Sy 
Issued August 22, 1911. 
u.S, DEPARTMENT OF AGRICULTURE, 
FARMERS’ BULLETIN 463. 
THE SANITARY PRIVY. 
BY 
C. W. STILES, 
Professor of Zoology, United States Public Health and Marine-Hos pital Service, 
' and Consulting Zoologist, Bureau of Animal Industry, 
AND 
L. L. LUMSDEN, 
Passed Assistant Surgeon, United States Public Health and 
Marine-Hospital Service. 
d''31853! 
WASHINGTON 
GOVERNMENT PRINTING OFFICE. 
1911. 
