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Date: | Fri, 10 Dec 2004 08:07:05 -0500 |
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David,
At the carnegie Museum we recently tested some cotton that was yellowing.
It tested as being very acidic. Other samples of cotton were more neutral.
If you use cotton, buy a good grade and get a pH Testing pen to see if the
cotton is acidic. These pens are most readily obtained from companies such
as Light Impressions (where I bought mine), University Products, and
Gaylord.
Regards,
Charlie
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Charlie Sturm, Jr
Research Associate - Section of Mollusks
Carnegie Museum of Natural History
Pittsburgh, PA, USA
Assistant Professor - Family Medicine
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On Mon, 6 Dec 2004, DAVID LUM wrote:
> Hi.
> I am well aware of the detrimental effects acidic fumes produced by
> wood can have on high gloss shells, but has anyone experienced any bad
> effects with packing specimen shells like cowries and olives in cotton?
> Your insights would be much appreciated.
>
> Aloha,
> Dave Lum
> Pearl City, Hawaii
>
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