From gregory.watkins-colwell at yale.edu Fri Nov 1 08:06:46 2024
From: gregory.watkins-colwell at yale.edu (Watkins-Colwell, Gregory)
Date: Fri, 1 Nov 2024 12:06:46 +0000
Subject: [Nhcoll-l] ZooMu Network RCN Kickoff!
In-Reply-To: <CAGL64X1-fo_aO++4GF7X5EwovDCaEErEpoAZfyMaMoY+16R6Qw@mail.gmail.com>
References: <CAGL64X1-fo_aO++4GF7X5EwovDCaEErEpoAZfyMaMoY+16R6Qw@mail.gmail.com>
Message-ID: <PH0PR08MB65028F615BB26EAE6DE67E31CE562@PH0PR08MB6502.namprd08.prod.outlook.com>
The Zoo-Museum Network (ZooMu) is having a kickoff webinar in Dec! Please see info below.
This is the 5-year, NSF-funded RCN to build a network of zoo and museum professionals. This webinar is our kickoff for the grant and are looking forward to hosting regular meetings moving forward, so please get in touch if you're interested in hearing more about ZooMu.
Please join us.
Take care,
Greg
[https://lh7-rt.googleusercontent.com/docsz/AD_4nXcS9vwQEpQ39gsuGCDY9iLJlfFTtqqoTrjfkNJu_z-YchC3m7uEvZ00kmut6sHvUDW-J90Bb-QHnm2dT64kYNkVIILkD9h6lj_37JGD5fSDmX9Fjn1yWui36Un2aFIZh0H0AFPMAdnSOEGsMIml1UMLTX4?key=lvQwSUKKlVGyJ7Y67kf0aQ]
Welcome to the ZooMu Network RCN Kickoff!
The Zoo Museum Network is an NSF-funded project that seeks to build a lasting network of biological collections staff who are equipped to work across living collections in zoos and aquariums and preserved biological collections in natural history museums. We aim to open broad new opportunities for biological collections research by linking living and preserved collections, databases, and professionals.
Join us for a kickoff webinar event to get the next 5 years of ZooMu RCN started.
Date: Monday, December 9, 2024
Time: 12pm PT; 3pm ET
Register here:
https://www.eventbrite.com/e/zoomu-network-rcn-kickoff-tickets-1060256318189?aff=eemailordconf&ref=eemailordconf&utm_campaign=order_payment_confirm&utm_medium=email&utm_source=eventbrite&utm_term=viewevent
****************
Gregory J. Watkins-Colwell
Sr. Collection Manager, Herpetology and Ichthyology
Division of Vertebrate Zoology
https://orcid.org/0000-0002-7789-9806
YALE PEABODY MUSEUM
Main Office: 203-432-3791; West Campus: 203-737-7568; Fax 203-432-9277
Package shipping address:
Greg Watkins-Colwell
Division of Vertebrate Zoology
YALE PEABODY MUSEUM
170-210 Whitney Avenue
New Haven, CT 06511 USA
203-432-3791
****************
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From katrina.menard at uconn.edu Fri Nov 1 11:12:52 2024
From: katrina.menard at uconn.edu (Menard, Katrina)
Date: Fri, 1 Nov 2024 15:12:52 +0000
Subject: [Nhcoll-l] Repairing historical glass lid
Message-ID: <0042D70D-0AB0-4AF9-8D75-8DE9D5188BB1@uconn.edu>
Hi All,
We have a historical glass jar storing a nemertine worm whose lid has cracked and is no longer forming a seal. Because the worm is prepared so uniquely and the jar is so tall (41.5 cm tall), the likelihood of finding a replacement is pretty low unless we invest in a custom made jar (which is unlikely since it?s a teaching specimen).
Does anyone know if there is a glue/epoxy that we could use to stabilize the cracks in the jar lid that won?t react with the ethanol preservative? Further, I?m not sure if there is a glue that won?t expand too much that it will further compromise the seal while we look for a more permanent solution.
Thank you for any insight you might have (picture of lid below).
Katrina Menard
------------------------------------------------------------------------------
Dr. Katrina Menard (she/her)
Collection Manager, Invertebrates
Ecology & Evolutionary Biology
University of Connecticut
Unit 3043, 75 N. Eagleville Rd.
Storrs, CT 06269-3043
email: katrina.menard at uconn.edu
Zootaxa Section Editor: Miroidea
[11B11AB4-7ADA-4850-ACEB-9DF1058DB3A4.jpeg]
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From couteaufin at btinternet.com Fri Nov 1 11:34:42 2024
From: couteaufin at btinternet.com (Simon Moore)
Date: Fri, 1 Nov 2024 15:34:42 +0000
Subject: [Nhcoll-l] Repairing historical glass lid
In-Reply-To: <0042D70D-0AB0-4AF9-8D75-8DE9D5188BB1@uconn.edu>
References: <0042D70D-0AB0-4AF9-8D75-8DE9D5188BB1@uconn.edu>
Message-ID: <8023DF5A-01E1-4F3E-8A5C-860FC49CE0BD@btinternet.com>
Hi Katrina,
I always cut my own by hand and grind the edges too. If you cannot find an easy ready-made solution, I can send you a blurb of how to do this and some tried-and-tested sealant information too.
With all good wishes, Simon
Simon Moore MIScT, RSci, FLS, ACR
Conservator of Natural Sciences and Cutlery Historian.
www.natural-history-conservation.com
> On 1 Nov 2024, at 15:12, Menard, Katrina <katrina.menard at uconn.edu> wrote:
>
> Hi All,
>
> We have a historical glass jar storing a nemertine worm whose lid has cracked and is no longer forming a seal. Because the worm is prepared so uniquely and the jar is so tall (41.5 cm tall), the likelihood of finding a replacement is pretty low unless we invest in a custom made jar (which is unlikely since it?s a teaching specimen).
>
> Does anyone know if there is a glue/epoxy that we could use to stabilize the cracks in the jar lid that won?t react with the ethanol preservative? Further, I?m not sure if there is a glue that won?t expand too much that it will further compromise the seal while we look for a more permanent solution.
>
> Thank you for any insight you might have (picture of lid below).
>
> Katrina Menard
> ------------------------------------------------------------------------------
> Dr. Katrina Menard (she/her)
> Collection Manager, Invertebrates
> Ecology & Evolutionary Biology
> University of Connecticut
> Unit 3043, 75 N. Eagleville Rd.
> Storrs, CT 06269-3043
> email: katrina.menard at uconn.edu
>
> Zootaxa Section Editor: Miroidea
>
>
>
> <11B11AB4-7ADA-4850-ACEB-9DF1058DB3A4.jpeg> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
From dyanega at gmail.com Fri Nov 1 11:56:43 2024
From: dyanega at gmail.com (Douglas Yanega)
Date: Fri, 1 Nov 2024 08:56:43 -0700
Subject: [Nhcoll-l] Repairing historical glass lid
In-Reply-To: <0042D70D-0AB0-4AF9-8D75-8DE9D5188BB1@uconn.edu>
References: <0042D70D-0AB0-4AF9-8D75-8DE9D5188BB1@uconn.edu>
Message-ID: <9a2f4bc1-9849-4abe-ab45-61a5220c6b4b@gmail.com>
On 11/1/24 8:12 AM, Menard, Katrina wrote:
> Does anyone know if there is a glue/epoxy that we could use to
> stabilize the cracks in the jar lid that won?t react with the ethanol
> preservative? Further, I?m not sure if there is a glue that won?t
> expand too much that it will further compromise the seal while we look
> for a more permanent solution.
I suspect the real question is how permanent do you mean by permanent.
There are a fair number of options for creating a gasket or seal, and
there's a lot of variation in how long they can be expected to hold up
over time. For example, just some inert glassware grease of some sort
would be easy to apply, and easy to re-apply in the future, though not
strictly speaking permanent. We have some enormous relaxing jars, sealed
only with grease, and the water in these jars hasn't evaporated yet
(I've been here 25 years, and these jars pre-date me) but we can open
and close the jars just fine. I think once I had to add like a fingertip
worth of fresh grease to one of them in that time, because it had become
almost impossible to get the lid off. I don't see why a crack can't be
sealed the same way.
Peace,
--
Doug Yanega Dept. of Entomology Entomology Research Museum
Univ. of California, Riverside, CA 92521-0314 voicemail:951-827-8704
FaceBook: Doug Yanega (disclaimer: opinions are mine, not UCR's)
https://faculty.ucr.edu/~heraty/yanega.html
"There are some enterprises in which a careful disorderliness
is the true method" - Herman Melville, Moby Dick, Chap. 82
From d.neumann at leibniz-lib.de Fri Nov 1 14:53:28 2024
From: d.neumann at leibniz-lib.de (Dirk Neumann)
Date: Fri, 1 Nov 2024 19:53:28 +0100
Subject: [Nhcoll-l] [EXTERN] Re: Repairing historical glass lid
In-Reply-To: <8023DF5A-01E1-4F3E-8A5C-860FC49CE0BD@btinternet.com>
References: <0042D70D-0AB0-4AF9-8D75-8DE9D5188BB1@uconn.edu>
<8023DF5A-01E1-4F3E-8A5C-860FC49CE0BD@btinternet.com>
Message-ID: <da187b50-2f03-42a4-823c-94b618dbae64@leibniz-lib.de>
... other wise you can just go the a glass workshop and ask the people there to cut you a new one. It would be good if the rim (approx. 1cm) would be ground to improve the attachment of the sealant on the glass surface of the lid.
With best wishes
Dirk
Am 01.11.2024 um 16:34 schrieb Simon Moore:
ACHTUNG/ATTENTION: Diese E-Mail stammt von einem externen Absender. / This e-mail comes from an external sender.
Hi Katrina,
I always cut my own by hand and grind the edges too. If you cannot find an easy ready-made solution, I can send you a blurb of how to do this and some tried-and-tested sealant information too.
With all good wishes, Simon
Simon Moore MIScT, RSci, FLS, ACR
Conservator of Natural Sciences and Cutlery Historian.
www.natural-history-conservation.com<http://www.natural-history-conservation.com>
On 1 Nov 2024, at 15:12, Menard, Katrina <katrina.menard at uconn.edu><mailto:katrina.menard at uconn.edu> wrote:
Hi All,
We have a historical glass jar storing a nemertine worm whose lid has cracked and is no longer forming a seal. Because the worm is prepared so uniquely and the jar is so tall (41.5 cm tall), the likelihood of finding a replacement is pretty low unless we invest in a custom made jar (which is unlikely since it?s a teaching specimen).
Does anyone know if there is a glue/epoxy that we could use to stabilize the cracks in the jar lid that won?t react with the ethanol preservative? Further, I?m not sure if there is a glue that won?t expand too much that it will further compromise the seal while we look for a more permanent solution.
Thank you for any insight you might have (picture of lid below).
Katrina Menard
------------------------------------------------------------------------------
Dr. Katrina Menard (she/her)
Collection Manager, Invertebrates
Ecology & Evolutionary Biology
University of Connecticut
Unit 3043, 75 N. Eagleville Rd.
Storrs, CT 06269-3043
email: katrina.menard at uconn.edu<mailto:katrina.menard at uconn.edu>
Zootaxa Section Editor: Miroidea
<11B11AB4-7ADA-4850-ACEB-9DF1058DB3A4.jpeg> _______________________________________________
Nhcoll-l mailing list
Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>
https://mailman.yale.edu/mailman/listinfo/nhcoll-l
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See http://www.spnhc.org for membership information.
Advertising on NH-COLL-L is inappropriate.
_______________________________________________
Nhcoll-l mailing list
Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>
https://mailman.yale.edu/mailman/listinfo/nhcoll-l
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See http://www.spnhc.org for membership information.
Advertising on NH-COLL-L is inappropriate.
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de<imap://dneumann at webmail.leibniz-lib.de:993/fetch%3EUID%3E/INBOX/Privat/www.leibniz-lib.de>
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
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From abraczi1 at msu.edu Fri Nov 1 15:44:02 2024
From: abraczi1 at msu.edu (Abraczinskas, Laura)
Date: Fri, 1 Nov 2024 19:44:02 +0000
Subject: [Nhcoll-l] Job Announcement!
Message-ID: <SN7PR12MB67427CF7EEFA957FDAA16B679A562@SN7PR12MB6742.namprd12.prod.outlook.com>
Hello,
I am circulating the job announcement below on behalf of the Search Committee Chairperson!
The Department of Integrative Biology at Michigan State University (https://integrativebiology.msu.edu<https://integrativebiology.msu.edu/>) and the Michigan State University Museum (https://museum.msu.edu/) are conducting a search for an Assistant/Associate Professor(s) and Curator of Vertebrate Collections. The advertisement can be viewed here (https://careers.msu.edu/en-us/job/520983/assistant-professortenure-system).
?
We seek excellent scholars who have independent, specimen-based research programs with strong potential for external funding. Curation, teaching, and integrated DEI activities are also important components of the position. We would be grateful if you could share our posting with colleagues and listservs.??
?
Please share suggestions of candidates with the Search Committee Chair (Catherine Lindell lindellc at msu.edu<mailto:lindellc at msu.edu>) so that we can encourage these individuals to apply.??
?
Sincerely,
Laura
Laura Abraczinskas (she/her)
Collections Manager, Vertebrate Collections
Michigan State University Museum
409 West Circle Drive
East Lansing, Michigan 48824
USA
(517) 355-1290 (office)
Michigan State University occupies the ancestral, traditional, and contemporary Lands of the Anishinaabeg?Three Fires Confederacy of Ojibwe, Odawa, and Potawatomi peoples. The University resides on Land ceded in the 1819 Treaty of Saginaw.
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From Kevin.Conway at ag.tamu.edu Fri Nov 1 16:16:14 2024
From: Kevin.Conway at ag.tamu.edu (Kevin W. Conway)
Date: Fri, 1 Nov 2024 20:16:14 +0000
Subject: [Nhcoll-l] Job Announcement: Staff Curator for Fishes/Herps @TAMU
In-Reply-To: <BN0P223MB004050E61BA277EFCAA4FD56D9562@BN0P223MB0040.NAMP223.PROD.OUTLOOK.COM>
References: <BN0P223MB004050E61BA277EFCAA4FD56D9562@BN0P223MB0040.NAMP223.PROD.OUTLOOK.COM>
Message-ID: <BN0P223MB0040E2C4DEF800AB5555D0E9D9562@BN0P223MB0040.NAMP223.PROD.OUTLOOK.COM>
Apologies if you have seen this one before! Just trying to spread the word.
____________________________________________________
Dear colleagues,
We are currently searching for a Staff Curator (Collections Manager) to manage the large collections of fishes and herps housed within the TAMU Biodiversity Research and Teaching Collections.
Please help us to get the word out by sharing the position announcement:
https://tamus.wd1.myworkdayjobs.com/AgriLife_Research_External/job/College-Station-TX/Curator_R-078363<https://urldefense.com/v3/__https:/tamus.wd1.myworkdayjobs.com/AgriLife_Research_External/job/College-Station-TX/Curator_R-078363__;!!KwNVnqRv!Hj0ZCRw0tW_5s9-gz8C_sMnJP6hSFiN3uTinkpdws8IrUGc1hzqWT72_KuH4AbPr8c1hzceBjGwHtwhEAYTj$>
Thank you!
Kevin W. Conway, Faculty Curator of Fishes
Lee Fitzgerald, Faculty Curator of Amphibians and Reptiles
Kevin W. Conway | Associate Professor and Curator of Fishes |
Department of Ecology and Conservation Biology | Texas A&M University
Rm 232, Wildlife, Fisheries & Ecological Sciences Building (WFES), 2258 TAMU
534 John Kimbrough Blvd, College Station, Texas 77843-2258
Webpage: https://sites.google.com/site/conwaykw/homepage
Support the Biodiversity Research and Teaching Collections!!<https://www.txamfoundation.com/give.aspx?c_id=2&d_id=441&sd_id=1536>
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From couteaufin at btinternet.com Sat Nov 2 08:32:32 2024
From: couteaufin at btinternet.com (Simon Moore)
Date: Sat, 2 Nov 2024 12:32:32 +0000
Subject: [Nhcoll-l] [EXTERN] Re: Repairing historical glass lid
In-Reply-To: <da187b50-2f03-42a4-823c-94b618dbae64@leibniz-lib.de>
References: <da187b50-2f03-42a4-823c-94b618dbae64@leibniz-lib.de>
Message-ID: <CB143B36-7852-46A7-A4FC-CA1F192EC5C9@btinternet.com>
And let me know if no one knows how to grind the jar rim
With all good wishes, Simon Moore.
Sent from my iPhone
> On 1 Nov 2024, at 18:53, Dirk Neumann <d.neumann at leibniz-lib.de> wrote:
>
> ?
> ... other wise you can just go the a glass workshop and ask the people there to cut you a new one. It would be good if the rim (approx. 1cm) would be ground to improve the attachment of the sealant on the glass surface of the lid.
>
> With best wishes
> Dirk
>
>> Am 01.11.2024 um 16:34 schrieb Simon Moore:
>> ACHTUNG/ATTENTION: Diese E-Mail stammt von einem externen Absender. / This e-mail comes from an external sender.
>>
>>
>> Hi Katrina,
>>
>> I always cut my own by hand and grind the edges too. If you cannot find an easy ready-made solution, I can send you a blurb of how to do this and some tried-and-tested sealant information too.
>>
>> With all good wishes, Simon
>>
>> Simon Moore MIScT, RSci, FLS, ACR
>> Conservator of Natural Sciences and Cutlery Historian.
>>
>> www.natural-history-conservation.com
>>
>>
>>> On 1 Nov 2024, at 15:12, Menard, Katrina <katrina.menard at uconn.edu> wrote:
>>>
>>> Hi All,
>>>
>>> We have a historical glass jar storing a nemertine worm whose lid has cracked and is no longer forming a seal. Because the worm is prepared so uniquely and the jar is so tall (41.5 cm tall), the likelihood of finding a replacement is pretty low unless we invest in a custom made jar (which is unlikely since it?s a teaching specimen).
>>>
>>> Does anyone know if there is a glue/epoxy that we could use to stabilize the cracks in the jar lid that won?t react with the ethanol preservative? Further, I?m not sure if there is a glue that won?t expand too much that it will further compromise the seal while we look for a more permanent solution.
>>>
>>> Thank you for any insight you might have (picture of lid below).
>>>
>>> Katrina Menard
>>> ------------------------------------------------------------------------------
>>> Dr. Katrina Menard (she/her)
>>> Collection Manager, Invertebrates
>>> Ecology & Evolutionary Biology
>>> University of Connecticut
>>> Unit 3043, 75 N. Eagleville Rd.
>>> Storrs, CT 06269-3043
>>> email: katrina.menard at uconn.edu
>>>
>>> Zootaxa Section Editor: Miroidea
>>>
>>>
>>>
>>> <11B11AB4-7ADA-4850-ACEB-9DF1058DB3A4.jpeg> _______________________________________________
>>> Nhcoll-l mailing list
>>> Nhcoll-l at mailman.yale.edu
>>> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>>>
>>> _______________________________________________
>>> NHCOLL-L is brought to you by the Society for the Preservation of
>>> Natural History Collections (SPNHC), an international society whose
>>> mission is to improve the preservation, conservation and management of
>>> natural history collections to ensure their continuing value to
>>> society. See http://www.spnhc.org for membership information.
>>> Advertising on NH-COLL-L is inappropriate.
>> _______________________________________________
>> Nhcoll-l mailing list
>> Nhcoll-l at mailman.yale.edu
>> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>>
>> _______________________________________________
>> NHCOLL-L is brought to you by the Society for the Preservation of
>> Natural History Collections (SPNHC), an international society whose
>> mission is to improve the preservation, conservation and management of
>> natural history collections to ensure their continuing value to
>> society. See http://www.spnhc.org for membership information.
>> Advertising on NH-COLL-L is inappropriate.
