Issued April 29, 1911 
U.S. DEPARTMENT OF AGRICULTURE. 
FARMERS’ BULLETIN 450. 
SOME FACTS ABOUT MALARIA. 
BY 
L. O. HOWARD, Px. D., 
ENTOMOLOGIST AND CHIEF, BUREAU OF ENTOMOLOGY. 
INS 
| 
i} 5 
NZ 
Cr217356 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE, 
1911. 
