[Nhcoll-l] Tips for tiny jars?

[John E Simmons]

Thanks for the clarification and the image. How are these jars sealed?

John E. Simmons
US Fulbright Senior Scholar
Writer and Museum Consultant, Museologica
*and*
Research Associate, Earth and Mineral Sciences Museum & Art Gallery, Penn
State University
*and*
Investigador Asociado, Departamento de Ornitología, Museo de Historia
Natural, Universidad Nacional Mayor de San Marcos, Lima


On Thu, Jul 2, 2026 at 11:45 AM Claire Smith <claire.smith at reading.ac.uk>
wrote:

> Apologies all, for the lack of clarity — I'm talking about old glass
> cylinders with a flat glass lid like this one:
>
>
> Best wishes,
> Claire
>
>
>
> *******
>
> *Claire Smith *(she/her), AFHEA
>
> *Postdoctoral Research Associate, Cole Museum of Zoology*
>
> University of Reading
> *claire.smith at reading.ac.uk* <claire.smith at reading.ac.uk>
>
> *www.linkedin.com/in/wetconservatrix*
> <http://www.linkedin.com/in/wetconservatrix>
> Social media: @wetconservatrix
>
>
> ------------------------------
> *From:* Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Claire
> Smith <claire.smith at reading.ac.uk>
> *Sent:* 02 July 2026 16:22
> *To:* nhcoll-l <nhcoll-l at mailman.yale.edu>
> *Subject:* [Nhcoll-l] Tips for tiny jars?
>
> External email: Treat content with caution.
>
> Hi everyone (with apologies for cross-posting),
>
> We have a selection of small specimens in our fluid collection, in jars of
> around 10 to 25 mL, and they evaporate incredibly quickly. We have to top
> them up almost annually, which isn't great for the specimens. The rate of
> evaporation doesn't seem to be worse with a particular fluid, or with a
> particular sealant.
>
> Do those of you who work with fluid collections have any tips for how to
> prevent these tiny jars from evaporating so quickly?
>
> Best wishes,
> Claire
>
>
>
> *******
>
> *Claire Smith *(she/her), AFHEA
>
> *Postdoctoral Research Associate, Cole Museum of Zoology*
>
> University of Reading
> *claire.smith at reading.ac.uk* <claire.smith at reading.ac.uk>
>
> *www.linkedin.com/in/wetconservatrix*
> <http://www.linkedin.com/in/wetconservatrix>
> Social media: @wetconservatrix
>
>
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