TREASURY DEPARTMENT. 
Public Health and Marine-Hospital Service of the United States. 
Walter Wymax, Surgreon-General. 
HYGIENIC LABORATORY.— BULLETIN No. 13. 
J. ROSE>C^XJ, Director. 
May, 1903. 
A STATISTICAL STUDY OF THE INTESTINAL PARASITES 
OF 500 WHITE MALE PATIENTS AT THE UNITED 
STATES GOVERNMENT HOSPITAL FOR THE INSANE. 
By Philip E. Garrison, Brayton H. Ransom, 
AND Earle C. Stevenson. 
A PARASITIC ROUNDWORM {Agamomermis cuUcis n. n. sp.) 
IN AMERICAN MOSQUITOES {Cutex solUcitans) . 
By Ch. Wardell Stiles. 
THE TYPE SPEQES OF THE CESTODE GENUS Hymenolepis. 
By Ch. Wardell Stiles. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1903. 