>
> --
> ****
>
> Dirk Neumann
> Collection Manager, Hamburg
>
> Postal address:
> Museum of Nature Hamburg
> Leibniz Institute for the Analysis
> of Biodiversity Change
> Dirk Neumann
> Martin-Luther-King-Platz 3
> 20146 Hamburg
> +49 40 238 317 ? 628
> d.neumann at leibniz-lib.de
> www.leibniz-lib.de
>
> --
> Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
> Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
>
> Stiftung des ?ffentlichen Rechts;
> Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
> Sitz der Stiftung: Adenauerallee 160 in Bonn
> Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
>
>
> --
> Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
> Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
>
> Stiftung des ?ffentlichen Rechts;
> Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
> Sitz der Stiftung: Adenauerallee 160 in Bonn
> Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
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From j at jk-conservation.com Sat Nov 2 19:47:47 2024
From: j at jk-conservation.com (Dr Jonathan Kemp)
Date: Sun, 3 Nov 2024 10:47:47 +1100
Subject: [Nhcoll-l] Repairing historical glass lid
In-Reply-To: <9a2f4bc1-9849-4abe-ab45-61a5220c6b4b@gmail.com>
References: <0042D70D-0AB0-4AF9-8D75-8DE9D5188BB1@uconn.edu>
<9a2f4bc1-9849-4abe-ab45-61a5220c6b4b@gmail.com>
Message-ID: <067f7b7d-e33d-42a0-b047-61830fba3b4f@jk-conservation.com>
HXTAL NYL-1 is a conservation grade epoxy resin specifically designed
for the conservation of glass and ceramics by Norman Tennent; it doesn't
yellow and is resistant to most solvents after curing incl. ethanol. It
does not expand. there are plenty of online information and howtos incl.
this one https://www.hisglassworks.com/manuals/hxtal_instructions.pdf?
Jonathan
On 2/11/24 02:56, Douglas Yanega wrote:
> On 11/1/24 8:12 AM, Menard, Katrina wrote:
>> Does anyone know if there is a glue/epoxy that we could use to
>> stabilize the cracks in the jar lid that won?t react with the ethanol
>> preservative? Further, I?m not sure if there is a glue that won?t
>> expand too much that it will further compromise the seal while we
>> look for a more permanent solution.
>
> I suspect the real question is how permanent do you mean by permanent.
> There are a fair number of options for creating a gasket or seal, and
> there's a lot of variation in how long they can be expected to hold up
> over time. For example, just some inert glassware grease of some sort
> would be easy to apply, and easy to re-apply in the future, though not
> strictly speaking permanent. We have some enormous relaxing jars,
> sealed only with grease, and the water in these jars hasn't evaporated
> yet (I've been here 25 years, and these jars pre-date me) but we can
> open and close the jars just fine. I think once I had to add like a
> fingertip worth of fresh grease to one of them in that time, because
> it had become almost impossible to get the lid off. I don't see why a
> crack can't be sealed the same way.
>
> Peace,
>
From PalmerL at si.edu Mon Nov 4 07:39:33 2024
From: PalmerL at si.edu (Palmer, Lisa)
Date: Mon, 4 Nov 2024 12:39:33 +0000
Subject: [Nhcoll-l] FW: ACTION REQUESTED: Major Disaster Declaration in NM
In-Reply-To: <PH0PR09MB11022877C04A0223C5AAB34F4A7572@PH0PR09MB11022.namprd09.prod.outlook.com>
References: <PH0PR09MB11022877C04A0223C5AAB34F4A7572@PH0PR09MB11022.namprd09.prod.outlook.com>
Message-ID: <MW5PR12MB5651C98794737D30F758C0F8D1512@MW5PR12MB5651.namprd12.prod.outlook.com>
fyi
From: FEMA-HENTF <fema-hentf at fema.dhs.gov>
Sent: Saturday, November 2, 2024 4:51 PM
Subject: ACTION REQUESTED: Major Disaster Declaration in NM
External Email - Exercise Caution
Dear HENTF members,
A major disaster declaration has been made on November 1st, 2024, for the recent severe storms and flooding in New Mexico (DR-4843-NM).
1. Public Assistance is currently available for categories A - G in the following counties: Chavez County. Learn more about Public Assistance<https://www.fema.gov/assistance/public/process>.
[cid:image001.png at 01DB2D45.2E9176C0]
EMERGENCY PROTECTIVE MEASURES may include, but are not limited to:
1. Temporary emergency repair (blue roofs and other work) or stabilization of an eligible facility if it eliminates or lessens an immediate threat
2. Wet vacuuming, damp wiping, or vacuuming with High-Efficiency Particulate Air (HEPA) equipment of the interior space
3. Removal of contaminated gypsum board, plaster (or similar wall finishes), carpet or floor finishes, and ceilings or permanent light fixtures
4. Cleaning of contaminated heating and ventilation (including ductwork), plumbing, and air conditioning systems or other mechanical equipment
5. Removal or relocation of collections to prevent damage or loss
CATEGORY E: PUBLIC BUILDINGS AND EQUIPMENT may include, but is not limited to:
1. Repair or replacement of materials, equipment, and exhibition furnishings associated with the storage, display, preservation, or exhibition of collections and individual objects
2. Treatment of "special library collections," but not replacement of rare books, manuscripts, and other fragile materials
3. Stabilization - work necessary to return items to a condition in which they can function in the same capacity as they did prior to the disaster
4. Reasonable costs associated with the development of the treatment plan for the collection or individual object
5. Costs associated with restoring an item to pre-disaster (but not original) condition
The Public Assistance Program Delivery Process. For more information, go to Public Assistance Program and Policy Guide Version 4 (fema.gov)<https://www.fema.gov/sites/default/files/documents/fema_pappg-v4-updated-links_policy_6-1-2020.pdf>.
[cid:image002.png at 01DB2D45.2E9176C0]
1. Individual Assistance is available to individuals and households in the following counties: Chavez County. For disasters declared on or after March 22nd, 2024, FEMA's Individual Assistance program was expanded to include quicker access to needed funds including simplifying assistance for self-employed individuals such as self-employed artists and entrepreneurs. Learn more about this update in the Press Release<https://www.fema.gov/press-release/20240119/biden-harris-administration-reforms-disaster-assistance-program-help>.
1. Information on DR-4843 can be found at 4843 | FEMA.gov<https://www.fema.gov/disaster/4843>.
Please reach out to your members and constituents to help gather reports of damage, identify any unmet needs, and share the following resources:
* Were any cultural institutions or arts organizations affected? If so, how? Please encourage those impacted to fill out one of the following Rapid Damage Assessment Forms:
* Cultural Institutions<https://urldefense.us/v3/__https:/docs.google.com/forms/d/e/1FAIpQLSdX2xFpCGc5gTq7UKQSO7xNQqpdL2kQMrFYNwx1RDxT-qsO8g/viewform__;!!BClRuOV5cvtbuNI!BEwzqxgODI1zp5m8dPjxlgwYFPE7FIaj_O7W7ACq-9ybGrR-NnlJbEYKQFEmx90HpQxxIbSEg_kByGNE4Gt2Xy4nRKR0tQ$>
* Arts Organizations<https://urldefense.us/v3/__https:/forms.gle/fNAcHzBoUNWiWXY36__;!!BClRuOV5cvtbuNI!FF4rrinph9gvQncugXdq34H2en9zNSLRF0jqQYTXQ73WKE62iV2HZ8Ykr5Bt7tUEfC6fSU6AIIQi187ecfI2p0gcR5cdnkM$>
* Individual Artists and Performing Groups<https://urldefense.us/v3/__https:/forms.gle/QL5gAYNUeG6fYRWn7__;!!BClRuOV5cvtbuNI!FF4rrinph9gvQncugXdq34H2en9zNSLRF0jqQYTXQ73WKE62iV2HZ8Ykr5Bt7tUEfC6fSU6AIIQi187ecfI2p0gcibV5DBo$>
* Cultural institutions, arts organizations, and artists and performing groups can call the National Heritage Responders hotline: 202.661.8068. The National Heritage Responders, a team of trained conservators and collections care professionals administered by the Foundation for Advancement in Conservation, are available 24/7 to provide advice and guidance.
* Members of the public and individual artists who have questions about saving family heirlooms and personal collections can email the National Heritage Responders at NHRpublichelpline at culturalheritage.org<mailto:NHRpublichelpline at culturalheritage.org>.
* HENTF's Save Your Family Treasures guidance is available at https://www.fema.gov/disaster/recover/save-family-treasures. Here you can find the downloadable FEMA fact sheets "After the Flood: Advice for Salvaging Damaged Family Treasures" and "Salvaging Water-Damaged Family Valuables and Heirlooms," available in multiple languages.
Please convey any questions to me at fema-hentf at fema.dhs.gov<mailto:fema-hentf at fema.dhs.gov>. I will stay in touch as disaster assistance evolves.
With thanks,
Sarah
Sarah Caruso
Disaster Operations Specialist | Heritage Emergency National Task Force
Office of Environmental Planning & Historic Preservation
Resilience
Mobile: (202) 718-2011
Sarah.caruso at fema.dhs.gov<mailto:Sarah.caruso at fema.dhs.gov>
https://culturalrescue.si.edu/who-we-are/hentf
Federal Emergency Management Agency
fema.gov<https://www.fema.gov/>
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From heidi.mead at gcsu.edu Mon Nov 4 07:40:30 2024
From: heidi.mead at gcsu.edu (Heidi Mead)
Date: Mon, 4 Nov 2024 12:40:30 +0000
Subject: [Nhcoll-l] Tenure-track Ornithologist position
Message-ID: <SA0PR04MB73720796F6D80C243ABEAC48E8512@SA0PR04MB7372.namprd04.prod.outlook.com>
Good morning!
I am forwarding the attached job position on behalf of our search committee.
We are currently searching for an ornithologist. A paleo-ornithologist would be great. Please send the announcement to anyone you know who might be interested. Application deadline is Nov. 11.
Please reach out to Dr. Al Mead if you have any questions.
al.mead at gcsu.edu<mailto:al.mead at gcsu.edu>
Thank you for helping to spread the word,
Heidi
Heidi F. Mead (She/Her)
FOSSIL PREPARATION
WILLIAM P. WALL MUSEUM OF NATURAL HISTORY
BIOLOGICAL & ENVIRONMENTAL SCIENCES
GEORGIA COLLEGE
102 Herty Hall
478-445-2395
Heidi.mead at gcsu.edu<mailto:Heidi.mead at gcsu.edu>
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From kgre at kglakademi.dk Tue Nov 5 09:19:56 2024
From: kgre at kglakademi.dk (Kristian Murphy Gregersen)
Date: Tue, 5 Nov 2024 14:19:56 +0000
Subject: [Nhcoll-l] Job posting - assistant/associate professor
Message-ID: <AM8PR05MB8052DA7614FEEE0919541AD0CE522@AM8PR05MB8052.eurprd05.prod.outlook.com>
Dear Natural History Collections Community,
We have an opening as an assistant, or associate, professor within conservation of paper and objects made thereof.
I know it's not very natural history like, but maybe one you's'd know someone out there that would fit the profile, and be interested in applying?
We're a small, "hyggelig", institute under the umbrella of the Royal Danish Academy (https://royaldanishacademy.com/en/institute/conservation/about-institute-conservation). We've been teaching conservation within paper, arts, murals, cultural history objects, monuments, and natural history, for more than 50 years. We only take in students every 4 years (at the moment) and teach and supervise them all the way through their bachelor and master programmes (and in some cases also their PhD's).
I hope you'll help us distribute this unique opportunity.
All the best,
Kristian
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From jpandey at aibs.org Tue Nov 5 16:42:01 2024
From: jpandey at aibs.org (Jyotsna Pandey)
Date: Tue, 5 Nov 2024 16:42:01 -0500
Subject: [Nhcoll-l] Register Soon for this Nov. 7 Webinar on Natural History
Collections and NAGPRA
Message-ID: <CAOuC=0GAfyFTGJ-D5_T=YqNaTx_pdvMLFgyMDHxNE6_j5BK1vQ@mail.gmail.com>
Natural History Collections and Repatriation: When Does NAGPRA Apply?
Date: November 7, 2024
Time: 3:00-4:00 PM Eastern Time
Co-hosts: Natural Science Collections Alliance, Society for the
Preservation of Natural History Collections, American Institute of
Biological Sciences
This webinar will be recorded.
https://io.aibs.org/nagpra
Please join us for an information session about repatriation and how it
relates to natural history collections, including zoological, botanical,
paleontological, and geological collections. Speakers, including National
NAGPRA Program Manager Melanie O?Brien and others, will discuss the Native
American Graves Protection and Repatriation Act (NAGPRA). The program will
delve into the scope of NAGPRA, recent updates to NAGPRA regulations, what
your institution may need to do before an upcoming deadline, how to
approach repatriation, and examples of repatriation involving
non-anthropological collections. There will be time for audience Q&A at the
end.
Intended audience:
-
Collections and curatorial staff across non-anthropological disciplines
-
Tribal, Native Hawaiian, and institutional representatives engaged in
NAGPRA compliance and consultation
-
Researchers, students, and community members working with or interested
in issues of repatriation
Register here
<https://burkinc.zoom.us/webinar/register/WN_mdByYkTMSfWW8pRgBNXaXA> to
receive the Zoom link.
___________________
Jyotsna Pandey, Ph.D.
Director of Community Programs
American Institute of Biological Sciences (AIBS)
AIBS website: www.aibs.org
Follow AIBS on X/Twitter! @AIBSbiology <https://twitter.com/aibsbiology>
--
This message is confidential and should only be read by its intended
recipients.?
If you have received it in error, please notify the sender and
delete all copies.
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From PalmerL at si.edu Wed Nov 6 10:01:55 2024
From: PalmerL at si.edu (Palmer, Lisa)
Date: Wed, 6 Nov 2024 15:01:55 +0000
Subject: [Nhcoll-l] FW: Freedom Rider Resiliency Center
In-Reply-To: <PH0PR09MB110225E712696B5848CFEF8E4A7532@PH0PR09MB11022.namprd09.prod.outlook.com>
References: <PH0PR09MB110225E712696B5848CFEF8E4A7532@PH0PR09MB11022.namprd09.prod.outlook.com>
Message-ID: <MW5PR12MB56517C0B8510EFDA5A3E4F17D1532@MW5PR12MB5651.namprd12.prod.outlook.com>
fyi
From: FEMA-HENTF <fema-hentf at fema.dhs.gov>
Sent: Wednesday, November 6, 2024 9:51 AM
Subject: Freedom Rider Resiliency Center
External Email - Exercise Caution
Good morning, HENTF members,
Anniston, Alabama is a city known for its significant role in the US Civil Rights Movement. They have faced numerous economic and environmental challenges and are now seeking to promote justice by leveraging their historic significance through the creation of the Freedom Rider Resiliency Center.
Please take the time to review the attached document and reach out to us if you know of any programs or grants from your respective agencies and organizations that may align with this project.
With thanks,
Sarah
Sarah Caruso
Disaster Operations Specialist | Heritage Emergency National Task Force
Office of Environmental Planning & Historic Preservation
Resilience
Mobile: (202) 718-2011
Sarah.caruso at fema.dhs.gov<mailto:Sarah.caruso at fema.dhs.gov>
https://culturalrescue.si.edu/who-we-are/hentf<https://urldefense.us/v3/__https:/culturalrescue.si.edu/who-we-are/hentf__;!!BClRuOV5cvtbuNI!DLbv3f4AqAew8GWbmAHsatTJbKOfrQvs3byJcJZ9nHPDoBpdIzBT8Y-BL3mP9N-6URxr9kqJdPJygAHPk9U$>
Federal Emergency Management Agency
fema.gov<https://www.fema.gov/>
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From jpandey at aibs.org Wed Nov 6 13:00:00 2024
From: jpandey at aibs.org (Jyotsna Pandey)
Date: Wed, 6 Nov 2024 13:00:00 -0500
Subject: [Nhcoll-l] Graduate Students: Apply for the 2025 AIBS Emerging
Public Policy Leadership Award
Message-ID: <CAOuC=0F58b4wLQERW9mhAN4gASMQk7bwrBhQON6hPbwPF0+02g@mail.gmail.com>
*Please share this announcement with interested graduate students*
Are you a science graduate student looking to make a difference in science
policy and funding? The American Institute of Biological Sciences (AIBS) is
now accepting applications for the 2025 Emerging Public Policy Leadership
Award. This award recognizes graduate students in the biological sciences
who are demonstrating an interest and aptitude for working at the
intersection of science and policy.
Recipients of the AIBS Emerging Public Policy Leadership Award receive:
- *A trip to Washington, DC*, to participate in the AIBS Congressional
Visits Day, an annual event where scientists meet with lawmakers to
advocate for federal investment in the biological sciences, with a primary
focus on the National Science Foundation. The event will be held over three
days in the spring of 2025 (likely in April). Domestic travel and hotel
expenses are paid for the winners.
- *Policy and communications training*, including information on the
legislative process, trends in federal science funding, and how to engage
with policymakers and the news media.
- *Meetings with congressional policymakers* to discuss the importance
of federal investment in the biological sciences.
- *A one-year online subscription* to the journal BioScience.
The 2025 award is open to U.S. citizens and U.S. permanent residents
enrolled in a graduate degree program in the biological sciences, science
education, or a closely allied field. Applicants should have a demonstrated
interest in and commitment to science policy and/or science education
policy. Prior recipients are not eligible for the award.
Applications are due by 05:00 PM Eastern Time on January 15, 2025. Learn
more: io.aibs.org/eppla
___________________
Jyotsna Pandey, Ph.D.
Director of Community Programs
American Institute of Biological Sciences (AIBS)
AIBS website: www.aibs.org
Follow AIBS on X/Twitter! @AIBSbiology <https://twitter.com/aibsbiology>
--
This message is confidential and should only be read by its intended
recipients.?
If you have received it in error, please notify the sender and
delete all copies.
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From jgoodwin at floridamuseum.ufl.edu Thu Nov 7 09:00:57 2024
From: jgoodwin at floridamuseum.ufl.edu (Goodwin,Jillian)
Date: Thu, 7 Nov 2024 14:00:57 +0000
Subject: [Nhcoll-l] Today: TCN Webinar Series
In-Reply-To: <DS7PR22MB3598E62CE1B3AE9DCA3AAF0B85562@DS7PR22MB3598.namprd22.prod.outlook.com>
References: <DS7PR22MB3598E62CE1B3AE9DCA3AAF0B85562@DS7PR22MB3598.namprd22.prod.outlook.com>
Message-ID: <DS7PR22MB359815E7FF107D28C37B59CE855C2@DS7PR22MB3598.namprd22.prod.outlook.com>
Join us today!
November 7, 11:00am ET - The importance of 3D imaging in current trait-based mammal research: Winners of the Ranges Imaging Mini-Awards (Abstract<http://www.idigbio.org/wiki/index.php/Webinar_Series:_Checking_in_on_TCN%E2%80%99s_and_their_Networks_of_Digitization_Knowledge>)
Click here to register via Zoom.<https://ufl.zoom.us/webinar/register/WN_itqqoLOjRJWVglAf2P8DZQ>
Four of the six recipients of the 2024 Ranges Imaging Mini-Awards will present their research and how 3D imaging has helped to advance their work.
1. Skull morphology variation across environmental conditions in widely distributed yellow bats. Speaker: Sydney Decker, Ohio State
2. Assessing phenotypic differences within and between Zapus species in the western United States. Speaker: Jos? Gabriel Martinez-Fonseca, NAU
3. Evolutionary and temporal variation of miniaturized mammalian morphologies. Speaker: Priscila de Souza Rothier Duarte, Cornell
4.
Spatial and temporal variation of bite force in camas pocket gophers. Speaker: Brian Tanis, Oregon State
[https://www.idigbio.org/sites/default/files/workshop-images/TCNWebinars2024/Untitled-2%20%284%29.png]
Photo credit: (L) Sharlene Santana ?; (R) @diginverts
Join iDigBio for the Thematic Collection Networks Webinar Series: Checking in on TCNs and Their Networks of Digitization Knowledge<https://idigb.io/d>, an engaging set of sessions dedicated to exploring innovative approaches in biodiversity digitization. This series brings together experts and practitioners from various Thematic Collection Networks (TCNs) to share their insights, tools, and best practices for advancing digital access to biological collections. Each webinar will spotlight specific themes, offering participants practical knowledge, and networking opportunities to enhance any digitization projects. Whether you're new to the field or a seasoned professional, this series provides valuable resources and a collaborative community focused on unlocking the potential of digitized biodiversity data. Click here to view the Series Announcement page for the complete list of scheduled webinars.<https://idigb.io/d>
Jillian Goodwin
iDigBio Conference Manager
Florida Museum of Natural History
508-887-6043
www.idigbio.org
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From sergio.montagud at gmail.com Fri Nov 8 07:06:48 2024
From: sergio.montagud at gmail.com (Sergio Montagud)
Date: Fri, 8 Nov 2024 12:06:48 +0000
Subject: [Nhcoll-l] Skeleton preservation
Message-ID: <DB9PR03MB8424703429D667471856CA23AF5D2@DB9PR03MB8424.eurprd03.prod.outlook.com>
Good morning,
This is a query for those working in skeleton preservation. We have some recently acquired, disarticulated specimens prepared by different taxidermists. The issue is that some of them, especially the larger ones, still emit a very unpleasant odor that we haven?t been able to remove, even by soaking them in water with ammonia. Is there an effective and proven method for eliminating this bad smell from the bones, which I assume is caused by residual fat still trapped in them?
