tssued February 7, 1910. 



U. S. DKPARTMKNT OF AGRICULTURE 



BUREAU OF ANIMAL INDUSTRY.— Bulletin 118. 



A. D. MELVIN . Bureau. 



CULTURAL STUDIES OF SPECIES 

 OF PENICILLIUM. 



BY 



BOTANICAL 

 GARD 



CHARLES THOM, Ph. D., 

 Mycologist in Cheese Investigations \ Hairy Division. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1910. 



