

RODENT PESTS OF THE I'FARM- 



DAVID E. LANTZ 



Assistant Biologist 





Columbia Ground Squirrel 



BI23M 



FARMERS' BULLETIN 932 

 UNITED STATES DEPARTMENT OF AGRICULTURE 



Contribution from the Bureau of Biological Survey 

 E. W. NELSON. Chief 



Washington, D. C. 



Issued July, 1918 



Show tliis bulletin to a neighbor. Additional copies may be obtained free from the 

 Division of Publications, United States Department of Agriculture 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 1918 