Thank you very much.
Sergio Montagud
--
********************************
Sergio Montagud Alario
Museu [UV] Hist?ria Natural
Universitat de Val?ncia
e-mail: sergio.montagud at uv.es<mailto:sergio.montagud at uv.es>
********************************
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From abraczi1 at msu.edu Fri Nov 8 13:47:45 2024
From: abraczi1 at msu.edu (Abraczinskas, Laura)
Date: Fri, 8 Nov 2024 18:47:45 +0000
Subject: [Nhcoll-l] Job Announcement with updated link
Message-ID: <SN7PR12MB674293636511D2BE92665A519A5D2@SN7PR12MB6742.namprd12.prod.outlook.com>
Hello,
MSU Human Resources updated the link for this job posting and provided a new date of November 27, 2024 for review of applications. The updated link is here (https://careers.msu.edu/en-us/job/521070/assistant-professortenure-system) and included below.
I am circulating the job announcement below on behalf of the Search Committee Chairperson.
The Department of Integrative Biology at Michigan State University (https://integrativebiology.msu.edu<https://integrativebiology.msu.edu/>) and the Michigan State University Museum (https://museum.msu.edu/) are conducting a search for an Assistant/Associate Professor(s) and Curator of Vertebrate Collections. The advertisement can be viewed here (https://careers.msu.edu/en-us/job/521070/assistant-professortenure-system).
?
We seek excellent scholars who have independent, specimen-based research programs with strong potential for external funding. Curation, teaching, and integrated DEI activities are also important components of the position. We would be grateful if you could share our posting with colleagues and listservs.??
?
Please share suggestions of candidates with the Search Committee Chair (Catherine Lindell lindellc at msu.edu<mailto:lindellc at msu.edu>) so that we can encourage these individuals to apply.??
?
Sincerely,
Laura
Laura Abraczinskas (she/her)
Collections Manager, Vertebrate Collections
Michigan State University Museum
409 West Circle Drive
East Lansing, Michigan 48824
USA
(517) 355-1290 (office)
Michigan State University occupies the ancestral, traditional, and contemporary Lands of the Anishinaabeg?Three Fires Confederacy of Ojibwe, Odawa, and Potawatomi peoples. The University resides on Land ceded in the 1819 Treaty of Saginaw.
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From jpandey at aibs.org Mon Nov 11 14:00:00 2024
From: jpandey at aibs.org (Jyotsna Pandey)
Date: Mon, 11 Nov 2024 14:00:00 -0500
Subject: [Nhcoll-l] Register for this Webinar to Learn About BCoN's BIOFAIR
Data Network Project
Message-ID: <CAOuC=0GP7egXm6+TnPSzw8QK_PO5sKv0ivhi53pKhqRJ2ckyeA@mail.gmail.com>
BCoN Webinar: BIOFAIR Data Network Listening Sessions ? A Summary
Date: November 13, 2024
Time: 3:00-4:00 PM Eastern
Registration link:
https://burkinc.zoom.us/webinar/register/WN_Ji_RzxJDSPCob29SAH5CZA
Intended audience:
-
Collections and curatorial professionals across natural history
disciplines
-
Biodiversity researchers, students, and individuals working on or
interested in issues of data sharing, management, and integration
The Biodiversity Collections Network (BCoN), in collaboration with the
American Institute of Biological Sciences (AIBS), held a series of
domain-focused virtual listening sessions over the summer to engage an
expansive set of stakeholders toward Building an Integrated, Open,
Findable, Accessible, Interoperable, and Reusable (BIOFAIR) Data Network.
The sessions convened stakeholders from the federal agency
<https://bcon.aibs.org/our-work/current/federal-agencies-session/>, genetic
and genomic data
<https://bcon.aibs.org/our-work/current/genetic-genomic-data-session/>, One
Health <https://bcon.aibs.org/our-work/current/one-health-session/>, ecological
data <https://bcon.aibs.org/our-work/current/ecological-data-session/>, climate
and environmental data
<https://bcon.aibs.org/our-work/current/climate-environmental-data-session/>,
and biodiversity informatics
<https://bcon.aibs.org/our-work/current/biodiversity-informatics-session/>
communities with the goal of initiating a collaborative and accessible
partnership towards an integrative and expanded data network.
The final summary report
<https://bcon.aibs.org/2024/10/09/summary-report-listening-sessions/> focusing
on the areas of unity across the six virtual Listening Sessions is now
available. The steering committee is holding a webinar on Wednesday,
November 13, 2024 at 3:00 PM ET to discuss this report and to gather
additional feedback to inform preparations for the upcoming
interdisciplinary workshop (February 2025) to develop recommendations and
create a roadmap towards a FAIR, open, and integrated data network.
___________________
Jyotsna Pandey, Ph.D.
Director of Community Programs, American Institute of Biological Sciences
Executive Director, Natural Science Collections Alliance
--
This message is confidential and should only be read by its intended
recipients.?
If you have received it in error, please notify the sender and
delete all copies.
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From Joosep.Sarapuu at loodusmuuseum.ee Tue Nov 12 06:45:37 2024
From: Joosep.Sarapuu at loodusmuuseum.ee (Joosep Sarapuu)
Date: Tue, 12 Nov 2024 11:45:37 +0000
Subject: [Nhcoll-l] Priority specimens
Message-ID: <d0d57b5534a84a1b8e61f85a3b97881a@loodusmuuseum.ee>
Dear all,
I would like to inquire about how you have solved the topic of priority specimens in your museums:
* What criteria have you used to select such items?
* How many such priority items do you have within a (sub)collection?
* Where are they located, and have you implemented any particular system for marking or identifying them?
Sincerely,
Joosep Sarapuu
Estonian Museum of Natural History
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From sergio.montagud at gmail.com Tue Nov 12 07:23:20 2024
From: sergio.montagud at gmail.com (Sergio Montagud)
Date: Tue, 12 Nov 2024 12:23:20 +0000
Subject: [Nhcoll-l] Skeleton preservation
In-Reply-To: <CABtEb03D+4ocTOyY+FDLUhXW3u9Wave+3m-=HaxQqTKN2=oMYw@mail.gmail.com>
References: <DB9PR03MB8424703429D667471856CA23AF5D2@DB9PR03MB8424.eurprd03.prod.outlook.com>
<CABtEb03D+4ocTOyY+FDLUhXW3u9Wave+3m-=HaxQqTKN2=oMYw@mail.gmail.com>
Message-ID: <DB9PR03MB84247045B72E25108B1C764EAF592@DB9PR03MB8424.eurprd03.prod.outlook.com>
Dear Kairo,
Thank you for your response. The skeleton is not from a reptile; it?s from an Asiatic lion. The bones appear to be very white and somewhat with fat (I?ve attached a picture), but the smell is too strong to place them in the preservation room. Currently, all the pieces are outside, waiting for the odor to dissipate. I wonder if there is a product that could eliminate the smell, such as ammonia, but after applying (immersion) it for seven consecutive days, I haven?t achieved good results, and I don?t want to risk degrading the bones with chemicals.
Sergio
De: Kairo Z <hezhu1 at gmail.com>
Fecha: viernes, 8 de noviembre de 2024, 17:08
Para: Sergio Montagud <sergio.montagud at gmail.com>
Asunto: Re: [Nhcoll-l] Skeleton preservation
Can you take some pictures of them? Snakes in general do not tend to have a lot of fat in the bone. So I'm wondering it may be due to something else like moisture, or a past preparation technique. Is there any staining?
On Fri, Nov 8, 2024, 6:06 AM Sergio Montagud <sergio.montagud at gmail.com<mailto:sergio.montagud at gmail.com>> wrote:
Good morning,
This is a query for those working in skeleton preservation. We have some recently acquired, disarticulated specimens prepared by different taxidermists. The issue is that some of them, especially the larger ones, still emit a very unpleasant odor that we haven?t been able to remove, even by soaking them in water with ammonia. Is there an effective and proven method for eliminating this bad smell from the bones, which I assume is caused by residual fat still trapped in them?
Thank you very much.
Sergio Montagud
--
********************************
Sergio Montagud Alario
Museu [UV] Hist?ria Natural
Universitat de Val?ncia
e-mail: sergio.montagud at uv.es<mailto:sergio.montagud at uv.es>
********************************
_______________________________________________
Nhcoll-l mailing list
Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>
https://mailman.yale.edu/mailman/listinfo/nhcoll-l
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See http://www.spnhc.org for membership information.
Advertising on NH-COLL-L is inappropriate.
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From couteaufin at btinternet.com Tue Nov 12 12:19:13 2024
From: couteaufin at btinternet.com (Simon Moore)
Date: Tue, 12 Nov 2024 17:19:13 +0000
Subject: [Nhcoll-l] Skeleton preservation
In-Reply-To: <DB9PR03MB84247045B72E25108B1C764EAF592@DB9PR03MB8424.eurprd03.prod.outlook.com>
References: <DB9PR03MB8424703429D667471856CA23AF5D2@DB9PR03MB8424.eurprd03.prod.outlook.com>
<CABtEb03D+4ocTOyY+FDLUhXW3u9Wave+3m-=HaxQqTKN2=oMYw@mail.gmail.com>
<DB9PR03MB84247045B72E25108B1C764EAF592@DB9PR03MB8424.eurprd03.prod.outlook.com>
Message-ID: <9BEF04BE-CFF7-47B1-B65D-63D9286BF7DE@btinternet.com>
Bad smells from specimens - there are products used in taxidermy such as OdorXit which apparently work well although I haven?t needed to try them as yet!
With all good wishes, Simon
Simon Moore MIScT, RSci, FLS, ACR
Conservator of Natural Sciences and Cutlery Historian.
www.natural-history-conservation.com
> On 12 Nov 2024, at 12:23, Sergio Montagud <sergio.montagud at gmail.com> wrote:
>
> Dear Kairo,
>
> Thank you for your response. The skeleton is not from a reptile; it?s from an Asiatic lion. The bones appear to be very white and somewhat with fat (I?ve attached a picture), but the smell is too strong to place them in the preservation room. Currently, all the pieces are outside, waiting for the odor to dissipate. I wonder if there is a product that could eliminate the smell, such as ammonia, but after applying (immersion) it for seven consecutive days, I haven?t achieved good results, and I don?t want to risk degrading the bones with chemicals.
> Sergio
> De: Kairo Z <hezhu1 at gmail.com>
> Fecha: viernes, 8 de noviembre de 2024, 17:08
> Para: Sergio Montagud <sergio.montagud at gmail.com>
> Asunto: Re: [Nhcoll-l] Skeleton preservation
> Can you take some pictures of them? Snakes in general do not tend to have a lot of fat in the bone. So I'm wondering it may be due to something else like moisture, or a past preparation technique. Is there any staining?
> On Fri, Nov 8, 2024, 6:06 AM Sergio Montagud <sergio.montagud at gmail.com> wrote:
> Good morning,
> This is a query for those working in skeleton preservation. We have some recently acquired, disarticulated specimens prepared by different taxidermists. The issue is that some of them, especially the larger ones, still emit a very unpleasant odor that we haven?t been able to remove, even by soaking them in water with ammonia. Is there an effective and proven method for eliminating this bad smell from the bones, which I assume is caused by residual fat still trapped in them?
> Thank you very much.
> Sergio Montagud
> --
> ********************************
> Sergio Montagud Alario
> Museu [UV] Hist?ria Natural
> Universitat de Val?ncia
> e-mail: sergio.montagud at uv.es
> ********************************
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.<IMG_2525.jpg>_______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
From sergio.montagud at gmail.com Tue Nov 12 14:09:11 2024
From: sergio.montagud at gmail.com (Sergio Montagud)
Date: Tue, 12 Nov 2024 19:09:11 +0000
Subject: [Nhcoll-l] Skeleton preservation
In-Reply-To: <SA1PR22MB4212BE2CE50D42F9A151832DEC592@SA1PR22MB4212.namprd22.prod.outlook.com>
References: <DB9PR03MB8424703429D667471856CA23AF5D2@DB9PR03MB8424.eurprd03.prod.outlook.com>
<CABtEb03D+4ocTOyY+FDLUhXW3u9Wave+3m-=HaxQqTKN2=oMYw@mail.gmail.com>
<DB9PR03MB84247045B72E25108B1C764EAF592@DB9PR03MB8424.eurprd03.prod.outlook.com>
<SA1PR22MB4212BE2CE50D42F9A151832DEC592@SA1PR22MB4212.namprd22.prod.outlook.com>
Message-ID: <DB9PR03MB84249715C0EAB3002AF8D4F5AF592@DB9PR03MB8424.eurprd03.prod.outlook.com>
Thank you, Verity, for your help. I can try the technique you recommended on the larger bones, but it?s difficult to apply to smaller bones, like those of the hand and vertebrae. I?ll give it a try and see the results. Thanks again for your help.
Simon, OdorXit sounds like a good option, but I think it might be a bit hard to find here in Europe.
Best wishes,
Sergio
De: Mathis,Verity L <vmathis at flmnh.ufl.edu>
Fecha: martes, 12 de noviembre de 2024, 14:15
Para: Sergio Montagud <sergio.montagud at gmail.com>
Asunto: RE: [Nhcoll-l] Skeleton preservation
HI Sergio
If you don?t mind doing some minor destructive work to the bones, you can always drill the bones with a small bit (using a Dremel or something similar) near the ends and re-soak them in an ammonia solution, that will help release some of the inner oils and fats a little faster. Just a hole at either end might be sufficient. But its not uncommon for us to have to soak large mammal bones for months to get them satisfactorily degreased. A 20% or lower solution shouldn?t damage them, I haven?t seen any evidence of that here in our collection.
Best of luck
Verity
******************************
Verity L. Mathis, Ph.D.
Mammal Collections Manager
Florida Museum of Natural History
University of Florida
1659 Museum Road
Gainesville FL 32611
Phone: (352) 273-2114
Email: vmathis at flmnh.ufl.edu<mailto:vmathis at flmnh.ufl.edu>
FLMNH Mammals Website: https://www.floridamuseum.ufl.edu/mammals/
Google Scholar: https://tinyurl.com/vlmathis
Google Scholar for FLMNH Mammal Collection: https://tinyurl.com/flmnh-mammals
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Sergio Montagud
Sent: Tuesday, November 12, 2024 7:23 AM
To: Kairo Z <hezhu1 at gmail.com>; nhcoll-l at mailman.yale.edu
Subject: Re: [Nhcoll-l] Skeleton preservation
[External Email]
Dear Kairo,
Thank you for your response. The skeleton is not from a reptile; it?s from an Asiatic lion. The bones appear to be very white and somewhat with fat (I?ve attached a picture), but the smell is too strong to place them in the preservation room. Currently, all the pieces are outside, waiting for the odor to dissipate. I wonder if there is a product that could eliminate the smell, such as ammonia, but after applying (immersion) it for seven consecutive days, I haven?t achieved good results, and I don?t want to risk degrading the bones with chemicals.
Sergio
De: Kairo Z <hezhu1 at gmail.com<mailto:hezhu1 at gmail.com>>
Fecha: viernes, 8 de noviembre de 2024, 17:08
Para: Sergio Montagud <sergio.montagud at gmail.com<mailto:sergio.montagud at gmail.com>>
Asunto: Re: [Nhcoll-l] Skeleton preservation
Can you take some pictures of them? Snakes in general do not tend to have a lot of fat in the bone. So I'm wondering it may be due to something else like moisture, or a past preparation technique. Is there any staining?
On Fri, Nov 8, 2024, 6:06 AM Sergio Montagud <sergio.montagud at gmail.com<mailto:sergio.montagud at gmail.com>> wrote:
Good morning,
This is a query for those working in skeleton preservation. We have some recently acquired, disarticulated specimens prepared by different taxidermists. The issue is that some of them, especially the larger ones, still emit a very unpleasant odor that we haven?t been able to remove, even by soaking them in water with ammonia. Is there an effective and proven method for eliminating this bad smell from the bones, which I assume is caused by residual fat still trapped in them?
Thank you very much.
Sergio Montagud
--
********************************
Sergio Montagud Alario
Museu [UV] Hist?ria Natural
Universitat de Val?ncia
e-mail: sergio.montagud at uv.es<mailto:sergio.montagud at uv.es>
********************************
_______________________________________________
Nhcoll-l mailing list
Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>
https://mailman.yale.edu/mailman/listinfo/nhcoll-l
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See http://www.spnhc.org<http://www.spnhc.org/> for membership information.
Advertising on NH-COLL-L is inappropriate.
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From couteaufin at btinternet.com Tue Nov 12 18:26:49 2024
From: couteaufin at btinternet.com (Simon Moore)
Date: Tue, 12 Nov 2024 23:26:49 +0000
Subject: [Nhcoll-l] Skeleton preservation
In-Reply-To: <DB9PR03MB84249715C0EAB3002AF8D4F5AF592@DB9PR03MB8424.eurprd03.prod.outlook.com>
References: <DB9PR03MB8424703429D667471856CA23AF5D2@DB9PR03MB8424.eurprd03.prod.outlook.com>
<CABtEb03D+4ocTOyY+FDLUhXW3u9Wave+3m-=HaxQqTKN2=oMYw@mail.gmail.com>
<DB9PR03MB84247045B72E25108B1C764EAF592@DB9PR03MB8424.eurprd03.prod.outlook.com>
<SA1PR22MB4212BE2CE50D42F9A151832DEC592@SA1PR22MB4212.namprd22.prod.outlook.com>
<DB9PR03MB84249715C0EAB3002AF8D4F5AF592@DB9PR03MB8424.eurprd03.prod.outlook.com>
Message-ID: <AABCB662-0B3C-4F63-A90D-8FE798DB5D03@btinternet.com>
Hi Sergio,
I think you will find you can get it on your local Amazon?
You should just be able to spray it on the bones. I cannot vouch for it having never needed to try it out but might be worth a try!
Best wishes, Simon
Simon Moore MIScT, RSci, FLS, ACR
Conservator of Natural Sciences and Cutlery Historian.
www.natural-history-conservation.com
> On 12 Nov 2024, at 19:09, Sergio Montagud <sergio.montagud at gmail.com> wrote:
>
> Thank you, Verity, for your help. I can try the technique you recommended on the larger bones, but it?s difficult to apply to smaller bones, like those of the hand and vertebrae. I?ll give it a try and see the results. Thanks again for your help.
> Simon, OdorXit sounds like a good option, but I think it might be a bit hard to find here in Europe.
>
> Best wishes,
> Sergio
> De: Mathis,Verity L <vmathis at flmnh.ufl.edu>
> Fecha: martes, 12 de noviembre de 2024, 14:15
> Para: Sergio Montagud <sergio.montagud at gmail.com>
> Asunto: RE: [Nhcoll-l] Skeleton preservation
> HI Sergio
> If you don?t mind doing some minor destructive work to the bones, you can always drill the bones with a small bit (using a Dremel or something similar) near the ends and re-soak them in an ammonia solution, that will help release some of the inner oils and fats a little faster. Just a hole at either end might be sufficient. But its not uncommon for us to have to soak large mammal bones for months to get them satisfactorily degreased. A 20% or lower solution shouldn?t damage them, I haven?t seen any evidence of that here in our collection.
> Best of luck
> Verity
> ******************************
> Verity L. Mathis, Ph.D.
> Mammal Collections Manager
> Florida Museum of Natural History
> University of Florida
> 1659 Museum Road
> Gainesville FL 32611
> Phone: (352) 273-2114
> Email: vmathis at flmnh.ufl.edu
> FLMNH Mammals Website: https://www.floridamuseum.ufl.edu/mammals/
> Google Scholar: https://tinyurl.com/vlmathis
> Google Scholar for FLMNH Mammal Collection: https://tinyurl.com/flmnh-mammals
> From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Sergio Montagud
> Sent: Tuesday, November 12, 2024 7:23 AM
> To: Kairo Z <hezhu1 at gmail.com>; nhcoll-l at mailman.yale.edu
> Subject: Re: [Nhcoll-l] Skeleton preservation
> [External Email]
> Dear Kairo,
>
> Thank you for your response. The skeleton is not from a reptile; it?s from an Asiatic lion. The bones appear to be very white and somewhat with fat (I?ve attached a picture), but the smell is too strong to place them in the preservation room. Currently, all the pieces are outside, waiting for the odor to dissipate. I wonder if there is a product that could eliminate the smell, such as ammonia, but after applying (immersion) it for seven consecutive days, I haven?t achieved good results, and I don?t want to risk degrading the bones with chemicals.
