Does anybody know what "EUPERAL" media is?

[Sung Park]

	I am a undergraduate student at University of Rochester.  Recently I have 
found an article published on "Stain Technology" in May 1973.  The paper is 
called "Euperal as a mounting medium for preserving fluorescence of Aniline Blue 
in plant material".  I have tried to find about Euperal in numerous places but I 
failed to find it.  Hoever, I have found something in a book called "Euparin" 
which is derived from roots of Eupatorium purpureum.  This is only information I 
could find so far.
	Does anybody know what this Euperal is?  Also, does anybody know how I can 
make or purchase this Euperal from?  I really appreciate with any kind of 
information.  Thanks to everybody...  

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Sung Park
spark at arlab.biology.rochester.edu