STOMACH WORMS IN SHEEP 
PREVENTION AND TREATMENT 
Prepared Jointly by the Animal Husbandry 
and Zoological Divisions 
UNITED STATES DEPARTMENT OF AGRICULTURE 
DEPARTMENT CIRCULAR 47 
Contribution from the Bureau of Animal Industry 
JOHN R. MOHLER, Chief 
August, 1919 
WASHINGTON : GOVERNMENT PRINTING OFFICE: 1919 
