A TEXT-BOOK 



UPON THE 



PATHOGENIC BACTERIA 



AND Protozoa 



FOR STUDENTS OF MEDICINE AND PHYSICIANS 



BY 



JOSEPH McFARLAND, M. D., Sc. D. 



Professor of Pathology and Sacteriology in the University of Pennsylvania; Pathologist to the Philar 

 delpfaia General Hospital; Fellow of the College of Physicians of Philadelphia, Etc. 



NINTH EDITION, REVISED 

 WITH 330 ILLUSTRATIONS 

 A NUMBER IN COLORS 



PHILADELPHIA AND LONDON 



W= B. SAUNDERS COMPANY 



