<div dir="ltr">Hi Tonya,<div><br></div><div>I just want to echo what everyone is saying: freezing good, condensation bad. So if you freeze them with plastic bags or any other plastic protection, then the condensation will occur on the protection and not the eggs. This is a general rule for freezing always. Don't put the objects/specimens directly into the freezer, enclose them first. And when they come out, don't take them out of the enclosures right away, wait 24 hours and let them acclimate.</div><div><br></div><div>About other materials you shouldn't freeze, there are some that could get severely damaged by freezing such as bark paintings, glass negatives (and most glass), fluid specimens, paintings and many other works of art or historic materials you may have in your collection besides specimens. If you have any particular questions, don't hesitate to ask. I know you're trying to move into this new, clean facility and avoid bringing anything with you, but it is important to think that this risk can get mitigated but not completely eradicated, so monitoring post move is always a good idea, so you can treat specific problems that may arise.</div><div><br></div><div>Best,</div><div>Mariana</div><div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px"><font color="#351c75"><b>Mariana Di Giacomo, PhD</b></font></div><div style="font-size:12.8px"><b style="color:rgb(53,28,117);font-size:small">Natural History Conservator, Yale Peabody Museum</b><div style="font-size:small"><span style="color:rgb(53,28,117)">Associate Editor, Collection Forum, SPNHC </span><br></div><div style="font-size:small"><span style="color:rgb(53,28,117)">Secretary/Communications APOYOnline</span></div><div style="font-size:small"><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El mié, 12 may 2021 a las 18:52, Haff, Tonya (NCMI, Crace) (<Tonya.Haff@csiro.au>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div lang="EN-AU" style="overflow-wrap: break-word;">
<div class="gmail-m_6076948849388133003WordSection1">
<p class="MsoNormal"><span>Thanks everyone for your responses to this question. It’s an interesting point about the potential for some of the writing on the eggs to be water soluble. In such a case is something like anoxia
or high CO2 not preferable to freezing? And yes I guess I do know that the insides of eggs can be delicious to things like carpet beetle, and indeed I have seen some old evidence of such in our collection. We have 20k+ clutches going on 40k, and we are going
to move to a new building in a few years. In light of that I would like the most practical solution that minimises risk to the egg collection but still ensures we aren’t accidentally bringing a pest problem with us. But it sounds like the consensus is that
freezing would be ok, so long as we make sure everything is well sealed in plastic first?
<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>As a follow on to this, are there any other types of collections (other than slides and fluids) that people absolutely don’t freeze?<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>Thanks!<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>Tonya<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<div>
<div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Thomas Labedz <<a href="mailto:tlabedz1@unl.edu" target="_blank">tlabedz1@unl.edu</a>>
<br>
<b>Sent:</b> Wednesday, 12 May 2021 10:58 PM<br>
<b>To:</b> Rogers, Steve <RogersS@CarnegieMNH.Org>; Haff, Tonya (NCMI, Crace) <Tonya.Haff@csiro.au>; <a href="mailto:nhcoll-l@mailman.yale.edu" target="_blank">nhcoll-l@mailman.yale.edu</a><br>
<b>Subject:</b> RE: freezing blown eggs<u></u><u></u></span></p>
</div>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span lang="EN-US">Tonya<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Agreeing with Stephen I’ve seen insects in egg collections. I agree strongly with freezing in a plastic container such that condensation does not occur directly on the egg when removed from freezer. While having no direct
evidence I suspect that some inks used for curatorial markings on eggs might be water soluble or be poorly bound to the egg surface and condensation poses a risk of information loss.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Thomas<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif">Thomas E. Labedz (Mr.), Collections Manager<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif">Division of Zoology and Division of Botany<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif">University of Nebraska State Museum<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif">Morrill Hall<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif">645 North 14th Street<br>
Lincoln, NE 68588-0338<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<div>
<div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Nhcoll-l <<a href="mailto:nhcoll-l-bounces@mailman.yale.edu" target="_blank">nhcoll-l-bounces@mailman.yale.edu</a>>
<b>On Behalf Of </b>Rogers, Steve<br>
<b>Sent:</b> Wednesday, May 12, 2021 6:13 AM<br>
<b>To:</b> Haff, Tonya (NCMI, Crace) <<a href="mailto:Tonya.Haff@csiro.au" target="_blank">Tonya.Haff@csiro.au</a>>;
<a href="mailto:nhcoll-l@mailman.yale.edu" target="_blank">nhcoll-l@mailman.yale.edu</a><br>
<b>Subject:</b> Re: [Nhcoll-l] freezing blown eggs<u></u><u></u></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-family:Arial,sans-serif;color:tomato">Non-NU Email</span><span lang="EN-US"><u></u><u></u></span></p>
<div class="MsoNormal" align="center" style="text-align:center"><span lang="EN-US">
<hr size="2" width="100%" align="center">
</span></div>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;color:black">Greetings Tonya,<u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;color:black"><u></u> <u></u></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;color:black">The entire inside lining of the egg is certainly susceptible to being eaten. I blew a series of eggs once and did not put them in my screened in drying cabinet. I ended up getting
