( .,-2 the TJ S. Forest Service*) 



PRAIRIE! DOGS AND 

 TEE GRAZING INDUSTRY 



Washington, June 25 . Ae a detail of its canpalgn 

 against prairia dogs on the sheep and cattle ranges of the 

 77est r the Biological Survey of the Department of Agriculture 

 is using carbon bisulphide in connection with eight tons of 

 poisoned grain for the extermination of the little pests 

 on the ranges of the Coconino national Forest, Arizona. 



Generally the Biological Survey works to prevent 

 the extinction of "birds and mam-rials. In the present in- 

 stance it justifies its war against prairie dogs on the 

 rr?.rciple of the campaign against the bubonic -plague rat 

 ; id i ,]-.-:. irr el, or against the rabbit which girdles fruit 

 trees, 



The damage <?'..:: > by the prairie dog. it is pointed ^ 

 out, affects the sto--iV ; raising industry in tovo ways. First, 

 many acres are laid bare in the neighborhood of prairie dog 

 villages, and the amount of food available for cattle is 

 proportionally reduced. Second, valuable animals, frequently 

 horses, have to be killed after they havo broken a leg in a 

 prairie dog hole. 



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