

BIOLOGICAL STAINS 



U^. 



e^ 



A Handbook on the Nature and Uses of the Dyes 

 Employed in the Biological Laboratory 



By H. J. conn 



Secretary, Biological Stain Commission 



Prepared vnth the collaboration of 



Various Members of the 



Biological Stain Commission 



SIXTH EDITION 



Revised with the assistance of 

 Elmer H. Stotz and Mary A. Darrow 



Published for the 



biological stain commission 



by 

 THE WILLIAMS & WILKINS COMPANY 



Baltimore 2, Maryland 



