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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">A commercial product that might work for this is Carosafe:
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.carolina.com_teacher-2Dresources_Interactive_specimens-2Din-2Dcarafe-2Dproduct-2Dand-2Dsafety-2Dinformation-2Dfor-2Deducators_tr11091.tr&d=AwMFAg&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=CLFZJ3fvGSmDp7xK1dNZfh6uGV_h-8NVlo3fXNoRNzI&m=THqNSwubgsbE1YpRJzzmALBR8Tog9RWC4ehIL6bzRns&s=VPiqTIkWIqguSo015Z0PTyMjy7_eEowLRXNgKWJJzus&e=">www.carolina.com/teacher-resources/Interactive/specimens-in-carafe-product-and-safety-information-for-educators/tr11091.tr</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">PC<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black">Paul Callomon</span></b><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black"><br>
<i>Collection Manager, Malacology, Invertebrate Paleontology and General Invertebrates</i></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black">Academy of Natural Sciences of Drexel University, Philadelphia</span></b><b><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></b></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black">1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA</span><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black"><br>
<i><a href="mailto:callomon@ansp.org" target="_blank">callomon@ansp.org</a> Tel 215-405-5096 - Fax 215-299-1170</i></span><span style="font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> nhcoll-l-bounces@mailman.yale.edu [mailto:nhcoll-l-bounces@mailman.yale.edu]
<b>On Behalf Of </b>Simon Moore<br>
<b>Sent:</b> Monday, August 03, 2015 10:58 AM<br>
<b>To:</b> Esther Dondorp<br>
<b>Cc:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> Re: [Nhcoll-l] Transferring specimens from 70% alcohol into water for scientific drawing, and back again....<o:p></o:p></span></p>
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<p class="MsoNormal">Hi Esther,<o:p></o:p></p>
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<p class="MsoNormal">Yes, dunking amphibians from 70% alcohol to water and then back again may result in some osmotic shock. Have you considered 10% Opresol (in deion. water). It’s non-flammable, non-toxic (also non-intoxicating) &c but is one of the glycol-based
preservatives, so many are a little shy of using it. Bear in mind that large vertebrates do not survive well in glycol preservatives after 5 years so it shouldn’t be used as a long-term preservative in this context. Afterwards they may be returned to 70%
alc. via the usual dehydration ladder.<o:p></o:p></p>
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<p class="MsoNormal"><span style="color:black">With all good wishes, Simon.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Simon Moore MIScT, RSci, FLS, ACR<br>
Conservator of Natural Sciences and Cutlery Historian,<br>
<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.natural-2Dhistory-2Dconservation.com&d=AwMF-g&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=CLFZJ3fvGSmDp7xK1dNZfh6uGV_h-8NVlo3fXNoRNzI&m=-R4CRTNmZTa_F1TJCOzyw6BNsmBDRR8Do5v15erPSYc&s=IQ1avMuCnX3m_7dJrkLW9I5V7pAxPBSCcJ8AaMMCxrY&e=">www.natural-history-conservation.com</a> <o:p></o:p></span></p>
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<p class="MsoNormal">On 3 Aug 2015, at 15:46, Esther Dondorp <<a href="mailto:esther.dondorp@naturalis.nl">esther.dondorp@naturalis.nl</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Dear All,<o:p></o:p></p>
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<p class="MsoNormal">We have a project for which our scientific illustrator needs to draw salamanders/frogs from the spirit collection. The specimens are stored in 70% alcohol (some of them probably have been fixed in formalin before but I am not sure) and
during the drawing process they take them out of the jar and submerge them in water. This can take hours. I think this is not good for the specimens and will damage them eventually, also because after that we put them into 70% alcohol again. This will be quite
a shock to the tissue I guess. But because they always did it like this, I started doubting myself. What do you think?<o:p></o:p></p>
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<p class="MsoNormal">Would there be some other substance to put the specimens in during the drawing process that would be less damaging for the specimens and also not intoxicate the illustrator? Or maybe we could use a lower percentage of alcohol? <o:p></o:p></p>
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<p class="MsoNormal">Many thanks, any comment on this appreciated.<o:p></o:p></p>
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<p class="MsoNormal">Esther Dondorp<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:7.5pt">Collection manager Reptiles and Amphibians, Naturalis</span><o:p></o:p></p>
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