a few phorid flies find their way through the holes, breeding and multiplying. I have also seen various small beetles inside older eggs in the collection within the genus <i>Anthrenus</i>. The cotton surrounding the egg set showing past infestations.<u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;color:black"><u></u> <u></u></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;color:black">I would recommend freezing them like you would other dry specimens, inside plastic so no condensation on the specimens happens after bringing them up to room temperature.<u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;color:black"><u></u> <u></u></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="color:black">Stephen P. Rogers (Mr.) </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="color:black">Collection Manager of Section of Birds </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="color:black">Carnegie Museum of Natural History </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="color:black">4400 Forbes Avenue </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="color:black">Pittsburgh PA 15213-4080 </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="color:black">Phone: 412-622-3255 </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="color:black">Email:
<a href="mailto:rogerss@CarnegieMNH.org" target="_blank">rogerss@CarnegieMNH.org</a> </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="font-size:9pt;line-height:105%;color:black">*************************************************** </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="font-size:9pt;line-height:105%;color:black">The views, opinions, and judgments expressed in this message </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="font-size:9pt;line-height:105%;color:black">are solely those of the author. The message contents have not </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="font-size:9pt;line-height:105%;color:black">been reviewed or approved by Carnegie Museums of Pittsburgh </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:105%"><span lang="EN" style="font-size:9pt;line-height:105%;color:black">***************************************************</span><span lang="EN-US" style="font-size:9pt;line-height:105%;color:black"> </span><span lang="EN-US" style="color:black"><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;color:black"><u></u> <u></u></span></p>
</div>
<div class="MsoNormal" align="center" style="text-align:center"><span lang="EN-US">
<hr size="2" width="98%" align="center">
</span></div>
<div id="gmail-m_6076948849388133003divRplyFwdMsg">
<p class="MsoNormal"><b><span lang="EN-US" style="color:black">From:</span></b><span lang="EN-US" style="color:black"> Nhcoll-l <<a href="mailto:nhcoll-l-bounces@mailman.yale.edu" target="_blank">nhcoll-l-bounces@mailman.yale.edu</a>> on behalf of Haff, Tonya (NCMI, Crace)
<<a href="mailto:Tonya.Haff@csiro.au" target="_blank">Tonya.Haff@csiro.au</a>><br>
<b>Sent:</b> Wednesday, May 12, 2021 12:35 AM<br>
<b>To:</b> <a href="mailto:nhcoll-l@mailman.yale.edu" target="_blank">nhcoll-l@mailman.yale.edu</a> <<a href="mailto:nhcoll-l@mailman.yale.edu" target="_blank">nhcoll-l@mailman.yale.edu</a>><br>
<b>Subject:</b> [Nhcoll-l] freezing blown eggs</span><span lang="EN-US"> <u></u><u></u></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US"> <u></u><u></u></span></p>
</div>
</div>
<div>
<div>
<p class="gmail-m_6076948849388133003xmsonormal">Hello all,<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal"> <u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">I am wondering if any of you have thoughts on freezing egg collections for pest control? I imagine that it is probably ok, but then I wonder if there could be problems to the shell structure. Note I realise that there is not much for museum
pests to eat in a blown egg, but there are lots of places for them to hide in and around the their housing. As usual, any thoughts or feedback would be very appreciated!
<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal"> <u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">Cheers,<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal"> <u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">Tonya<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal"> <u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">---------------------------------------------------------<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">Dr Tonya Haff<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">Collection Manager<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">Australian National Wildlife Collection<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">National Research Collections Australia, CSIRO<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">Canberra, Australia <u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">Phone: (+61) 02 6242 1566 (office)<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal">(+61) 0419 569 109 (mobile)<u></u><u></u></p>
<p class="gmail-m_6076948849388133003xmsonormal"> <u></u><u></u></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"><br>
<br>
<br>
</span><span lang="EN-US" style="font-size:7.5pt;font-family:"Times New Roman",serif">The information contained in this message and/or attachments is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender
and delete the material from any system and destroy any copies. Any views expressed in this message are those of the individual sender.
</span><span lang="EN-US"><u></u><u></u></span></p>
</div>
</div>
_______________________________________________<br>
Nhcoll-l mailing list<br>
<a href="mailto:Nhcoll-l@mailman.yale.edu" target="_blank">Nhcoll-l@mailman.yale.edu</a><br>
<a href="https://mailman.yale.edu/mailman/listinfo/nhcoll-l" rel="noreferrer" target="_blank">https://mailman.yale.edu/mailman/listinfo/nhcoll-l</a><br>
<br>
_______________________________________________<br>
NHCOLL-L is brought to you by the Society for the Preservation of<br>
Natural History Collections (SPNHC), an international society whose<br>
mission is to improve the preservation, conservation and management of<br>
natural history collections to ensure their continuing value to<br>
society. See <a href="http://www.spnhc.org" rel="noreferrer" target="_blank">http://www.spnhc.org</a> for membership information.<br>
Advertising on NH-COLL-L is inappropriate.<br>
</blockquote></div>