TREASURY DEPARTMENT 
Public Health and Marine-Hospital Service of the United States 
Walter Wymax, Surgeon-General 
HYGIENIC LABORATORY.— BULLETIN No. 37 
J. ROSE>:^U, Director 
June, 1908 
INDEX-CATALOGUE OE 
MEDICAL AND VETERINARY ZOOLOGY 
SUBJECTS; 
TREMATODA AND TREMATODE DISEASES 
BY 
CH. WARDELL STILES 
AND 
ALBERT HASSALL 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1908 
