Issued April 20, 1911. 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ANIMAL INDUSTRY. BULLETIN 135. 



A. D. MELVIN, CHIEF OH BUREAU. 



_ . 



COMPARATIVE STUDY OF METHODS OF 



I B' EXAMINING FECES FOR EVIDENCES 

 ' 5 OF PARASITISM. 



BY 



MAURICE C. HALL, 



Assistant Zoologist, Zoological Division. 



*TUA1WLM 



JAN 4 1943 

 Ul 5KA.RY 



WASHINGTON : 



GOVERNMENT PRINTING OFFICE. 

 1911. 



V 



