A MANUAL 

 of the 



ASPERGILLI 



By 



CHARLES THOM 



Collaborator, Northern Regional Research Laboratory, 



Formerly Principal Mycologist, Bureau of 



Plant Industry, U. S. Department of 



Agriculture, Washington, D. C. 



and 

 KENNETH B. RAPER 



Senior Microbiologist. Fermentation Division, Northern Regional 



Research Laboratory, Bureau of Agricultural and 



Industrial Chemistry, U. S. Department of 



Agriculture, Peoria, Illinois 



BALTIMORE 



THE WILLIAMS & WILKINS COMPANY 



1945 