> Sergio
> De: Kairo Z <hezhu1 at gmail.com>
> Fecha: viernes, 8 de noviembre de 2024, 17:08
> Para: Sergio Montagud <sergio.montagud at gmail.com>
> Asunto: Re: [Nhcoll-l] Skeleton preservation
> Can you take some pictures of them? Snakes in general do not tend to have a lot of fat in the bone. So I'm wondering it may be due to something else like moisture, or a past preparation technique. Is there any staining?
> On Fri, Nov 8, 2024, 6:06 AM Sergio Montagud <sergio.montagud at gmail.com> wrote:
> Good morning,
> This is a query for those working in skeleton preservation. We have some recently acquired, disarticulated specimens prepared by different taxidermists. The issue is that some of them, especially the larger ones, still emit a very unpleasant odor that we haven?t been able to remove, even by soaking them in water with ammonia. Is there an effective and proven method for eliminating this bad smell from the bones, which I assume is caused by residual fat still trapped in them?
> Thank you very much.
> Sergio Montagud
> --
> ********************************
> Sergio Montagud Alario
> Museu [UV] Hist?ria Natural
> Universitat de Val?ncia
> e-mail: sergio.montagud at uv.es
> ********************************
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
From PalmerL at si.edu Wed Nov 13 14:52:06 2024
From: PalmerL at si.edu (Palmer, Lisa)
Date: Wed, 13 Nov 2024 19:52:06 +0000
Subject: [Nhcoll-l] =?windows-1252?q?FW=3A_Save_The_Date=3A_FOCUS_ON_CONS?=
=?windows-1252?q?ERVATION_2024_=96_Disaster_Risk_Management_for_Cultural_?=
=?windows-1252?q?Heritage?=
In-Reply-To: <PH0PR09MB1102296A23315B0A432DF0765A75A2@PH0PR09MB11022.namprd09.prod.outlook.com>
References: <PH0PR09MB1102296A23315B0A432DF0765A75A2@PH0PR09MB11022.namprd09.prod.outlook.com>
Message-ID: <MW5PR12MB5651854D373CEA5869AEE339D15A2@MW5PR12MB5651.namprd12.prod.outlook.com>
Fyi : Virtual Conference on Disaster Risk Management
From: FEMA-HENTF <fema-hentf at fema.dhs.gov>
Sent: Wednesday, November 13, 2024 1:48 PM.
Subject: Save The Date: FOCUS ON CONSERVATION 2024 ? Disaster Risk Management for Cultural Heritage
External Email - Exercise Caution
Dear HENTF members,
Sharing for your awareness and information. Please find attached a Save the Date: FOCUS ON CONSERVATION 2024 ? DISASTER RISK MANAGEMENT FOR CULTURAL HERITAGE for December 2-5, 2024.
Registration information will follow as soon as available.
With thanks,
Sarah
Sarah Caruso
Disaster Operations Specialist | Heritage Emergency National Task Force
Office of Environmental Planning & Historic Preservation
Resilience
Mobile: (202) 718-2011
Sarah.caruso at fema.dhs.gov<mailto:Sarah.caruso at fema.dhs.gov>
https://culturalrescue.si.edu/who-we-are/hentf
Federal Emergency Management Agency
fema.gov<https://www.fema.gov/>
[cid:image001.png at 01DB35D2.52499580] [cid:image002.png at 01DB35D2.52499580]
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From megan.king at rutgers.edu Wed Nov 13 16:52:49 2024
From: megan.king at rutgers.edu (Megan King)
Date: Wed, 13 Nov 2024 21:52:49 +0000
Subject: [Nhcoll-l] 2nd Call for Co-Chairs & Members: SPNHC NCDC
Message-ID: <CH3PR14MB622755D9F99FDA568F999D31955A2@CH3PR14MB6227.namprd14.prod.outlook.com>
Call for Volunteers to Co-Chair SPNHC NCDC!
Our next meeting is scheduled for Wednesday, December 4th, 2024 at 5pm EST
Are you interested in being more involved with SPNHC? Looking to contribute ideas and facilitate events geared toward emerging professionals and mid-level professionals? Have you attended the SPNHC Emerging Professionals or Networking Luncheons and wondered who helped coordinate the event?
Come join and help co-lead the SPNHC Networking and Career Development Committee (NCDC)! The formerly known Emerging Professionals Committee and the Professional Development Committee recently merged to form this one committee. We are looking for emerging, mid-level or established professionals to co-chair the committee starting in January 2025.
If you are not ready to make a commitment to co-chair, we are also seeking more committee members to support and help drive the committee for next year?s conference in Lawrence, KS and onward. Co-chairs and members of this committee are involved in planning the SPNHC Networking Luncheon event hosted annually at each conference, overseeing the conference travel awards, maintaining the committee?s social media presence, and otherwise finding ways to facilitate networking and professional development of SPNHC members at all career stages. Upcoming goals for this committee also include the development of a mentor-mentee program that would connect mentees to mentors at the annual conference and beyond as well as bi-monthly ?share your expertise? meetings. Any involvement with this committee is a minimal time commitment, but a great opportunity to support the committee and SPNHC overall! Let?s not forget you can also add this to your resume!
General Interest form to join SPNHC NCDC Committee<https://docs.google.com/forms/d/e/1FAIpQLSflSw7Jzh6f4g_5tJqQIsGgUcSI3OZ4xTdZdf1OspJQbKPaHw/viewform?usp=sf_link>: https://docs.google.com/forms/d/e/1FAIpQLSflSw7Jzh6f4g_5tJqQIsGgUcSI3OZ4xTdZdf1OspJQbKPaHw/viewform?usp=sf_link
Please reach out directly to our committee's new leading co-chair, Megan King, if you are interested in becoming a co-chair, being more active in the committee, or for questions about SPNHC NCDC!
Thank you,
SPNHC NCDC Co-Chairs
Megan King (megan.king at rutgers.edu<mailto:megan.king at rutgers.edu>)
Jessie Nakano (Resigning Dec 2024)
Kevin Krajcir (Resigning Dec 2024)
Help a Herbarium! Chrysler Herbarium Giving Link<https://give.rutgersfoundation.org/chrysler-herbarium/7045.html>
Megan R. King | Assistant Curator Education and Outreach | Collections Manager, Chrysler Herbarium (CHRB) | Graduate Student | Rutgers University, New Brunswick | Department of Ecology, Evolution, and Natural Resources | Ecology & Evolution Graduate Program | 14 College Farm Road, New Brunswick, NJ 08901 | Email: megan.king at rutgers.edu | Office: 848-932-4158 | Cell: 201-446-9815
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From E.Nguyen at leibniz-lib.de Thu Nov 14 02:01:50 2024
From: E.Nguyen at leibniz-lib.de (Eileen Nguyen)
Date: Thu, 14 Nov 2024 07:01:50 +0000
Subject: [Nhcoll-l] Job announcement - Curator Entomology (LIB Hamburg)
Message-ID: <00357eac034a4c92820de1fc3a70200d@leibniz-lib.de>
Dear all,
We are currently searching for a Curator to manage the Hemimetabola Collection of the LIB Hamburg. Find the complete job announcement here: https://8101202752.karriereportal.cloud/job/2024-20-Curator-Entomology-(m_f_d)---Hamburg
We would be glad if you could share this mail and spread the word.
Kind regards,
Eileen
Eileen Nguyen
Technical Assistance Section Lepidoptera & Trichoptera, Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 - 714
e.nguyen at leibniz-lib.de<mailto:e.nguyen at leibniz-lib.de>
www.leibniz-lib.de
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From Lennart.Lennuk at loodusmuuseum.ee Thu Nov 14 05:49:37 2024
From: Lennart.Lennuk at loodusmuuseum.ee (Lennart Lennuk)
Date: Thu, 14 Nov 2024 10:49:37 +0000
Subject: [Nhcoll-l] literature about gamma-ray damaging effect on DNA in NHCs
Message-ID: <952d3e778bb64e4696f487b54a600af1@loodusmuuseum.ee>
Hi!
Is there any literatuure about gamma-ray damaging effect on DNA in natural history collections?
Best!
Lennart Lennuk
Head of collections
Estonian Museum of Natural History
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From bethanypalumbo at gmail.com Thu Nov 14 06:16:03 2024
From: bethanypalumbo at gmail.com (Bethany Palumbo)
Date: Thu, 14 Nov 2024 12:16:03 +0100
Subject: [Nhcoll-l] Skeleton preservation
In-Reply-To: <DB9PR03MB8424703429D667471856CA23AF5D2@DB9PR03MB8424.eurprd03.prod.outlook.com>
References: <DB9PR03MB8424703429D667471856CA23AF5D2@DB9PR03MB8424.eurprd03.prod.outlook.com>
Message-ID: <CAPVvR4QfuD08bRbkVsRQFenBq3XDauzd5_00KY_geTBbNUvbTQ@mail.gmail.com>
Hi Sergio,
I understand your plight, smelly bones are something we all have to deal
with at some point in this field!
Personally I don't recommend soaking skeletal material in ammonia as
ammonia will break down the collagen, potentially resulting in
brittleness and delamination. I have seen this first hand. I have had
success using a weak ammonia solution (4-10%) in water, scrubbed onto the
oily surface with a tooth brush. This creates a soap scum that can be wiped
off with paper towels. Other safe solvents that might offer some odor
relief include ethanol or acetone wiped over the surface. Also
investigate hot vapour degreasing which is used in some museums to remove
old and fresh fatty secretions from bones. Correct me if I am wrong, but I
think Berlin have one they use for big mammals.
All the best,
Bethany Palumbo,
Head of Conservation Unit,
Museum of Natural History Denmark
On Fri, 8 Nov 2024 at 13:07, Sergio Montagud <sergio.montagud at gmail.com>
wrote:
> Good morning,
>
> This is a query for those working in skeleton preservation. We have some
> recently acquired, disarticulated specimens prepared by different
> taxidermists. The issue is that some of them, especially the larger ones,
> still emit a very unpleasant odor that we haven?t been able to remove, even
> by soaking them in water with ammonia. Is there an effective and proven
> method for eliminating this bad smell from the bones, which I assume is
> caused by residual fat still trapped in them?
>
> Thank you very much.
>
> Sergio Montagud
>
> --
>
> ********************************
>
> Sergio Montagud Alario
>
> Museu [UV] Hist?ria Natural
>
> Universitat de Val?ncia
>
> e-mail: sergio.montagud at uv.es
>
> ********************************
>
>
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
>
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From info at naturhistorische-konservierung.de Thu Nov 14 06:38:39 2024
From: info at naturhistorische-konservierung.de (Fabian Neisskenwirth)
Date: Thu, 14 Nov 2024 12:38:39 +0100
Subject: [Nhcoll-l] Skeleton preservation
In-Reply-To: <CAPVvR4QfuD08bRbkVsRQFenBq3XDauzd5_00KY_geTBbNUvbTQ@mail.gmail.com>
References: <DB9PR03MB8424703429D667471856CA23AF5D2@DB9PR03MB8424.eurprd03.prod.outlook.com>
<CAPVvR4QfuD08bRbkVsRQFenBq3XDauzd5_00KY_geTBbNUvbTQ@mail.gmail.com>
Message-ID: <d79a08bf-f858-4c57-b8e6-3faddd01b588@naturhistorische-konservierung.de>
Dear Sergio, dear Beth,
the Museum in Berlin, as well as in Bern, were the first prototype was
tested, are using a machine that is using methylene chloride (DCM)
applied as vapor in a vacuum chamber.
There is a previous publication (only in German) that goes very deep in
the matter of bone preparation and de-greasing:
*Peter Niederklopfer and Martin Troxler, Knochenpra?paration ? Handbuch
fu?r Praktiker **(Rothenbrunnen: Romei AG), 2001*
This technology is very successful in de-greasing bones extremely
effectively, but there is still no publication on the method. If you are
interested in the mater, get in touch with Martin Troxler
(Chief-Preparator of the natural history museum in Bern) directly.
Please write to him if possible in German. The manufacturer behind the
technology is the HEMO GmbH: k.trautz at hemo-gmbh.de
*
*
All the best,
Am 14.11.24 um 12:16 schrieb Bethany Palumbo:
> Hi Sergio,
>
> I understand your?plight, smelly bones are something we all have to
> deal with at some?point in this field!
>
> Personally I don't recommend soaking skeletal material in ammonia as
> ammonia will break down the collagen, potentially resulting in
> brittleness?and delamination. I have seen this first hand. I have had
> success using a weak?ammonia?solution (4-10%) in water,?scrubbed onto
> the oily surface with a tooth brush. This creates a soap scum?that can
> be wiped off with paper towels. Other safe solvents that might offer
> some odor relief include ethanol or acetone wiped over the surface.
> Also investigate?hot vapour degreasing which is used in some museums
> to remove old and fresh fatty secretions from bones. Correct me if I
> am wrong, but I think Berlin have one they use for big mammals.
>
> All the best,
>
> Bethany Palumbo,
> Head of Conservation Unit,
> Museum of Natural History Denmark
>
>
>
> On Fri, 8 Nov 2024 at 13:07, Sergio Montagud
> <sergio.montagud at gmail.com> wrote:
>
> Good morning,
>
> This is a query for those working in skeleton preservation. We
> have some recently acquired, disarticulated specimens prepared by
> different taxidermists. The issue is that some of them, especially
> the larger ones, still emit a very unpleasant odor that we haven?t
> been able to remove, even by soaking them in water with ammonia.
> Is there an effective and proven method for eliminating this bad
> smell from the bones, which I assume is caused by residual fat
> still trapped in them?
>
> Thank you very much.
>
> Sergio Montagud
>
> --
>
> ********************************
>
> Sergio Montagud Alario
>
> Museu [UV] Hist?ria Natural
>
> Universitat de Val?ncia
>
> e-mail: sergio.montagud at uv.es <mailto:sergio.montagud at uv.es>
>
> ********************************
>
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
>
>
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. Seehttp://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
--
*Fabian Neisskenwirth*
Restaurator/Pr?parator
Waterfohrstr. 20
DE-45139 Essen
Tel: +49 (0) 1573 2778729
www.naturhistorische-konservierung.de
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From tiffany-adrain at uiowa.edu Fri Nov 15 11:08:23 2024
From: tiffany-adrain at uiowa.edu (Adrain, Tiffany S)
Date: Fri, 15 Nov 2024 16:08:23 +0000
Subject: [Nhcoll-l] Value and success metrics for NH collections
Message-ID: <MW4PR04MB7379340E5C46CD1326FE215A92242@MW4PR04MB7379.namprd04.prod.outlook.com>
Hi all,
As part of my strategic planning for the University of Iowa Paleontology Repository, I'm looking to expand "success" and "value" metrics to continue to advocate for support of collections.
Anyone willing to share your metrics here? We've traditionally used yearly metrics such as:
*
Number of loans/loaned specimens/geographic coverage of borrowers
*
Number of specimens donated
*
Number of published specimen citations
*
Number of visitor days
*
Number of student interns supported
*
Number of specimens/lots catalogued/digitized
*
Number of ID and research enquiries (in-person and online)
*
Number of outreach events attended
*
Amount received in grant funding/financial donations
What other metrics can I include, especially relating to use and value to institutional parent?
Looking forward to your ideas - thanks!
Tiffany
Tiffany Adrain (pronouns: she/her/hers)
Collections Manager, Paleontology Repository
Instructor, Museum Studies Certificate Program
Department of Earth & Environmental Sciences
University of Iowa
115 Trowbridge Hall
Iowa City, Iowa, 52242
phone: 319 335 1822
fax: 319 335 1821
email: tiffany-adrain at uiowa.edu<mailto:tiffany-adrain at uiowa.edu>
website: <http://www.uiowa.edu/~geology/paleo> https://ees.uiowa.edu/
[cid:d707dc19-fd40-465d-845a-b10b52767939][cid:eff4e719-d9da-4ba9-bf0e-033666ea42bc]
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From troberts at nhm.org Fri Nov 15 12:38:36 2024
From: troberts at nhm.org (Trina Roberts)
Date: Fri, 15 Nov 2024 09:38:36 -0800
Subject: [Nhcoll-l] Value and success metrics for NH collections
In-Reply-To: <MW4PR04MB7379340E5C46CD1326FE215A92242@MW4PR04MB7379.namprd04.prod.outlook.com>
References: <MW4PR04MB7379340E5C46CD1326FE215A92242@MW4PR04MB7379.namprd04.prod.outlook.com>
Message-ID: <CA+e+DvA-VCSe8g7wmhWHpWvtxX_YtbzCmjdV3u2z10K=06ifPA@mail.gmail.com>
Hi Tiffany and all,
I also use whatever metrics I can get easily from our external data-sharing
partners. Right now, that means I'm regularly reporting an estimate of
download events and records downloaded from iDigBio and GBIF (the two of
them don't report quite the same things, so I have to do some estimating
to mash them together). I'd previously also included VertNet, but their
use metrics seem to be defunct. I hope to be able to expand this someday
to include BHL, MorphoSource, Calisphere, Internet Archive ... but I don't
know yet what will be possible. Because we do spend a good bit of effort
on digitization, it's been helpful to have use metrics to report for the
digital collection, alongside those for loans and use of actual physical
objects that our board was already more familiar with.
I have been reporting loans closed as well as new loans opened, to try to
capture some sense of the whole loan life cycle in the metrics. Plus,
sometimes tracking down and closing old loans takes quite a lot of effort,
and that activity wasn't otherwise clear in our reports.
--Trina
--
Trina E. Roberts, Ph.D.
Associate VP, Collections
Natural History Museums of Los Angeles County
213-763-3330
troberts at nhm.org
she, her, hers
On Fri, Nov 15, 2024 at 8:08?AM Adrain, Tiffany S <tiffany-adrain at uiowa.edu>
wrote:
> Hi all, As part of my strategic planning for the University of Iowa
> Paleontology Repository, I'm looking to expand "success" and "value"
> metrics to continue to advocate for support of collections. Anyone willing
> to share
>
> Hi all,
>
> As part of my strategic planning for the University of Iowa Paleontology
> Repository, I'm looking to expand "success" and "value" metrics to continue
> to advocate for support of collections.
>
> Anyone willing to share your metrics here? We've traditionally used yearly
> metrics such as:
>
> - Number of loans/loaned specimens/geographic coverage of borrowers
> - Number of specimens donated
> - Number of published specimen citations
> - Number of visitor days
> - Number of student interns supported
> - Number of specimens/lots catalogued/digitized
> - Number of ID and research enquiries (in-person and online)
> - Number of outreach events attended
> - Amount received in grant funding/financial donations
>
> What other metrics can I include, especially relating to use and value to
> institutional parent?
>
> Looking forward to your ideas - thanks!
>
> Tiffany
>
> Tiffany Adrain (pronouns: she/her/hers)
> Collections Manager, Paleontology Repository
> Instructor, Museum Studies Certificate Program
> Department of Earth & Environmental Sciences
> University of Iowa
> 115 Trowbridge Hall
> Iowa City, Iowa, 52242
>
> phone: 319 335 1822
> fax: 319 335 1821
> email: tiffany-adrain at uiowa.edu
> website:
> <https://urldefense.com/v3/__http://www.uiowa.edu/*geology/paleo__;fg!!Ljrh0eb5atLX!sajHW8wdwQQD-J6caTUOPlUECQrEmJYrPg-n5UfDsBPdmLCQZDY-4q8rsy_EVtlGtlt2wnenex3zPNubGbv08NvB$>
> https://ees.uiowa.edu/
> <https://urldefense.com/v3/__https://ees.uiowa.edu/__;!!Ljrh0eb5atLX!sajHW8wdwQQD-J6caTUOPlUECQrEmJYrPg-n5UfDsBPdmLCQZDY-4q8rsy_EVtlGtlt2wnenex3zPNubGbqufGPS$>
>
>
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
>
> https://urldefense.com/v3/__https://mailman.yale.edu/mailman/listinfo/nhcoll-l__;!!Ljrh0eb5atLX!sajHW8wdwQQD-J6caTUOPlUECQrEmJYrPg-n5UfDsBPdmLCQZDY-4q8rsy_EVtlGtlt2wnenex3zPNubGXDvL0EM$
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See
> https://urldefense.com/v3/__http://www.spnhc.org__;!!Ljrh0eb5atLX!sajHW8wdwQQD-J6caTUOPlUECQrEmJYrPg-n5UfDsBPdmLCQZDY-4q8rsy_EVtlGtlt2wnenex3zPNubGUCdZoLY$
> for membership information.
> Advertising on NH-COLL-L is inappropriate.
>
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From kjakymec at fsu.edu Fri Nov 15 13:28:19 2024
From: kjakymec at fsu.edu (Kalina Jakymec)
Date: Fri, 15 Nov 2024 18:28:19 +0000
Subject: [Nhcoll-l] Public Participation in Digitization of Biodiversity
Collections Course (Dec. 16-19)
Message-ID: <SJ2P220MB1620CB6B97C8CA6AFC86CCADB6242@SJ2P220MB1620.NAMP220.PROD.OUTLOOK.COM>
Hello!
