Dear Sharon,

Sorry I must have missed the start of these emails, but the thickness of
glass required is 1/4 inch or 6mm.
They can be made from microscope slides by hand, but that's  another story,
and as you have a Ralf knife maker not necessary.

Best Regards

Alan Bright

Bright Instrument Co.Ltd.
St Margarets Way
Huntingdon
PE18 6EB
England

Tel No:+44 (0)1480 454528
Fax No:+44 (0)1480 456031
Email: AlanBright@brightinstruments.com
Web Site: www.brightinstruments.com


-----Original Message-----
From: Marshall, Sharon, Mrs <marshall@anat.uct.ac.za>
To: kna101@utdallas.edu <kna101@utdallas.edu>; histonet@pathology.swmed.edu
<histonet@pathology.swmed.edu>
Date: Thursday, October 07, 1999 10:49
Subject: Ralph Knives


Hi Karen,

Tried your method to make glass knives but did not have much success.
If you have any references I would appreciate having them. I actually
have a glass knife making machine for Ralph Knives which I gave up on
ages ago.  I would like to give it another bash as I have the holder
for Ralph knives for the micrtome in my lab.
I know they are pretty tricky to make.  I have never been sure as to
the thickness of the glass one should use.

Many Thanks,
Sharon Marshall
e-mail: marshall@anat.uct.ac.za