degreasing

[Ron Gatrelle]

----- Original Message -----
From: "Mark Walker" <MWalker at gensym.com>
To: <leps-l at lists.yale.edu>
Sent: Sunday, January 13, 2002 5:45 PM
Subject: RE: degreasing


> The most serious case of the phenomenon described by Richard Worth that I
> have seen occurred on a very large Pierid I caught in Rishikesh, Uttar
> Pradesh, India in 2000.  I relax with only water, so Stan's suggestion
> wouldn't apply.  The bug was big and white - with black stripes and a
slight
> bluish tint.  I thought I had spilled ink on the wings at first - the
> blue-green staining ran like water colors.  There was significant
> condensation in the relaxer, and it was little drops of water that were
the
> culprits.  I hadn't seen this before - at least not to this extent.  It
was
> almost as if the bug was painted, and I was ruining the masterpiece with
> exposure to water.
>
> I have no idea what chemical is responsible, but the secret is clearly
> keeping the specimen away from condensation.
>
> Mark Walker.
>

One might try water without ammonia, chloramines, or chlorine.  What comes
out of the tap is pretty chemical laden -  unusable as is for fish.  Treat
your tap water with something like AmQuel first and see what happens on a
disposable specimen.

Ron


 
 ------------------------------------------------------------ 

   For subscription and related information about LEPS-L visit:

   http://www.peabody.yale.edu/other/lepsl