Circular No. 148 



t*^**^^^^**^*^***!*^*!*** ** !**^^** * *****^*** * *^ ^ 



Parasites 



and Parasitic Diseases 



of Horses 



By 



BENJAMIN SCHWARTZ, Chief, Zoological Division 



MARION IMES, formerly Veterinarian 



and 



A. O. FOSTER, Parasitologist 



Zoological Division, Bureau of Animal Industry 



For sale by the Superintendent of Documents, Washington 25, D. C. Price 20 cents 



UNITED STATES DEPARTMENT OF AGRICULTURE 

 WASHINGTON, D. C. 



Issued November 1930; revised July 1948 



MR 23 Jy.c" 