Friendly reminder that applications close November 20th for the free, online course Public Participation in Digitization of Biodiversity Collections taking place December 16-19 (Monday-Thursday).
Apply at: https://forms.gle/u2anwVHChKsPQoZA9
This course is focused on public participation in science as it relates to digitization and research using biodiversity specimens. Public participation in science is sometimes referred to as citizen science, community science, or crowdsourcing. For more information on learning objectives, see the course tile at https://digitizationacademy.org/courses. This course is targeted at those already associated with a biodiversity collection, such as student technicians, collections managers, curators, affiliated educators, or administrators.
The course will occur from December 16?19 (Monday?Thursday) between 11:00 am and 3:00 pm Eastern. Participants can expect to spend three hours per day in synchronous meetings and as much as two additional hours of preparation time per day outside class. So this is about a 20-hour time commitment.
The course will be delivered in English. Those interested in participating from outside the U.S. may apply.
Applications<https://forms.gle/u2anwVHChKsPQoZA9> are due by 10:00 am ET on Wednesday, November 20, 2024.
Questions can be directed to Kalina Jakymec (kjakymec at fsu.edu<mailto:kjakymec at fsu.edu>; iDigBio?s Workforce Development Manager) and Austin Mast (amast at fsu.edu<mailto:amast at fsu.edu>; Director of iDigBio?s Digitization, Workforce Development, and Citizen Science Domain).
Please consider sharing this announcement with others who might benefit from it. Thanks!
Kalina Jakymec
iDigBio Workforce Development Manager
Florida State University
digitizationacademy.org | idigbio.org
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From trouille at zooniverse.org Fri Nov 15 14:31:36 2024
From: trouille at zooniverse.org (Laura Trouille)
Date: Fri, 15 Nov 2024 14:31:36 -0500
Subject: [Nhcoll-l] CSTP Special Collection Call for Abstracts:
Participatory Science in GLAMs
Message-ID: <CAAhAQTHvbedmYnhzk9f6zQqaHPCOramz8rjf7nL_Tq7itvOFHw@mail.gmail.com>
Natural History Collections NHCOLL-L Community,
We are delighted to announce a call for abstracts for a new Citizen
Science: Theory and Practice (CSTP) Journal Special Collection, titled
?Lessons, Challenges, and Opportunities in Participatory Science from a
Galleries, Libraries, Archives, and Museums (GLAM) Perspective.? This
Collection aims to advance best practices in participatory science in these
vital GLAM spaces and beyond.
We invite abstracts for submissions in the following CSTP categories
<https://theoryandpractice.citizenscienceassociation.org/about/submissions>:
Research Papers, Review and Synthesis, Papers, Case Studies, Essays,
Methods Papers, Meeting Reports, Editorials
Abstract submissions via this Google Form:
https://forms.gle/tZmaSEPixgAUUxGaA
Deadline: February 28, 2025.
More information:
https://participatorysciences.org/2024/11/07/call-for-abstracts-galleries-libraries-archives-and-museums-perspectives/
For any inquiries, please contact us at
CSTP-SpecialCollection at zooniverse.org
Special Collection Editors:
-
Darlene Cavalier, Arizona State University, SciStarter
-
Thomas Kaarsted, University Library of Southern Denmark and the SDU
Citizen Science Knowledge Center
-
Mia Ridge, British Library
-
David Sittenfeld, Museum of Science, Boston
-
Laura Trouille, The Adler Planetarium, Zooniverse, Northwestern
University
--
Dr. Laura Trouille
Vice President of Science Engagement and Zooniverse PI
The Adler Planetarium
--
Adler Planetarium
1300 S. DuSable Lake Shore Dr
<https://www.google.com/maps/place/1300+S+Lake+Shore+Dr,+Chicago,+IL+60605/@41.8663303,-87.6085608,17z/data=!3m1!4b1!4m5!3m4!1s0x880e2b6fb66ed3b5:0x545000d2a845d292!8m2!3d41.8663303!4d-87.6063721>.
Chicago, IL 60605
<https://www.google.com/maps/place/1300+S+Lake+Shore+Dr,+Chicago,+IL+60605/@41.8663303,-87.6085608,17z/data=!3m1!4b1!4m5!3m4!1s0x880e2b6fb66ed3b5:0x545000d2a845d292!8m2!3d41.8663303!4d-87.6063721>
adlerplanetarium.org <https://www.adlerplanetarium.org>
instagram
<https://www.instagram.com/adlerplanet/> | twitter
<https://twitter.com/AdlerPlanet> | facebook
<http://fb.com/adlerplanetarium>
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From simmons.johne at gmail.com Sun Nov 17 21:40:18 2024
From: simmons.johne at gmail.com (John E Simmons)
Date: Sun, 17 Nov 2024 21:40:18 -0500
Subject: [Nhcoll-l] Flood in ornithology collection
Message-ID: <CAF7GCDa30foOFV_L=sOzdSaavN_aQVPamY=dWDUHJW-_jeX9rA@mail.gmail.com>
On 13 November2024, heavy rains in Bogot? caused a portion of the roof of
the Instituto de Ciencias Naturales (Natural Science Institute) to fail,
which flooded the bird collections in the Department of Ornithology. The
following newspaper articles from the newspapers *El Tiempo* and *El
Espectador* (English first, followed by the originals in Spanish) detail
the damage and include videos of the damage and the beginning of the
clean-up operation and other information.
Emailed *letters of support for funding* for the ICN would be greatly
appreciated. Please address emails to the ICN director, Dr. Gonzalo Andrade
at inscien_bog at unal.edu.co or mgandradec at unal.edu.co and to the Rector of
the Universidad Nacional, Dr. Leopoldo M?nera, lamunerar at unal.edu.co or
rectoria at unal.edu.co
*Alert for possible collapse of the roof of the Institute of Sciences of
the National University *
*El Tiempo*, Bogot?
The Institute of Natural Sciences of the National University is at risk of
collapse after the rains of the last few days. A collection of 1,800
species of birds, safeguarded for research, is in danger. #ElTiempo
<https://www.youtube.com/hashtag/eltiempo>
*It rained and flooded the most important biological collection of birds in
Colombia again *
*The recent rains put at risk again the bird collection of the Institute of
Natural Sciences (ICN) of the National University of Colombia, one of the
most important in the country.*
*El Espectador*, Bogot?
13 de noviembre de 2024 - 12:45 p. m.
The recent rains have once again affected the bird collection at the
Institute of Natural Sciences (ICN) of the National University of Colombia. The
building of this institution, which houses one of the most important and
complete natural history collections in the country, has been a cause of
concern among scientists and researchers, who have been warning for several
years about the damage that unique species of great scientific value could
suffer due to water leaks and the humidity it would cause.
?As always, the main problem is the capacity of the drainage channel above
the bird collection, so the water came through the roof again, as it did at
the beginning of this year, even though we had already corrected the gutter
problem,? says Gonzalo Andrade, director of the ICN. Andrade explained that
the drainage pipes cannot handle the volume of water that fell, causing the
channel to overflow and the water to enter the bird collection again, as
has happened on other occasions.
However, the professor confirms that, despite the emergency, no damage has
been detected to the specimens in the collection. ?The specimens are
already drying, as we did on the previous occasion, taking all the
necessary measures to protect them despite the residual humidity. The
furniture is already dry thanks to the intensive use of fans, among other
measures,? says Andrade. The University sent hydraulic engineers and
architects to assess the situation. As soon as it is safe, because the
building?s roof is still wet from the rain, these people will climb onto
the roof to begin repairs.
The corrections will include the installation of five additional outlets in
the channel beam to drain water directly to the ground and prevent it from
accumulating. To understand the importance of this collection, it is enough
to say that an individual diving duck is preserved there, a species that is
currently categorized as extinct. ?This collection represents all the bird
species present in Colombia and is kept at the ICN, where knowledge of the
country's avian biodiversity is preserved,? says Andrade.
*And what about the building promised by the Ministry of the Environment?*
On July 5, the Ministry of the Environment announced an investment of 59
billion pesos to preserve the biological collections of the ICN and the
Natural History Museum of the National University. But this is only one of
three stages. The Ministry of the Environment is financing the first, which
includes the construction of two buildings for the National Herbarium,
offices, research laboratories, and work spaces related to the herbarium
and the institute's botanical researchers. The work is expected to begin in
February of next year, since the necessary agreements and permits are in
place.
Stage 2, which has not yet been financially finalized, aims to create
infrastructure for the zoology, archaeology, and paleontology collections,
and work spaces for professors and researchers in these areas. Finally,
Stage 3 will focus on the creation of an additional building to house the
Natural History Museum, with technical studies already underway. To obtain
funding for Stages 2 and 3, it is necessary to complete all technical and
infrastructure studies until reaching Phase 3, similar to the process of
the first stage. ?It is key to clarify that ICAN does not have its
infrastructure problem completely resolved, since only funding for Stage 1
has been secured; it is still pending to obtain the resources for Stages 2
and 3,? says Professor Andrade.
That is, in the first stage of the project, which is about to begin, only
the National Herbarium will be included, but the Institute of Natural
Sciences has a total of 13 collections: in addition to the herbarium, there
are 10 zoological collections, one paleontological collection and one
archaeological collection. These other collections are planned for stage 2.
Stage 2 is estimated to cost approximately 60 billion pesos. Furthermore,
based on the experience of stage 1, the architects estimate that stage 3
could cost between 40 and 45 billion pesos, although the final value will
also depend on further analysis. For both stages, there is no guaranteed
financing.
Earlier this year, three scientific societies representing researchers from
a variety of disciplines wrote an open letter expressing ?their concern
about the lack of support facing biological collections, including those in
public, private, government, and academic museums and herbaria.? These are
the Society for the Study of Evolution (SSE), the American Society of
Naturalists (ASN), and the Society of Systematic Biologists, three of the
oldest and most important scientific associations in the world.
The reason for sending this open letter was three specific cases, although
?their concern is broader,? which show the lack of support for these
important resources for science: ?The decision to relocate the Herbarium
located at Duke University (United States), the infrastructure problems at
the Institute of Natural Sciences (ICN) at the National University of
Colombia, and the decision to close the Evolutionary Biology Unit at the
South Australian Museum.?
The case of the ICN in Colombia was reported by *El Espectador* in this
article entitled ?The fractures of the Institute of Natural Sciences of the
National University,? which explains the risk faced by the more than three
million biological specimens housed in the collection, which include
extinct species and whose only record is held at this institute:
https://www.elespectador.com/educacion/las-fracturas-del-instituto-de-ciencias-naturales-de-la-universidad-nacional/
*Alerta por posible colapso del techo del Instituto de Ciencias de la U.
Nacional*
https://www.youtube.com/watch?v=f33tlTocM_Y
*El Tiempo*, Bogot?
En riesgo de colapso est? el Instituto de Ciencias Naturales de la
Universidad Nacional tras las lluvias de los ?ltimos d?as. Una colecci?n de
1.800 especies de aves, salvaguardadas para investigaci?n, est? en peligro.
*Llovi? y se volvi? a inundar la colecci?n biol?gica de aves m?s importante
de Colombia*
*Las recientes lluvias volvieron a poner en riesgo la colecci?n de aves del
Instituto de Ciencias Naturales (ICN) de la Universidad Nacional de
Colombia, una de las m?s importantes del pa?s.*
https://www.elespectador.com/ciencia/llovio-y-se-volvio-a-inundar-la-coleccion-biologica-de-aves-mas-importante-de-colombia/
El Espectatador, Bogot?
13 de noviembre de 2024 - 12:45 p. m.
Las ?ltimas lluvias volvieron a afectar la colecci?n de aves del Instituto
de Ciencias Naturales (ICN) de la Universidad Nacional de Colombia. El
edificio de esta entidad, en donde se resguarda una de las colecciones de
historia natural m?s importantes y completas del pa?s, ha sido objeto de
preocupaci?n entre cient?ficos e investigadores, quienes alertan desde hace
varios a?os sobre los da?os que podr?an sufrir especies ?nicas y de gran
valor cient?fico debido a las filtraciones de agua y a la humedad que estas
provocan.
?Como siempre, el principal problema es la capacidad que tiene el canal que
est? encima de la colecci?n de aves, entonces nos volvi? a caer la cascada,
esa que tuvimos a principios de este a?o, a pesar de que entonces ya
hab?amos hecho una correcci?n?, se?ala Gonzalo Andrade, director del ICN.
Andrade explica que las tuber?as de desag?e no pueden manejar el volumen de
agua que cay?, provocando que la canal se desborde y el agua entre
nuevamente en la colecci?n de aves, tal como ha sucedido otras ocasiones.
Sin embargo, el profesor confirma que, pese a la emergencia, no se han
detectado afectaciones en los espec?menes de la colecci?n. ?Ya se est?n
secando, como hicimos en la ocasi?n anterior, tomando todas las medidas
necesarias para protegerla a pesar de la humedad residual. Los muebles ya
est?n secos gracias al uso intensivo de ventiladores, entre otras medidas?,
dice Andrade. La Universidad envi? a ingenieros hidr?ulicos y arquitectos
para evaluar la situaci?n. Tan pronto sea seguro, debido a que las tejas
del edificio est?n a?n h?medas por la lluvia, estas personas se subir?n al
techo para comenzar las reparaciones.
Las correcciones incluir?n la instalaci?n de cinco salidas adicionales en
la viga canal para drenar el agua directamente al suelo y evitar que se
acumule. Para entender la importancia de esta colecci?n, basta decir que
all? se encuentra conservado un individuo de pato zambullidor, una especie
que actualmente est? categorizada como extinta. ?Esta colecci?n representa
a todas las especies de aves presentes en Colombia y se resguarda en el
ICN, donde se conserva el conocimiento de la biodiversidad aviar del pa?s?,
dice Andrade.
*?Y el edificio que prometi? Minambiente?*
El pasado 5 de julio, el Ministerio de Ambiente anunci? una inversi?n de
$59.000 millones para preservar las colecciones biol?gicas del ICN y el
Museo de Historia Natural de la Universidad Nacional. Pero se trata apenas
de una de tres etapas. El Ministerio de Ambiente est? financiando la
primera, que incluye la construcci?n de dos edificios destinados al
Herbario Nacional, oficinas, laboratorios de investigaci?n, y espacios de
trabajo relacionados con el herbario y los investigadores bot?nicos del
instituto. Se espera que la obra comience en febrero del pr?ximo a?o, ya
que se cuenta con los convenios y permisos necesarios.
La etapa 2, que a?n no tiene cierre financiero, tiene como objetivo crear
infraestructura para las colecciones de zoolog?a, arqueolog?a,
paleontolog?a, y espacios de trabajo para los profesores e investigadores
en estas ?reas. Finalmente, la etapa 3 se enfocar? en la creaci?n de un
edificio adicional para albergar el Museo de Historia Natural, con estudios
t?cnicos ya en marcha. Para obtener el financiamiento de las etapas 2 y 3,
es necesario completar todos los estudios t?cnicos y de infraestructura
hasta alcanzar la fase 3, similar al proceso de la primera etapa. ?Es clave
aclarar que el ICAN no tiene su problema de infraestructura completamente
resuelto, ya que solo se ha asegurado la financiaci?n para la etapa 1; a?n
queda pendiente obtener los recursos para las etapas 2 y 3?, dice el
profesor Andrade.
Es decir, en la primera etapa del proyecto, a punto de comenzar, solo se
incluir? el Herbario Nacional, pero el Instituto de Ciencias Naturales
tiene un total de 13 colecciones: adem?s del herbario, hay 10 de zoolog?a,
una de paleontolog?a y una de arqueolog?a. Estas otras colecciones est?n
previstas para la etapa 2. Se estima que la etapa 2 tendr? un costo
aproximado de 60 mil millones. Adem?s, con base en la experiencia de la
etapa 1, los arquitectos calculan que la etapa 3 podr?a costar entre 40 mil
y 45 mil millones de pesos, aunque el valor definitivo tambi?n depender? de
m?s analisis. Para ambas etapas, no hay financiaci?n segura.
A principios de este a?o, tres sociedades cient?ficas que agrupan a
investigadores de diversas disciplinas escribieron una carta abierta para
manifestar ?su preocupaci?n por la falta de apoyo por la que est?n pasando
las colecciones biol?gicas, incluyendo las que se encuentran en museos y
herbarios p?blicos, privados, de los gobiernos o acad?micos?. Se trata de
la Sociedad para el Estudio de la Evoluci?n (SSE, por sus siglas en
ingl?s), la Sociedad Americana de Naturalistas (Amnat) y la Sociedad de
Bi?logos Sistem?ticos, tres de las asociaciones cient?ficas m?s antiguas e
importantes del mundo.
Su motivaci?n para enviar esta carta abierta se dio por tres casos
puntuales, aunque ?su preocupaci?n es m?s amplia?, en los que se evidencia
la falta de apoyo para estos importantes recursos para la ciencia. ?La
decisi?n de reubicar el Herbario que se encuentra en la Universidad de Duke
(Estados Unidos), los problemas de infraestructura en el Instituto de
Ciencias Naturales (ICN) en la Universidad Nacional de Colombia, y la
decisi?n de cerrar la Unidad de Biolog?a Evolutiva del Museo del Sur de
Australia?.
El caso del ICN, en Colombia, fue rese?ado por El Espectador en esta nota
titulada *Las fracturas del Instituto de Ciencias Naturales de la
Universidad Nacional*
<https://www.elespectador.com/educacion/las-fracturas-del-instituto-de-ciencias-naturales-de-la-universidad-nacional/>*,
*en la que se explica el riesgo en el que se encuentran los m?s de tres
millones de ejemplares biol?gicos que alberga la colecci?n, que incluyen
especies extintas y cuyo ?nico registro se tiene en este instituto.
https://www.elespectador.com/ciencia/llovio-y-se-volvio-a-inundar-la-coleccion-biologica-de-aves-mas-importante-de-colombia/
John E. Simmons
Writer and Museum Consultant
Museologica
*and*
Investigador Asociado, Departamento de Ornitologia
Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima
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From telabedz at gmail.com Mon Nov 18 09:58:20 2024
From: telabedz at gmail.com (Thomas Labedz)
Date: Mon, 18 Nov 2024 08:58:20 -0600
Subject: [Nhcoll-l] Nebraska Herbarium Curator position
Message-ID: <CAM2g07wyQyfbq2JP=r6sM-Scr7pM+n-SGQ0d1qz7+inNu5GEYQ@mail.gmail.com>
The Bessey Herbarium of the University of Nebraska State Museum ( Botany
: Science & Culture | Botany : Collections & Research : University of
Nebraska State Museum of Natural History
<https://museum.unl.edu/collections/botany/index.html> ) is seeking a
Curator of Botany. The position announcement can be found here ( University
of Nebraska-Lincoln | Curator, Bessey Herbarium
<https://employment.unl.edu/postings/94496> ).
Thomas E. Labedz
Collections Manager (retired)
Bessey Herbarium
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From abentley at ku.edu Mon Nov 18 09:58:29 2024
From: abentley at ku.edu (Bentley, Andrew Charles)
Date: Mon, 18 Nov 2024 14:58:29 +0000
Subject: [Nhcoll-l] SPNHC 2025 - May 27-31, 2025 - Biodiversity Institute,
University of Kansas
Message-ID: <SN7PR01MB80208914A557F256835EA002B2272@SN7PR01MB8020.prod.exchangelabs.com>
The University of Kansas Biodiversity Institute and Natural History Museum are pleased to host the 40th Annual Meeting of the Society for the Preservation of Natural History Collections (SPNHC) from May 27-31, 2025. We look forward to welcoming you to Lawrence, Kansas, USA. We are aware that these are not the originally advertised dates and that this now conflicts with the AIC meeting happening at the same time in Minneapolis but conflicts beyond our control relating to accommodations have necessitated the date shift. We hope that you will still join us.
The conference website is now live at spnhc2025.ku.edu<http://www.spnhc2025.ku.edu> which contains preliminary information on Lawrence, transportation and travel options, and a tentative agenda for the meeting. This information will be updated with more details concerning accommodations, registration, abstract submission, and more become available.
With the launch of the website, we have also opened the call for sessions, symposia and workshops<https://spnhc2025.ku.edu/symposia-sessions-workshops>. If you are interested in chairing or convening a session or symposium, please complete the Google form<https://forms.gle/oe3h1RbUDvcNoSCK8>. If you wish to run a workshop, please contact us. Confirmed sessions will be posted on the website in due course. Deadline for submissions is January 10.
