DEC 3 1 1929 
Technical Bulletin No. 134 
November, 1929 
RED-SQUILL POWDERS 
AS RATICIDES 
BY 
J. C. MUNCH 
Consulting Pharmacologist 
JAMES SILVER 
Associate Biologist 
E. E. HORN 
Associate Biologist 
Division of Predatory-Animal and Rodent Control 
Bureau of Biological Survey 
United States Department of Agriculture, Washington, D. C. 
le by the Superintendent of Documents, Washington, D. C. 
Price 10 cents 
