BioQuip products, inc.  makes Humidity Indicator Cards which I use in my
cabinets and drawers. They contain three circled spots to indicate Relative
Humidity: 50%, 40%, and 30%.  Dimensions are 1" x 1 5/8", with black
lettering on blotting paper.  The stock numbers are 1195C - Pack of 3
($2.20), & 1195D - Pack of 8 ($8.00)
Their phone number is (310) 324-0620 or can be reached at [log in to unmask]

James I. Movich
Pasadena, CA
[log in to unmask]

-----Original Message-----
From: Conchologists of America List [mailto:[log in to unmask]]On
Behalf Of Charles Sturm
Sent: Tuesday, October 12, 1999 11:38 AM
To: [log in to unmask]
Subject: Re: Byrne's disease

Nancy,
  Once "Bynesian Decay" (my prefered term for it) had set in it cannot be
reversed though it can be halted.  Whatever acid reaction has occured is
permanent but by keeping the relative humidity low and the temperature low
and avoiding acid exposure, the decay will stop.  From my readings I
would recommend at temp of 65 degrees F., a relative humidity of 50-60%
and avoid woods, especially oak, and use acid and lignin free paper for
labels, trays etc.
  As important as controlling the temp and RH is also not hitting the
extremes.  Too low a RH and some shells will dry and crack, to high a
RH and mold will start growing.
 Charlie
****************************************************************************
**
Charlie Sturm, Jr
Research Associate - Section of Invertebrate Zoology
                     Carnegie Museum of Natural History, Pittsburgh, PA
Assistant Professor - Family Medicine

[log in to unmask]