4^'/^r 



A MANUAL 



OF THE 



PENICILLIA 



BY 



KENNETH B. RAPER 



Principal Microbiologist, Fermentation Division, Northern Regional 



Research Laboratory, Bureau of Agricultural and Industrial 



Chemistry, U. S. Department of Agriculture, Peoria, Illinois 



AND 



CHARLES THOM 



Collaborator, U. S. Department of Agriculture, Formerly Principal 



Mycologist, Bureau of Plant Industry, U. S. Department 



of Agriculture, Peoria, Illinois 



WITH THE TECHNICAL ASSISTANCE AND ILLUSTRATIONS BY 



DOROTHY I. FENNEL 



Assistant Microbiologist, National Scieruie Fund and Cooperative Agent, 

 U, S. Department of Agriculture, Peoria, Illinois 



Thb Manual was prepared under the joint sponsorship and 

 support of the National Science Fund, through a grant from 

 the George F. Baker Charitable Trust Fund, and the North- 

 em Regional Research Laboratory, Bureau of Agricultural 

 and Industrial Chemistry, U. S. Department of Agriculture. 





.pif 

 R3& 



BALTIMORE 



THE WILLIAMS & WILKINS COMPANY 



1949 