Additionally, applications for Travel Grants<https://spnhc2025.ku.edu/travel-grants> are now open. Please complete the applicable form for Fitzgerald or Christine Allen travel grants. Separate calls will go out shortly from the SPNHC Recognition and Grants Committee. Deadline for submissions is January 31.
We will also be relying heavily on generous support from vendors and sponsors<https://spnhc2025.ku.edu/vendors-sponsors> to keep costs as low as possible. We will be approaching traditional and local vendors and sponsors for support but would be grateful for any leads the community may have for additional contacts. Many opportunities exist at various levels as outlined in the conference prospectus document available on request as a PDF.
More details on accommodation options (both hotel and KU apartments), registration and abstract submission will be forthcoming soon.
Please contact us with any questions or comments at spnhc2025 at ku.edu<mailto:spnhc2025 at ku.edu>.
We look forward to seeing you in June 2025.
Thanks
Andrew Bentley
On behalf of the Local Organizing Committee
A : A : A :
}<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?>
V V V
Andy Bentley
Ichthyology Collection Manager
University of Kansas
Biodiversity Institute
Dyche Hall
1345 Jayhawk Boulevard
Lawrence, KS, 66045-7561
USA
Tel: (785) 864-3863<tel:%28785%29%20864-3863>
Fax: (785) 864-5335<tel:%28785%29%20864-5335>
Email: abentley at ku.edu<mailto:abentley at ku.edu>
ORCID: https://orcid.org/0000-0002-3093-1258
http://ichthyology.biodiversity.ku.edu<http://ichthyology.biodiversity.ku.edu/>
A : A : A :
}<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?>
V V V
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From abentley at ku.edu Mon Nov 18 10:33:20 2024
From: abentley at ku.edu (Bentley, Andrew Charles)
Date: Mon, 18 Nov 2024 15:33:20 +0000
Subject: [Nhcoll-l] SPNHC 2025 - May 27-31, 2025 - Biodiversity Institute,
University of Kansas
In-Reply-To: <SN7PR01MB80208914A557F256835EA002B2272@SN7PR01MB8020.prod.exchangelabs.com>
References: <SN7PR01MB80208914A557F256835EA002B2272@SN7PR01MB8020.prod.exchangelabs.com>
Message-ID: <SN7PR01MB8020940B3001A63F093189C8B2272@SN7PR01MB8020.prod.exchangelabs.com>
Apologies. We address should be https://spnhc2025.ku.edu/
Andy
A : A : A :
}<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?>
V V V
Andy Bentley
Ichthyology Collection Manager
University of Kansas
Biodiversity Institute
Dyche Hall
1345 Jayhawk Boulevard
Lawrence, KS, 66045-7561
USA
Tel: (785) 864-3863<tel:%28785%29%20864-3863>
Fax: (785) 864-5335<tel:%28785%29%20864-5335>
Email: abentley at ku.edu<mailto:abentley at ku.edu>
ORCID: https://orcid.org/0000-0002-3093-1258
http://ichthyology.biodiversity.ku.edu<http://ichthyology.biodiversity.ku.edu/>
A : A : A :
}<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?>
V V V
________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Bentley, Andrew Charles <abentley at ku.edu>
Sent: Monday, November 18, 2024 8:58 AM
To: nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: [Nhcoll-l] SPNHC 2025 - May 27-31, 2025 - Biodiversity Institute, University of Kansas
The University of Kansas Biodiversity Institute and Natural History Museum are pleased to host the 40th Annual Meeting of the Society for the Preservation of Natural History Collections (SPNHC) from May 27-31, 2025. We look forward to welcoming you to Lawrence, Kansas, USA. We are aware that these are not the originally advertised dates and that this now conflicts with the AIC meeting happening at the same time in Minneapolis but conflicts beyond our control relating to accommodations have necessitated the date shift. We hope that you will still join us.
The conference website is now live at spnhc2025.ku.edu<http://www.spnhc2025.ku.edu/> which contains preliminary information on Lawrence, transportation and travel options, and a tentative agenda for the meeting. This information will be updated with more details concerning accommodations, registration, abstract submission, and more become available.
With the launch of the website, we have also opened the call for sessions, symposia and workshops<https://spnhc2025.ku.edu/symposia-sessions-workshops>. If you are interested in chairing or convening a session or symposium, please complete the Google form<https://forms.gle/oe3h1RbUDvcNoSCK8>. If you wish to run a workshop, please contact us. Confirmed sessions will be posted on the website in due course. Deadline for submissions is January 10.
Additionally, applications for Travel Grants<https://spnhc2025.ku.edu/travel-grants> are now open. Please complete the applicable form for Fitzgerald or Christine Allen travel grants. Separate calls will go out shortly from the SPNHC Recognition and Grants Committee. Deadline for submissions is January 31.
We will also be relying heavily on generous support from vendors and sponsors<https://spnhc2025.ku.edu/vendors-sponsors> to keep costs as low as possible. We will be approaching traditional and local vendors and sponsors for support but would be grateful for any leads the community may have for additional contacts. Many opportunities exist at various levels as outlined in the conference prospectus document available on request as a PDF.
More details on accommodation options (both hotel and KU apartments), registration and abstract submission will be forthcoming soon.
Please contact us with any questions or comments at spnhc2025 at ku.edu<mailto:spnhc2025 at ku.edu>.
We look forward to seeing you in June 2025.
Thanks
Andrew Bentley
On behalf of the Local Organizing Committee
A : A : A :
}<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?>
V V V
Andy Bentley
Ichthyology Collection Manager
University of Kansas
Biodiversity Institute
Dyche Hall
1345 Jayhawk Boulevard
Lawrence, KS, 66045-7561
USA
Tel: (785) 864-3863<tel:%28785%29%20864-3863>
Fax: (785) 864-5335<tel:%28785%29%20864-5335>
Email: abentley at ku.edu<mailto:abentley at ku.edu>
ORCID: https://orcid.org/0000-0002-3093-1258
http://ichthyology.biodiversity.ku.edu<http://ichthyology.biodiversity.ku.edu/>
A : A : A :
}<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?>
V V V
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From robfaucett at mac.com Mon Nov 18 10:51:56 2024
From: robfaucett at mac.com (Rob Faucett)
Date: Mon, 18 Nov 2024 07:51:56 -0800
Subject: [Nhcoll-l] SPNHC 2025 - May 27-31, 2025 - Biodiversity Institute,
University of Kansas
In-Reply-To: <SN7PR01MB8020940B3001A63F093189C8B2272@SN7PR01MB8020.prod.exchangelabs.com>
References: <SN7PR01MB8020940B3001A63F093189C8B2272@SN7PR01MB8020.prod.exchangelabs.com>
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From gabriela.hogue at naturalsciences.org Mon Nov 18 17:00:50 2024
From: gabriela.hogue at naturalsciences.org (Hogue, Gabriela)
Date: Mon, 18 Nov 2024 22:00:50 +0000
Subject: [Nhcoll-l] Position Announcement - Science Data Administrator at
the NC Museum of Natural Sciences
Message-ID: <DM8PR09MB71600779AA635DB3AB3AC52091272@DM8PR09MB7160.namprd09.prod.outlook.com>
Science Data Administrator
Primary Purpose of Position:
The Science Data Administrator is responsible for developing and managing the digital collections databases and IT systems, needs, capabilities, and solutions for the Research & Collections Section. This position acts as application administrator and configures, supports, and tests the Collection Asset Management System, integration with industry standard collection applications (Specify), and other related software in collaboration with the museum's Ph.D. level research team.
This role provides back-end support for collections data normalization and integrity, migration between and integration of databases, support of stakeholders and end users, support of collections digitization projects, support of research efforts, analytical needs, and associated IT solutions, cybersecurity, and sharing of data with collaborators and aggregators. These functions serve science communication through the maintenance and manipulation of data into easily consumable output for the public.
For additional information and to apply, go to: https://www.governmentjobs.com/careers/northcarolina/jobs/4711103/
Please be sure to complete the application in full. Resume/CV may be uploaded with your application but will not be accepted in lieu of a fully completed application and will not be considered for qualifying credit.
"See Resume" or "See Attachment" will NOT be accepted and will render your application incomplete.
Closes on: December 5, 2024, at 5:00 pm ET
Gabriela M. Hogue
Collections Manager, Ichthyology
North Carolina Museum of Natural Sciences
11 West Jones Street, Raleigh, NC 27601-1029 USA
919.707.8868
www.naturalsciences.org<http://www.naturalsciences.org/>
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation.
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From jbandjb at live.com Tue Nov 19 23:51:42 2024
From: jbandjb at live.com (James and Judy Bryant)
Date: Wed, 20 Nov 2024 04:51:42 +0000
Subject: [Nhcoll-l] Structured packaging
Message-ID: <71651BEF-CE6C-491E-B7B8-9CEF93D283BA@live.com>
I?ve recently seen some impressive designs for structured cartons and packing in retail use. It seems like a US company this talented might produce custom and recyclable packaging for collections management, object storage and shipping.
If you are interested, see http://www.generalfibre.com/corrugated
James Bryant
SOJOURN Science - Nature - Education
Santa Fe, NM
https://www.linkedin.com/in/james-bryant-0598a940/
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From shoobs.1 at osu.edu Fri Nov 22 14:30:13 2024
From: shoobs.1 at osu.edu (Shoobs, Nate)
Date: Fri, 22 Nov 2024 19:30:13 +0000
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury /
mystery Mercuric chloride reaction
Message-ID: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
A question for the chemists in the room:
In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid ? to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
Here?s what we know about the contents of the jar:
* I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
* ? The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed.?
* The specimens are currently, to the best of my knowledge, stored in a solution of ?AGW?: (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
* There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
* The tag is not magnetic, but I don?t know if that?s because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
* It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
These are important voucher specimens, and ideally I?d like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren?t a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
-Nate
--
[The Ohio State University]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu>
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From tschioette at snm.ku.dk Mon Nov 25 04:01:34 2024
From: tschioette at snm.ku.dk (=?iso-8859-1?Q?Tom_Schi=F8tte?=)
Date: Mon, 25 Nov 2024 09:01:34 +0000
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury
/ mystery Mercuric chloride reaction
In-Reply-To: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
Message-ID: <17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
Hi Nate,
I am no chemist, but I wonder about your initial statement that the silvery beads were 'floating around in the alcohol'. Do you mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
Best
Tom
Tom Schi?tte
Collection manager, Echinodermata & Mollusca
Natural History Museum of Denmark (Zoology)
Universitetsparken 15
DK 2100 Copenhagen OE
+45 35 32 10 48
TSchioette at snm.ku.dk<mailto:TSchioette at snm.ku.dk>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Shoobs, Nate
Sent: 22. november 2024 20:30
To: nhcoll-l at mailman.yale.edu
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
A question for the chemists in the room:
In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid - to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
Here's what we know about the contents of the jar:
* I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
* " The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed."
* The specimens are currently, to the best of my knowledge, stored in a solution of "AGW": (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
* There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
* The tag is not magnetic, but I don't know if that's because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
* It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
These are important voucher specimens, and ideally I'd like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren't a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
-Nate
--
[The Ohio State University]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
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From shoobs.1 at osu.edu Mon Nov 25 11:27:10 2024
From: shoobs.1 at osu.edu (Shoobs, Nate)
Date: Mon, 25 Nov 2024 16:27:10 +0000
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury
/ mystery Mercuric chloride reaction
In-Reply-To: <17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
<17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
Message-ID: <DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
Hey Tom,
The ?floating around? was more of a casual figure of speech than a technical description. The beads were initially noticed adhering to the cotton cheesecloth bags which hold the soft bodies of individually numbered specimens, and upon shaking the jar these droplets/beads fall to the bottom and coalesce. They are certainly denser than the surrounding ethanol.
John Simmons sent me a copy of his article on mercury in wet specimens from the NHMW in Vienna [Collection Forum 2007; 22(1-2):32-36]. In that paper, the authors indicate that the only metal that would be liquid at slightly below room temperature is mercury. The temp of one jar in our collection this morning is 20.1? C. At that temperature, gallium or a gallium alloy would be solid (though some reading suggests there are some gallium alloys that have lower melting points, I don?t have any reason to think these would be present in the sample).
The evidence from the preparator?s dissertation that mercuric chloride was used to prep the specimens in question points to the substance being mercury that fell out of solution. The questions are ? what reaction took place, and what are the potentially harmful products of that or subsequent reactions?
-Nate
-
Nathaniel F. Shoobs, Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology, The Ohio State University
Museum of Biological Diversity
1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Tom Schi?tte <tschioette at snm.ku.dk>
Sent: Monday, November 25, 2024 4:01:34 AM
To: nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
Hi Nate, I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.?5 g/cm3. Best Tom Tom Schi?tte Collection manager,
Hi Nate,
I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
Best
Tom
Tom Schi?tte
Collection manager, Echinodermata & Mollusca
Natural History Museum of Denmark (Zoology)
Universitetsparken 15
DK 2100 Copenhagen OE
+45 35 32 10 48
TSchioette at snm.ku.dk<mailto:TSchioette at snm.ku.dk>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Shoobs, Nate
Sent: 22. november 2024 20:30
To: nhcoll-l at mailman.yale.edu
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
A question for the chemists in the room:
In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid ? to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
Here?s what we know about the contents of the jar:
* I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
* ? The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed.?
* The specimens are currently, to the best of my knowledge, stored in a solution of ?AGW?: (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
* There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
* The tag is not magnetic, but I don?t know if that?s because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
* It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
These are important voucher specimens, and ideally I?d like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren?t a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
-Nate
--
[The Ohio State University]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
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From d.neumann at leibniz-lib.de Mon Nov 25 12:39:44 2024
From: d.neumann at leibniz-lib.de (Dirk Neumann)
Date: Mon, 25 Nov 2024 18:39:44 +0100
Subject: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated
with mercury / mystery Mercuric chloride reaction
In-Reply-To: <DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
<17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
<DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
Message-ID: <4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
Hi Nate,
corrosive sublimate was a common "enhancer" to increase the preservative strength of ethanol; John probably covered this in his email already.
Sublimate (mercury-II-chloride, Hg Cl2) was a common additive for the preservation invertebrates; see Piechocki, Makroskopische Pr?parationstechnik Wirbellose: https://www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN
Joachim H?ndel noted on earlier posts here on NHColl dealing with mercury that a simple test would be to put a copper coin or copper wire into the fluid; in presence of sublimate, a silver mercury layer should form on the copper. He might add if I am referring wrongly to his advise.
Depending on the specimens, it might not be easy to remove the mercury completely; the easiest would be to carefully remove the specimens without disturbing too much of the mercury deposits, but for sure there is additional mercury/sublimate in the specimens, which will be difficult to remove (especially in invertebrates).
At the second fluid preservation symposium in La Chaux-de-Fonds, Celine Stoffel, a colleague from the Natural History Collection in Lausanne, Switzerland, had an interesting approach to handle such an situation: knowing that she cannot get rid of the contaminants, she marked the jar accordingly informing all potential people that might handle the specimen in the future that the preservation fluid is contaminated.
Maybe this helps
Dirk
Am 25.11.2024 um 17:27 schrieb Shoobs, Nate:
Hey Tom,
The ?floating around? was more of a casual figure of speech than a technical description. The beads were initially noticed adhering to the cotton cheesecloth bags which hold the soft bodies of individually numbered specimens, and upon shaking the jar these droplets/beads fall to the bottom and coalesce. They are certainly denser than the surrounding ethanol.
John Simmons sent me a copy of his article on mercury in wet specimens from the NHMW in Vienna [Collection Forum 2007; 22(1-2):32-36]. In that paper, the authors indicate that the only metal that would be liquid at slightly below room temperature is mercury. The temp of one jar in our collection this morning is 20.1? C. At that temperature, gallium or a gallium alloy would be solid (though some reading suggests there are some gallium alloys that have lower melting points, I don?t have any reason to think these would be present in the sample).
The evidence from the preparator?s dissertation that mercuric chloride was used to prep the specimens in question points to the substance being mercury that fell out of solution. The questions are ? what reaction took place, and what are the potentially harmful products of that or subsequent reactions?
-Nate
-
Nathaniel F. Shoobs, Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology, The Ohio State University
Museum of Biological Diversity
1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> on behalf of Tom Schi?tte <tschioette at snm.ku.dk><mailto:tschioette at snm.ku.dk>
Sent: Monday, November 25, 2024 4:01:34 AM
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu> <nhcoll-l at mailman.yale.edu><mailto:nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
Hi Nate, I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.?5 g/cm3. Best Tom Tom Schi?tte Collection manager,
Hi Nate,
I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
Best
Tom
Tom Schi?tte
Collection manager, Echinodermata & Mollusca
Natural History Museum of Denmark (Zoology)
Universitetsparken 15
DK 2100 Copenhagen OE
+45 35 32 10 48
TSchioette at snm.ku.dk<mailto:TSchioette at snm.ku.dk>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Shoobs, Nate
Sent: 22. november 2024 20:30
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
A question for the chemists in the room:
In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid ? to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
Here?s what we know about the contents of the jar:
* I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
* ? The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed.?
* The specimens are currently, to the best of my knowledge, stored in a solution of ?AGW?: (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
* There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
* The tag is not magnetic, but I don?t know if that?s because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
* It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
These are important voucher specimens, and ideally I?d like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren?t a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
-Nate
--
[The Ohio State University]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
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--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
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From couteaufin at btinternet.com Mon Nov 25 12:55:40 2024
From: couteaufin at btinternet.com (Simon Moore)
Date: Mon, 25 Nov 2024 17:55:40 +0000
Subject: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated
with mercury / mystery Mercuric chloride reaction
In-Reply-To: <4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
<17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
<DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
<4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
Message-ID: <F388B2C6-E6FE-462D-B488-39E96B736091@btinternet.com>
I?m just throwing this into the mix of comments!
Back in my histology days we used a 1% solution of iodine in alcohol which converted the mercury to mercuric iodide. The resultant brown stain was removed with a solution of sodium thiosulphate. I haven?t tried this with whole specimens but someone may be able to extrapolate on this idea?
With all good wishes, Simon
Simon Moore MIScT, RSci, FLS, ACR
Conservator of Natural Sciences and Cutlery Historian.
www.natural-history-conservation.com
> On 25 Nov 2024, at 17:39, Dirk Neumann <d.neumann at leibniz-lib.de> wrote:
>
> Hi Nate,
>
> corrosive sublimate was a common "enhancer" to increase the preservative strength of ethanol; John probably covered this in his email already.
>
> Sublimate (mercury-II-chloride, Hg Cl2) was a common additive for the preservation invertebrates; see Piechocki, Makroskopische Pr?parationstechnik Wirbellose:https://www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN
>
> Joachim H?ndel noted on earlier posts here on NHColl dealing with mercury that a simple test would be to put a copper coin or copper wire into the fluid; in presence of sublimate, a silver mercury layer should form on the copper. He might add if I am referring wrongly to his advise.
>
> Depending on the specimens, it might not be easy to remove the mercury completely; the easiest would be to carefully remove the specimens without disturbing too much of the mercury deposits, but for sure there is additional mercury/sublimate in the specimens, which will be difficult to remove (especially in invertebrates).
>
> At the second fluid preservation symposium in La Chaux-de-Fonds, Celine Stoffel, a colleague from the Natural History Collection in Lausanne, Switzerland, had an interesting approach to handle such an situation: knowing that she cannot get rid of the contaminants, she marked the jar accordingly informing all potential people that might handle the specimen in the future that the preservation fluid is contaminated.
>
> Maybe this helps
> Dirk
>
>
>
>
> Am 25.11.2024 um 17:27 schrieb Shoobs, Nate:
>>
>>
>> Hey Tom, The ?floating around? was more of a casual figure of speech than a technical description. The beads were initially noticed adhering to the cotton cheesecloth bags which hold the soft bodies of individually numbered specimens, and upon shaking the jar these droplets/beads fall to the bottom and coalesce. They are certainly denser than the surrounding ethanol.
>> John Simmons sent me a copy of his article on mercury in wet specimens from the NHMW in Vienna [Collection Forum 2007; 22(1-2):32-36]. In that paper, the authors indicate that the only metal that would be liquid at slightly below room temperature is mercury. The temp of one jar in our collection this morning is 20.1? C. At that temperature, gallium or a gallium alloy would be solid (though some reading suggests there are some gallium alloys that have lower melting points, I don?t have any reason to think these would be present in the sample). The evidence from the preparator?s dissertation that mercuric chloride was used to prep the specimens in question points to the substance being mercury that fell out of solution. The questions are ? what reaction took place, and what are the potentially harmful products of that or subsequent reactions?
