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UNITED STATES DEPARTMENT OF AGRICULTURE 

 CIRCULAR No. 148 



Washington, D. C. 



Issued November 1930 

 Revised January 1933 

 Slightly revised February 1942 



Parasites 



and Parasitic Diseases 



of Horses 



By 



BENJAMIN SCHWARTZ 



Senior Zoologist 



MARION IMES 



Senior Veterinarian 

 and 



WILLARD H. WRIGHT 



Associate Veterinarian 

 Zoological Division, Bureau of Animal Industry 



3 



For sale by the Superintendent of Documents, Washington, D.C. *..*.,.,......,. Price 10 i 



