RE: Coverslipper vendors

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From:"Gary W. Gill" <>
To:<>, <>
Date:Wed, 11 Aug 1999 22:59:09 -0500
Content-Type:text/plain; charset="iso-8859-1"


	Do you mean 1.5 mm thick or No. 1-1/2 thickness cover glasses?  The two are
not the same.  1.5 mm thick would be half again as thick as a micro slide,
which I'm sure you don't mean.  If, however, you mean No. 1-1/2, you don't
want that thickness for cytological or histological applications.  You
really want, whether you know it or not, No. 1 thickness cover glasses.  No.
1-1.2 cover glasses are correct ONLY if the specimen is in direct contact
with the underside of the cover glass -- which NEVER occurs in routine
practice.  You should be asking for "coverslippers" that handle No. 1
thickness cover glasses, which are thinner but which anticipate the added
thickness of the mounting medium.  Mounting medium interacts with light as
though it is glass and is usually substantially thick in terms of the
tolerance limits of high dry objectives to deviations in thickness from that
intended.  Obviously, No. 1 thickness cover glasses are also recommended for
manual coverslipping applications.

Gary W. Gill

-----Original Message-----
From: []
Sent: August 11, 1999 1:14 PM
Subject: Coverslipper vendors

Hi coverslipper vendors-We are searching for a new coverslipper that uses
glass coverslips (1.5mm thick) for use in our pharmaceutical lab.  Please
contact us directly.

Thank you,
Kate Rhodes
SmithKline Beecham Pharmaceuticals
709 Swedeland Rd.
King of Prussia, PA 19406
FAX 610-270-7202

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