>> -Nate
>> -
>> Nathaniel F. Shoobs, Curator of Mollusks
>> College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology, The Ohio State University
>> Museum of Biological Diversity
>> 1315 Kinnear Rd, Columbus, OH 43212
>> 614-688-1342 (Office)
>> mbd.osu.eduFrom: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Tom Schi?tte <tschioette at snm.ku.dk>
>> Sent: Monday, November 25, 2024 4:01:34 AM
>> To: nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
>> Subject: Re: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
>>
>>
>> Hi Nate,
>> I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
>> Best
>> Tom
>>
>> Tom Schi?tte
>> Collection manager, Echinodermata & Mollusca
>> Natural History Museum of Denmark (Zoology)
>> Universitetsparken 15
>> DK 2100 Copenhagen OE
>> +45 35 32 10 48
>> TSchioette at snm.ku.dk
>>
>>
>>
>> From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Shoobs, Nate
>> Sent: 22. november 2024 20:30
>> To: nhcoll-l at mailman.yale.edu
>> Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
>>
>> A question for the chemists in the room:
>>
>> In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid ? to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
>>
>> Here?s what we know about the contents of the jar:
>> ? I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
>> ? ? The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed.?
>> ? The specimens are currently, to the best of my knowledge, stored in a solution of ?AGW?: (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
>> ? There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
>> ? The tag is not magnetic, but I don?t know if that?s because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
>> ? It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
>>
>> These are important voucher specimens, and ideally I?d like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren?t a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
>>
>> Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
>>
>> -Nate
>> --<image001.png>
>>
>> Nathaniel F. Shoobs
>> Curator of Mollusks
>> College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
>> Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
>> 614-688-1342 (Office)
>> mbd.osu.edu
>>
>> _______________________________________________
>> Nhcoll-l mailing list
>> Nhcoll-l at mailman.yale.edu
>> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>>
>> _______________________________________________
>> NHCOLL-L is brought to you by the Society for the Preservation of
>> Natural History Collections (SPNHC), an international society whose
>> mission is to improve the preservation, conservation and management of
>> natural history collections to ensure their continuing value to
>> society. See http://www.spnhc.org for membership information.
>> Advertising on NH-COLL-L is inappropriate.
>>
>
> --
> ****
> Dirk Neumann
> Collection Manager, Hamburg
> Postal address:
> Museum of Nature Hamburg
> Leibniz Institute for the Analysis
> of Biodiversity Change
> Dirk Neumann
> Martin-Luther-King-Platz 3
> 20146 Hamburg
> +49 40 238 317 ? 628
> d.neumann at leibniz-lib.de
> www.leibniz-lib.de
> --
> Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
> Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
>
> Stiftung des ?ffentlichen Rechts;
> Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
> Sitz der Stiftung: Adenauerallee 160 in Bonn
> Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
>
> --
> Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
> Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
>
> Stiftung des ?ffentlichen Rechts;
> Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
> Sitz der Stiftung: Adenauerallee 160 in Bonn
> Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> https://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.org for membership information.
> Advertising on NH-COLL-L is inappropriate.
From d.neumann at leibniz-lib.de Mon Nov 25 13:08:10 2024
From: d.neumann at leibniz-lib.de (Dirk Neumann)
Date: Mon, 25 Nov 2024 19:08:10 +0100
Subject: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated
with mercury / mystery Mercuric chloride reaction
In-Reply-To: <F388B2C6-E6FE-462D-B488-39E96B736091@btinternet.com>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
<17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
<DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
<4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
<F388B2C6-E6FE-462D-B488-39E96B736091@btinternet.com>
Message-ID: <dedeac59-2b4a-49f5-a27e-9e1be0a28c3a@leibniz-lib.de>
hmmmm, intersting Simon, I am wondering if this would work with solid specimens, too?
Am 25.11.2024 um 18:55 schrieb Simon Moore:
ACHTUNG/ATTENTION: Diese E-Mail stammt von einem externen Absender. / This e-mail comes from an external sender.
I?m just throwing this into the mix of comments!
Back in my histology days we used a 1% solution of iodine in alcohol which converted the mercury to mercuric iodide. The resultant brown stain was removed with a solution of sodium thiosulphate. I haven?t tried this with whole specimens but someone may be able to extrapolate on this idea?
With all good wishes, Simon
Simon Moore MIScT, RSci, FLS, ACR
Conservator of Natural Sciences and Cutlery Historian.
www.natural-history-conservation.com<http://www.natural-history-conservation.com>
On 25 Nov 2024, at 17:39, Dirk Neumann <d.neumann at leibniz-lib.de><mailto:d.neumann at leibniz-lib.de> wrote:
Hi Nate,
corrosive sublimate was a common "enhancer" to increase the preservative strength of ethanol; John probably covered this in his email already.
Sublimate (mercury-II-chloride, Hg Cl2) was a common additive for the preservation invertebrates; see Piechocki, Makroskopische Pr?parationstechnik Wirbellose:https://www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN
Joachim H?ndel noted on earlier posts here on NHColl dealing with mercury that a simple test would be to put a copper coin or copper wire into the fluid; in presence of sublimate, a silver mercury layer should form on the copper. He might add if I am referring wrongly to his advise.
Depending on the specimens, it might not be easy to remove the mercury completely; the easiest would be to carefully remove the specimens without disturbing too much of the mercury deposits, but for sure there is additional mercury/sublimate in the specimens, which will be difficult to remove (especially in invertebrates).
At the second fluid preservation symposium in La Chaux-de-Fonds, Celine Stoffel, a colleague from the Natural History Collection in Lausanne, Switzerland, had an interesting approach to handle such an situation: knowing that she cannot get rid of the contaminants, she marked the jar accordingly informing all potential people that might handle the specimen in the future that the preservation fluid is contaminated.
Maybe this helps
Dirk
Am 25.11.2024 um 17:27 schrieb Shoobs, Nate:
Hey Tom, The ?floating around? was more of a casual figure of speech than a technical description. The beads were initially noticed adhering to the cotton cheesecloth bags which hold the soft bodies of individually numbered specimens, and upon shaking the jar these droplets/beads fall to the bottom and coalesce. They are certainly denser than the surrounding ethanol.
John Simmons sent me a copy of his article on mercury in wet specimens from the NHMW in Vienna [Collection Forum 2007; 22(1-2):32-36]. In that paper, the authors indicate that the only metal that would be liquid at slightly below room temperature is mercury. The temp of one jar in our collection this morning is 20.1? C. At that temperature, gallium or a gallium alloy would be solid (though some reading suggests there are some gallium alloys that have lower melting points, I don?t have any reason to think these would be present in the sample). The evidence from the preparator?s dissertation that mercuric chloride was used to prep the specimens in question points to the substance being mercury that fell out of solution. The questions are ? what reaction took place, and what are the potentially harmful products of that or subsequent reactions?
-Nate
-
Nathaniel F. Shoobs, Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology, The Ohio State University
Museum of Biological Diversity
1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.eduFrom: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> on behalf of Tom Schi?tte <tschioette at snm.ku.dk><mailto:tschioette at snm.ku.dk>
Sent: Monday, November 25, 2024 4:01:34 AM
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu> <nhcoll-l at mailman.yale.edu><mailto:nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
Hi Nate,
I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
Best
Tom
Tom Schi?tte
Collection manager, Echinodermata & Mollusca
Natural History Museum of Denmark (Zoology)
Universitetsparken 15
DK 2100 Copenhagen OE
+45 35 32 10 48
TSchioette at snm.ku.dk<mailto:TSchioette at snm.ku.dk>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Shoobs, Nate
Sent: 22. november 2024 20:30
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
A question for the chemists in the room:
In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid ? to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
Here?s what we know about the contents of the jar:
? I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
? ? The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed.?
? The specimens are currently, to the best of my knowledge, stored in a solution of ?AGW?: (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
? There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
? The tag is not magnetic, but I don?t know if that?s because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
? It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
These are important voucher specimens, and ideally I?d like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren?t a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
-Nate
--<image001.png>
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu
_______________________________________________
Nhcoll-l mailing list
Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>
https://mailman.yale.edu/mailman/listinfo/nhcoll-l
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See http://www.spnhc.org for membership information.
Advertising on NH-COLL-L is inappropriate.
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de<http://www.leibniz-lib.de>
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
_______________________________________________
Nhcoll-l mailing list
Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>
https://mailman.yale.edu/mailman/listinfo/nhcoll-l
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See http://www.spnhc.org for membership information.
Advertising on NH-COLL-L is inappropriate.
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de<imap://dneumann at webmail.leibniz-lib.de:993/fetch%3EUID%3E/INBOX/Privat/www.leibniz-lib.de>
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
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From Joachim.Haendel at zns.uni-halle.de Wed Nov 27 04:44:58 2024
From: Joachim.Haendel at zns.uni-halle.de (=?UTF-8?Q?Joachim=20H=C3=A4ndel?=)
Date: Wed, 27 Nov 2024 10:44:58 +0100
Subject: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated
with mercury / mystery Mercuric chloride reaction
In-Reply-To: <4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
<17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
<DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
<4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
Message-ID: <6746EA1A020000B3000CF578@zuv12.verwaltung.uni-halle.de>
Hi Nate,
I suspect the same as Dirk - thanks for quoting.
It is possible that the tag is not made of aluminium, but of brass.
This is also non-magnetic and possibly the copper from it could react
with the mercuric chloride, producing mercury and copper
chloride, which could also cause the green colouring.
But that's just a guess.
All the best
Joachim
--
Joachim Haendel
Center of Natural Science Collections
of the Martin Luther University (ZNS)
- Entomological Collection -
Domplatz 4
D-06099 Halle (Saale)
Germany
Phone: +49 345 - 55 26 447
Email: joachim.haendel at zns.uni-halle.de
>>> Dirk Neumann <d.neumann at leibniz-lib.de> 25.11.2024, 18:40 >>>
Hi Nate,
corrosive sublimate was a common "enhancer" to increase the preservative
strength of ethanol; John probably covered this in his
email already.
Sublimate (mercury-II-chloride, Hg Cl2) was a common additive for the
preservation invertebrates; see Piechocki, Makroskopische
Pr?parationstechnik Wirbellose:
https://www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN
[https://www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN]
Joachim H?ndel noted on earlier posts here on NHColl dealing with
mercury that a simple test would be to put a copper coin or
copper wire into the fluid; in presence of sublimate, a silver mercury
layer should form on the copper. He might add if I am
referring wrongly to his advise.
Depending on the specimens, it might not be easy to remove the mercury
completely; the easiest would be to carefully remove the
specimens without disturbing too much of the mercury deposits, but for
sure there is additional mercury/sublimate in the
specimens, which will be difficult to remove (especially in
invertebrates).
At the second fluid preservation symposium in La Chaux-de-Fonds, Celine
Stoffel, a colleague from the Natural History Collection
in Lausanne, Switzerland, had an interesting approach to handle such an
situation: knowing that she cannot get rid of the
contaminants, she marked the jar accordingly informing all potential
people that might handle the specimen in the future that the
preservation fluid is contaminated.
Maybe this helps
Dirk
Am 25.11.2024 um 17:27 schrieb Shoobs, Nate:
> Hey Tom,
>
> The ?floating around? was more of a casual figure of speech than a
technical description. The beads were initially noticed
> adhering to the cotton cheesecloth bags which hold the soft bodies of
individually numbered specimens, and upon shaking the jar
> these droplets/beads fall to the bottom and coalesce. They are
certainly denser than the surrounding ethanol.
>
>
>
> John Simmons sent me a copy of his article on mercury in wet specimens
from the NHMW in Vienna [Collection Forum 2007;
> 22(1-2):32-36]. In that paper, the authors indicate that the only
metal that would be liquid at slightly below room temperature
> is mercury. The temp of one jar in our collection this morning is 20.1?
C. At that temperature, gallium or a gallium alloy would
> be solid (though some reading suggests there are some gallium alloys
that have lower melting points, I don?t have any reason to
> think these would be present in the sample).
>
>
>
> The evidence from the preparator?s dissertation that mercuric chloride
was used to prep the specimens in question points to the
> substance being mercury that fell out of solution. The questions are ?
what reaction took place, and what are the potentially
> harmful products of that or subsequent reactions?
>
>
>
> -Nate
>
> -
> Nathaniel F. Shoobs, Curator of Mollusks
>
> College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal
Biology, The Ohio State University
> Museum of Biological Diversity
>
> 1315 Kinnear Rd, Columbus, OH 43212
> 614-688-1342 (Office)
> mbd.osu.edu [http://mbd.osu.edu/]
>
>
----------------------------------------------------------> From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu>
[nhcoll-l-bounces at mailman.yale.edu] on behalf of Tom Schi?tte
> <tschioette at snm.ku.dk> [tschioette at snm.ku.dk]
> Sent: Monday, November 25, 2024 4:01:34 AM
> To: nhcoll-l at mailman.yale.edu [nhcoll-l at mailman.yale.edu]
<nhcoll-l at mailman.yale.edu> [nhcoll-l at mailman.yale.edu]
> Subject: Re: [Nhcoll-l] Safely rehousing specimens contaminated with
mercury / mystery Mercuric chloride reaction
>
>
>
> Hi Nate, I am no chemist, but I wonder about your initial statement
that the silvery beads were ?floating around in the
> alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.?5
g/cm3. Best Tom Tom Schi?tte Collection manager,
>
>
>
> Hi Nate,
>
> I am no chemist, but I wonder about your initial statement that the
silvery beads were ?floating around in the alcohol?. Do you
> mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
>
> Best
>
> Tom
>
>
>
> Tom Schi?tte
>
>
>
> Collection manager, Echinodermata & Mollusca
>
> Natural History Museum of Denmark (Zoology)
>
> Universitetsparken 15
>
> DK 2100 Copenhagen OE
>
>
>
> +45 35 32 10 48
>
> TSchioette at snm.ku.dk [TSchioette at snm.ku.dk]
>
>
>
>
>
>
>
> From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu>
[nhcoll-l-bounces at mailman.yale.edu] On Behalf Of Shoobs, Nate
> Sent: 22. november 2024 20:30
> To: nhcoll-l at mailman.yale.edu [nhcoll-l at mailman.yale.edu]
> Subject: [Nhcoll-l] Safely rehousing specimens contaminated with
mercury / mystery Mercuric chloride reaction
>
>
>
> A question for the chemists in the room:
>
>
>
> In examining a jar of freshwater bivalves from our wet collection, a
student and I noticed that there were small silvery beads
> floating around in the alcohol. Upon closer inspection, we realized
that these beads were actually liquid ? to my eye, it looks
> and acts like elemental mercury (the droplets readily coalesce and
break apart, are silvery white, and denser than the
> surrounding alcohol).
>
>
>
> Here?s what we know about the contents of the jar:
>
> * I figured the fixative used on these specimens contained a mercury
compound, and found this information, in the doctoral
> dissertation of the preparator of the sample:
>
> * ? The entire body of each animal was fixed whole, usually in FSA
fixative (40 g mercuric chloride, 50 ml glacial acetic acid,
> 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953).
After 24 hours In this fixative, the soft parts were
> rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol.
They were stored In 80% ethanol until needed.?
>
> * The specimens are currently, to the best of my knowledge, stored in
a solution of ?AGW?: (75% nondenatured ethanol, 3%
> glycerine, 22% distilled water).
> * There is a metal tag, either steel or aluminum, in the jar, which
is disintegrating, turning green, and forming many small
> grey tube-shaped tendrils of precipitate.
>
> * The tag is not magnetic, but I don?t know if that?s because it has
completely reacted, or because it is aluminum. I know that
> aluminum + water in the presence of ethanol tends to form Aluminum
hydroxide, but this precipitate does not appear to be. It
> was curatorial practice from 1960-2019 to include a metal embossed
tag with the cat number in wet lots, but I abolished this
> practice because of the tendency of metal to react with the
preservatives.
>
> * It seems evident that because there is free mercury in the jar, the
mercuric chloride reacted with something in the jar. The
> green tinge in the alcohol makes me think that that reaction
yielded some amount of chlorine gas, as well.
>
>
>
> These are important voucher specimens, and ideally I?d like to figure
out a way to safely rehouse them and keep them long term,
> but if there is no way to ensure they aren?t a health hazard going
forward, I will contact our EHS department to coordinate
>> Obviously I am not opening the jars or letting anyone else near them
until I can figure out what reaction(s) took place in the
> jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le
Parfait bail top jars prepared by this researcher.
>
>
>
> -Nate
>
> --
>
>
> Nathaniel F. Shoobs
> Curator of Mollusks
> College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal
Biology
> Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
> 614-688-1342 (Office)
> mbd.osu.edu [http://mbd.osu.edu/]
>
>
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.eduNhcoll-l@mailman.yale.edu
>
https://mailman.yale.edu/mailman/listinfo/nhcoll-lhttps://mailman.yale.edu/mailman/listinfo/nhcoll-l
>
> _______________________________________________
> NHCOLL-L is brought to you by the Society for the Preservation of
> Natural History Collections (SPNHC), an international society whose
> mission is to improve the preservation, conservation and management of
> natural history collections to ensure their continuing value to
> society. See http://www.spnhc.orghttp://www.spnhc.org for membership
information.
> Advertising on NH-COLL-L is inappropriate.
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de [d.neumann at leibniz-lib.de]
www.leibniz-lib.de
[imap://dneumann at webmail.leibniz-lib.de:993/fetch%3EUID%3E/INBOX/Privat/www.leibniz-lib.de]
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian
Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian
Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
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From d.neumann at leibniz-lib.de Wed Nov 27 13:03:44 2024
From: d.neumann at leibniz-lib.de (Dirk Neumann)
Date: Wed, 27 Nov 2024 19:03:44 +0100
Subject: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated
with mercury / mystery Mercuric chloride reaction
In-Reply-To: <6746EA1A020000B3000CF578@zuv12.verwaltung.uni-halle.de>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
<17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
<DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
<4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
<6746EA1A020000B3000CF578@zuv12.verwaltung.uni-halle.de>
Message-ID: <d1fadded-6533-4cd1-970c-aaadf7855355@leibniz-lib.de>
Brass tags - interesting!
Knew it would be worth nudging you, Joachim, that would be a very reasonable explanation for the formation of mercury droplets on the metal tag.
Concur with reasoning for the green colour stain.
All the best
Dirk
Am 27.11.2024 um 10:44 schrieb Joachim H?ndel:
Hi Nate,
I suspect the same as Dirk - thanks for quoting.
It is possible that the tag is not made of aluminium, but of brass.
This is also non-magnetic and possibly the copper from it could react with the mercuric chloride, producing mercury and copper chloride, which could also cause the green colouring.
But that's just a guess.
All the best
Joachim
--
Joachim Haendel
Center of Natural Science Collections
of the Martin Luther University (ZNS)
- Entomological Collection -
Domplatz 4
D-06099 Halle (Saale)
Germany
Phone: +49 345 - 55 26 447
Email: joachim.haendel at zns.uni-halle.de<mailto:joachim.haendel at zns.uni-halle.de>
>>> Dirk Neumann <d.neumann at leibniz-lib.de><mailto:d.neumann at leibniz-lib.de> 25.11.2024, 18:40 >>>
Hi Nate,
corrosive sublimate was a common "enhancer" to increase the preservative strength of ethanol; John probably covered this in his email already.
Sublimate (mercury-II-chloride, Hg Cl2) was a common additive for the preservation invertebrates; see Piechocki, Makroskopische Pr?parationstechnik Wirbellose: https://www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN
Joachim H?ndel noted on earlier posts here on NHColl dealing with mercury that a simple test would be to put a copper coin or copper wire into the fluid; in presence of sublimate, a silver mercury layer should form on the copper. He might add if I am referring wrongly to his advise.
Depending on the specimens, it might not be easy to remove the mercury completely; the easiest would be to carefully remove the specimens without disturbing too much of the mercury deposits, but for sure there is additional mercury/sublimate in the specimens, which will be difficult to remove (especially in invertebrates).
At the second fluid preservation symposium in La Chaux-de-Fonds, Celine Stoffel, a colleague from the Natural History Collection in Lausanne, Switzerland, had an interesting approach to handle such an situation: knowing that she cannot get rid of the contaminants, she marked the jar accordingly informing all potential people that might handle the specimen in the future that the preservation fluid is contaminated.
Maybe this helps
Dirk
Am 25.11.2024 um 17:27 schrieb Shoobs, Nate:
Hey Tom,
The ?floating around? was more of a casual figure of speech than a technical description. The beads were initially noticed adhering to the cotton cheesecloth bags which hold the soft bodies of individually numbered specimens, and upon shaking the jar these droplets/beads fall to the bottom and coalesce. They are certainly denser than the surrounding ethanol.
