<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div><br></div>Hello, <div>I’m working on the preservation of entomological collections in France, and I want to deepen my practical knowledge. I am looking for someone with knowledge of chemical interactions between specimens and fumigants. I have observed some crystals on pinned insects. When I touch the crystals with a brush, they break down into powder. In the entomological storage box, there is, I think, some naphthalene. I am supposing that the naphthalene is somehow recrystallising on the insect bodies?<div class="">I have seen a reference: Kelman, Lisa ( <a href="https://www.bcin.ca/bcin/detail.app?id=182461" class="">https://www.bcin.ca/bcin/detail.app?id=182461</a>)), but cannot find the article.<div class="">The specimens date from the 1930’s. The naphthalene, I think has been present for at least 30 years.</div><div class="">If you require photo’s of this phenomenon please reply to me off list. </div><div class="">Many thanks,</div><div class=""><br></div></div><div>
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