THE JOHNS HOPKINS UNIVERSITY 

 OOL OF HYGIENE AND PUBLIC HEALTH 



DIAGNOSIS OF PROTOZOA 



AND 



WORMS PARASITIC IN MAN 



BY 



ROBERT W. HEGNER 



Associate Professor of Protozoology 



AND 



WILLIAM W. CORT 

 Associate Professor of Helminthology 



DEPARTMENT OP MEDICAL ZOOLOGY 



SCHOOL OP HYGIENE AND PUBLIC HEALTH 



THE JOHNS HOPKINS UNIVERSITY 



1921 



BALTIMORE, MARYLAND 

 U. S. A. 



X 