John Simmons sent me a copy of his article on mercury in wet specimens from the NHMW in Vienna [Collection Forum 2007; 22(1-2):32-36]. In that paper, the authors indicate that the only metal that would be liquid at slightly below room temperature is mercury. The temp of one jar in our collection this morning is 20.1? C. At that temperature, gallium or a gallium alloy would be solid (though some reading suggests there are some gallium alloys that have lower melting points, I don?t have any reason to think these would be present in the sample).
The evidence from the preparator?s dissertation that mercuric chloride was used to prep the specimens in question points to the substance being mercury that fell out of solution. The questions are ? what reaction took place, and what are the potentially harmful products of that or subsequent reactions?
-Nate
-
Nathaniel F. Shoobs, Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology, The Ohio State University
Museum of Biological Diversity
1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> on behalf of Tom Schi?tte <tschioette at snm.ku.dk><mailto:tschioette at snm.ku.dk>
Sent: Monday, November 25, 2024 4:01:34 AM
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu> <nhcoll-l at mailman.yale.edu><mailto:nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
Hi Nate, I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.?5 g/cm3. Best Tom Tom Schi?tte Collection manager,
Hi Nate,
I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
Best
Tom
Tom Schi?tte
Collection manager, Echinodermata & Mollusca
Natural History Museum of Denmark (Zoology)
Universitetsparken 15
DK 2100 Copenhagen OE
+45 35 32 10 48
TSchioette at snm.ku.dk<mailto:TSchioette at snm.ku.dk>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Shoobs, Nate
Sent: 22. november 2024 20:30
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
A question for the chemists in the room:
In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid ? to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
Here?s what we know about the contents of the jar:
* I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
* ? The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed.?
* The specimens are currently, to the best of my knowledge, stored in a solution of ?AGW?: (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
* There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
* The tag is not magnetic, but I don?t know if that?s because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
* It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
These are important voucher specimens, and ideally I?d like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren?t a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
-Nate
--
[Image]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
_______________________________________________
Nhcoll-l mailing list
Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>
https://mailman.yale.edu/mailman/listinfo/nhcoll-l
_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See http://www.spnhc.org for membership information.
Advertising on NH-COLL-L is inappropriate.
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de<imap://dneumann at webmail.leibniz-lib.de:993/fetch%3EUID%3E/INBOX/Privat/www.leibniz-lib.de>
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de<imap://dneumann at webmail.leibniz-lib.de:993/fetch%3EUID%3E/INBOX/Privat/www.leibniz-lib.de>
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
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From shoobs.1 at osu.edu Wed Nov 27 13:15:08 2024
From: shoobs.1 at osu.edu (Shoobs, Nate)
Date: Wed, 27 Nov 2024 18:15:08 +0000
Subject: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated
with mercury / mystery Mercuric chloride reaction
In-Reply-To: <d1fadded-6533-4cd1-970c-aaadf7855355@leibniz-lib.de>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
<17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
<DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
<4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
<6746EA1A020000B3000CF578@zuv12.verwaltung.uni-halle.de>
<d1fadded-6533-4cd1-970c-aaadf7855355@leibniz-lib.de>
Message-ID: <DM5PR0102MB3397B3EB4F37704D5D922588DC282@DM5PR0102MB3397.prod.exchangelabs.com>
That?s an interesting idea Joachim. I considered a copper compound because of how copper-y the green color is.
Your mentioning it made me realize that I can probably check the tag composition by opening an uncontaminated jar catalogued around the same time and doing some tests on the metal tag (mainly, to see if acid causes a copper precipitate to form). I know for sure that stainless steel and aluminum are the two most common types. But some tags could have been brass!
As a side-note, it?s a minor miracle that we did not open any of these jars (ca. 96 of them have this mercury issue) during our alcohol inventory. We rehoused thousands of specimens into new jars. But in cases where bailtops had good seals and high alc levels, we generally didn?t reopen them. According to our inventory notes, none of these lots were opened. But the ?weird green color? and ?corroding tags? are mentioned, and actually those would have been priority lots to rehouse in the next round of alc inventory work. Good that we caught this now!
Will report back with results when I have them. Thanks to everyone for the helpful ideas and suggestions so far.
-N
--
[The Ohio State University]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Dirk Neumann <d.neumann at leibniz-lib.de>
Date: Wednesday, November 27, 2024 at 1:04?PM
To: Joachim H?ndel <Joachim.Haendel at zns.uni-halle.de>, nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
Brass tags - interesting! Knew it would be worth nudging you, Joachim, that would be a very reasonable explanation for the formation of mercury droplets on the metal tag. Concur with reasoning for the green colour stain. All the best Dirk Am
Brass tags - interesting!
Knew it would be worth nudging you, Joachim, that would be a very reasonable explanation for the formation of mercury droplets on the metal tag.
Concur with reasoning for the green colour stain.
All the best
Dirk
Am 27.11.2024 um 10:44 schrieb Joachim H?ndel:
Hi Nate,
I suspect the same as Dirk - thanks for quoting.
It is possible that the tag is not made of aluminium, but of brass.
This is also non-magnetic and possibly the copper from it could react with the mercuric chloride, producing mercury and copper chloride, which could also cause the green colouring.
But that's just a guess.
All the best
Joachim
--
Joachim Haendel
Center of Natural Science Collections
of the Martin Luther University (ZNS)
- Entomological Collection -
Domplatz 4
D-06099 Halle (Saale)
Germany
Phone: +49 345 - 55 26 447
Email: joachim.haendel at zns.uni-halle.de<mailto:joachim.haendel at zns.uni-halle.de>
>>> Dirk Neumann <d.neumann at leibniz-lib.de><mailto:d.neumann at leibniz-lib.de> 25.11.2024, 18:40 >>>
Hi Nate,
corrosive sublimate was a common "enhancer" to increase the preservative strength of ethanol; John probably covered this in his email already.
Sublimate (mercury-II-chloride, Hg Cl2) was a common additive for the preservation invertebrates; see Piechocki, Makroskopische Pr?parationstechnik Wirbellose: https://www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN<https://urldefense.com/v3/__https:/www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN__;!!KGKeukY!2pBnCmPa2i0AzM9hjOJ4jzp2UkOJYVLL-cPbaS1rhQSXBDmbMP59iOW-DDs-DKyZ5geUk-t-uDMGoPv__SuLcQgXZg$>
Joachim H?ndel noted on earlier posts here on NHColl dealing with mercury that a simple test would be to put a copper coin or copper wire into the fluid; in presence of sublimate, a silver mercury layer should form on the copper. He might add if I am referring wrongly to his advise.
Depending on the specimens, it might not be easy to remove the mercury completely; the easiest would be to carefully remove the specimens without disturbing too much of the mercury deposits, but for sure there is additional mercury/sublimate in the specimens, which will be difficult to remove (especially in invertebrates).
At the second fluid preservation symposium in La Chaux-de-Fonds, Celine Stoffel, a colleague from the Natural History Collection in Lausanne, Switzerland, had an interesting approach to handle such an situation: knowing that she cannot get rid of the contaminants, she marked the jar accordingly informing all potential people that might handle the specimen in the future that the preservation fluid is contaminated.
Maybe this helps
Dirk
Am 25.11.2024 um 17:27 schrieb Shoobs, Nate:
Hey Tom,
The ?floating around? was more of a casual figure of speech than a technical description. The beads were initially noticed adhering to the cotton cheesecloth bags which hold the soft bodies of individually numbered specimens, and upon shaking the jar these droplets/beads fall to the bottom and coalesce. They are certainly denser than the surrounding ethanol.
John Simmons sent me a copy of his article on mercury in wet specimens from the NHMW in Vienna [Collection Forum 2007; 22(1-2):32-36]. In that paper, the authors indicate that the only metal that would be liquid at slightly below room temperature is mercury. The temp of one jar in our collection this morning is 20.1? C. At that temperature, gallium or a gallium alloy would be solid (though some reading suggests there are some gallium alloys that have lower melting points, I don?t have any reason to think these would be present in the sample).
The evidence from the preparator?s dissertation that mercuric chloride was used to prep the specimens in question points to the substance being mercury that fell out of solution. The questions are ? what reaction took place, and what are the potentially harmful products of that or subsequent reactions?
-Nate
-
Nathaniel F. Shoobs, Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology, The Ohio State University
Museum of Biological Diversity
1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> on behalf of Tom Schi?tte <tschioette at snm.ku.dk><mailto:tschioette at snm.ku.dk>
Sent: Monday, November 25, 2024 4:01:34 AM
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu> <nhcoll-l at mailman.yale.edu><mailto:nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
Hi Nate, I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.?5 g/cm3. Best Tom Tom Schi?tte Collection manager,
Hi Nate,
I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
Best
Tom
Tom Schi?tte
Collection manager, Echinodermata & Mollusca
Natural History Museum of Denmark (Zoology)
Universitetsparken 15
DK 2100 Copenhagen OE
+45 35 32 10 48
TSchioette at snm.ku.dk<mailto:TSchioette at snm.ku.dk>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Shoobs, Nate
Sent: 22. november 2024 20:30
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
A question for the chemists in the room:
In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid ? to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
Here?s what we know about the contents of the jar:
* I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
* ? The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed.?
* The specimens are currently, to the best of my knowledge, stored in a solution of ?AGW?: (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
* There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
* The tag is not magnetic, but I don?t know if that?s because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
* It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
These are important voucher specimens, and ideally I?d like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren?t a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
-Nate
--
[Image]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
_______________________________________________
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_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
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Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
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From prc44 at drexel.edu Wed Nov 27 13:27:58 2024
From: prc44 at drexel.edu (Callomon,Paul)
Date: Wed, 27 Nov 2024 18:27:58 +0000
Subject: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated
with mercury / mystery Mercuric chloride reaction
In-Reply-To: <DM5PR0102MB3397B3EB4F37704D5D922588DC282@DM5PR0102MB3397.prod.exchangelabs.com>
References: <DM5PR0102MB339776585CB38214662B808FDC232@DM5PR0102MB3397.prod.exchangelabs.com>
<17e9e717fd6847dda6a229c33bfb009d@snm.ku.dk>
<DM5PR0102MB33973E56275D94FAC3EF29C8DC2E2@DM5PR0102MB3397.prod.exchangelabs.com>
<4e888921-bd7a-4b41-9a21-739355097cf0@leibniz-lib.de>
<6746EA1A020000B3000CF578@zuv12.verwaltung.uni-halle.de>
<d1fadded-6533-4cd1-970c-aaadf7855355@leibniz-lib.de>
<DM5PR0102MB3397B3EB4F37704D5D922588DC282@DM5PR0102MB3397.prod.exchangelabs.com>
Message-ID: <BL0PR01MB5220BF56DB433AA0FD87D9A8C3282@BL0PR01MB5220.prod.exchangelabs.com>
The tags might also be lead, or White Metal, a compound used to make "tin" soldiers.
Paul Callomon
________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Shoobs, Nate <shoobs.1 at osu.edu>
Sent: Wednesday, November 27, 2024 1:15:08 PM
To: Dirk Neumann <d.neumann at leibniz-lib.de>; Joachim H?ndel <Joachim.Haendel at zns.uni-halle.de>; nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
External.
That?s an interesting idea Joachim. I considered a copper compound because of how copper-y the green color is.
Your mentioning it made me realize that I can probably check the tag composition by opening an uncontaminated jar catalogued around the same time and doing some tests on the metal tag (mainly, to see if acid causes a copper precipitate to form). I know for sure that stainless steel and aluminum are the two most common types. But some tags could have been brass!
As a side-note, it?s a minor miracle that we did not open any of these jars (ca. 96 of them have this mercury issue) during our alcohol inventory. We rehoused thousands of specimens into new jars. But in cases where bailtops had good seals and high alc levels, we generally didn?t reopen them. According to our inventory notes, none of these lots were opened. But the ?weird green color? and ?corroding tags? are mentioned, and actually those would have been priority lots to rehouse in the next round of alc inventory work. Good that we caught this now!
Will report back with results when I have them. Thanks to everyone for the helpful ideas and suggestions so far.
-N
--
[The Ohio State University]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Dirk Neumann <d.neumann at leibniz-lib.de>
Date: Wednesday, November 27, 2024 at 1:04?PM
To: Joachim H?ndel <Joachim.Haendel at zns.uni-halle.de>, nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] [EXTERN] Re: Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
Brass tags - interesting! Knew it would be worth nudging you, Joachim, that would be a very reasonable explanation for the formation of mercury droplets on the metal tag. Concur with reasoning for the green colour stain. All the best Dirk Am
Brass tags - interesting!
Knew it would be worth nudging you, Joachim, that would be a very reasonable explanation for the formation of mercury droplets on the metal tag.
Concur with reasoning for the green colour stain.
All the best
Dirk
Am 27.11.2024 um 10:44 schrieb Joachim H?ndel:
Hi Nate,
I suspect the same as Dirk - thanks for quoting.
It is possible that the tag is not made of aluminium, but of brass.
This is also non-magnetic and possibly the copper from it could react with the mercuric chloride, producing mercury and copper chloride, which could also cause the green colouring.
But that's just a guess.
All the best
Joachim
--
Joachim Haendel
Center of Natural Science Collections
of the Martin Luther University (ZNS)
- Entomological Collection -
Domplatz 4
D-06099 Halle (Saale)
Germany
Phone: +49 345 - 55 26 447
Email: joachim.haendel at zns.uni-halle.de<mailto:joachim.haendel at zns.uni-halle.de>
>>> Dirk Neumann <d.neumann at leibniz-lib.de><mailto:d.neumann at leibniz-lib.de> 25.11.2024, 18:40 >>>
Hi Nate,
corrosive sublimate was a common "enhancer" to increase the preservative strength of ethanol; John probably covered this in his email already.
Sublimate (mercury-II-chloride, Hg Cl2) was a common additive for the preservation invertebrates; see Piechocki, Makroskopische Pr?parationstechnik Wirbellose: https://www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN<https://urldefense.com/v3/__https:/www.schweizerbart.de/publications/detail/isbn/9783510652310/Piechocki_Handel_Makroskopische_Prapara?l=EN__;!!KGKeukY!2pBnCmPa2i0AzM9hjOJ4jzp2UkOJYVLL-cPbaS1rhQSXBDmbMP59iOW-DDs-DKyZ5geUk-t-uDMGoPv__SuLcQgXZg$>
Joachim H?ndel noted on earlier posts here on NHColl dealing with mercury that a simple test would be to put a copper coin or copper wire into the fluid; in presence of sublimate, a silver mercury layer should form on the copper. He might add if I am referring wrongly to his advise.
Depending on the specimens, it might not be easy to remove the mercury completely; the easiest would be to carefully remove the specimens without disturbing too much of the mercury deposits, but for sure there is additional mercury/sublimate in the specimens, which will be difficult to remove (especially in invertebrates).
At the second fluid preservation symposium in La Chaux-de-Fonds, Celine Stoffel, a colleague from the Natural History Collection in Lausanne, Switzerland, had an interesting approach to handle such an situation: knowing that she cannot get rid of the contaminants, she marked the jar accordingly informing all potential people that might handle the specimen in the future that the preservation fluid is contaminated.
Maybe this helps
Dirk
Am 25.11.2024 um 17:27 schrieb Shoobs, Nate:
Hey Tom,
The ?floating around? was more of a casual figure of speech than a technical description. The beads were initially noticed adhering to the cotton cheesecloth bags which hold the soft bodies of individually numbered specimens, and upon shaking the jar these droplets/beads fall to the bottom and coalesce. They are certainly denser than the surrounding ethanol.
John Simmons sent me a copy of his article on mercury in wet specimens from the NHMW in Vienna [Collection Forum 2007; 22(1-2):32-36]. In that paper, the authors indicate that the only metal that would be liquid at slightly below room temperature is mercury. The temp of one jar in our collection this morning is 20.1? C. At that temperature, gallium or a gallium alloy would be solid (though some reading suggests there are some gallium alloys that have lower melting points, I don?t have any reason to think these would be present in the sample).
The evidence from the preparator?s dissertation that mercuric chloride was used to prep the specimens in question points to the substance being mercury that fell out of solution. The questions are ? what reaction took place, and what are the potentially harmful products of that or subsequent reactions?
-Nate
-
Nathaniel F. Shoobs, Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology, The Ohio State University
Museum of Biological Diversity
1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> on behalf of Tom Schi?tte <tschioette at snm.ku.dk><mailto:tschioette at snm.ku.dk>
Sent: Monday, November 25, 2024 4:01:34 AM
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu> <nhcoll-l at mailman.yale.edu><mailto:nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
Hi Nate, I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.?5 g/cm3. Best Tom Tom Schi?tte Collection manager,
Hi Nate,
I am no chemist, but I wonder about your initial statement that the silvery beads were ?floating around in the alcohol?. Do you mean on the bottom of the jar? Mercury weighs 13.5 g/cm3.
Best
Tom
Tom Schi?tte
Collection manager, Echinodermata & Mollusca
Natural History Museum of Denmark (Zoology)
Universitetsparken 15
DK 2100 Copenhagen OE
+45 35 32 10 48
TSchioette at snm.ku.dk<mailto:TSchioette at snm.ku.dk>
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu><mailto:nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Shoobs, Nate
Sent: 22. november 2024 20:30
To: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>
Subject: [Nhcoll-l] Safely rehousing specimens contaminated with mercury / mystery Mercuric chloride reaction
A question for the chemists in the room:
In examining a jar of freshwater bivalves from our wet collection, a student and I noticed that there were small silvery beads floating around in the alcohol. Upon closer inspection, we realized that these beads were actually liquid ? to my eye, it looks and acts like elemental mercury (the droplets readily coalesce and break apart, are silvery white, and denser than the surrounding alcohol).
Here?s what we know about the contents of the jar:
* I figured the fixative used on these specimens contained a mercury compound, and found this information, in the doctoral dissertation of the preparator of the sample:
* ? The entire body of each animal was fixed whole, usually in FSA fixative (40 g mercuric chloride, 50 ml glacial acetic acid, 200 ml. commercial formalin, 800 ml distilled water) (Movat, 1953). After 24 hours In this fixative, the soft parts were rinsed In tap water and dehydrated in 50%, 70%, and 80% ethanol. They were stored In 80% ethanol until needed.?
* The specimens are currently, to the best of my knowledge, stored in a solution of ?AGW?: (75% nondenatured ethanol, 3% glycerine, 22% distilled water).
* There is a metal tag, either steel or aluminum, in the jar, which is disintegrating, turning green, and forming many small grey tube-shaped tendrils of precipitate.
* The tag is not magnetic, but I don?t know if that?s because it has completely reacted, or because it is aluminum. I know that aluminum + water in the presence of ethanol tends to form Aluminum hydroxide, but this precipitate does not appear to be. It was curatorial practice from 1960-2019 to include a metal embossed tag with the cat number in wet lots, but I abolished this practice because of the tendency of metal to react with the preservatives.
* It seems evident that because there is free mercury in the jar, the mercuric chloride reacted with something in the jar. The green tinge in the alcohol makes me think that that reaction yielded some amount of chlorine gas, as well.
These are important voucher specimens, and ideally I?d like to figure out a way to safely rehouse them and keep them long term, but if there is no way to ensure they aren?t a health hazard going forward, I will contact our EHS department to coordinate disposal. Does anyone have any experience with a situation like this?
Obviously I am not opening the jars or letting anyone else near them until I can figure out what reaction(s) took place in the jar. And unfortunately, this is one jar of a few dozen 1~3 liter Le Parfait bail top jars prepared by this researcher.
-Nate
--
[Image]
Nathaniel F. Shoobs
Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
_______________________________________________
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_______________________________________________
NHCOLL-L is brought to you by the Society for the Preservation of
Natural History Collections (SPNHC), an international society whose
mission is to improve the preservation, conservation and management of
natural history collections to ensure their continuing value to
society. See http://www.spnhc.org<https://urldefense.com/v3/__http:/www.spnhc.org__;!!KGKeukY!2pBnCmPa2i0AzM9hjOJ4jzp2UkOJYVLL-cPbaS1rhQSXBDmbMP59iOW-DDs-DKyZ5geUk-t-uDMGoPv__StdyjMxng$> for membership information.
Advertising on NH-COLL-L is inappropriate.
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
****
Dirk Neumann
Collection Manager, Hamburg
Postal address:
Museum of Nature Hamburg
Leibniz Institute for the Analysis
of Biodiversity Change
Dirk Neumann
Martin-Luther-King-Platz 3
20146 Hamburg
+49 40 238 317 ? 628
d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>
www.leibniz-lib.de
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
--
Stiftung Leibniz-Institut zur Analyse des Biodiversit?tswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
Stiftung des ?ffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Gr?ter (Kaufm. Gesch?ftsf?hrer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
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