MEDICAL 

 BACTERIOLOGY 



BY 



JOHN A. RODDY, M. D. 



ASSOCIATE IN HYGIENE AND BACTERIOLOGY, JEFFERSON MEDICAL COLLEGE; CHIEF 



ASSISTANT, DEPARTMENT OF CLINICAL MEDICINE, JEFFERSON HOSPITAL; 



PROFESSOR OF HYGIENE AND BACTERIOLOGY, PHILADELPHIA 



COLLEGE OF PHARMACY; SOMETIME SEROLOGIST TO THE 



PHILADELPHIA GENERAL HOSPITAL', MAJOR, 



MEDICAL SECTION O. R. C., U. S. A. 



WITH 46 ILLUSTRATIONS OF 

 WHICH 8 ARE PRINTED IN COLORS 



PHILADELPHIA 



P. BLAKISTON'S SON & CO, 



1012 WALNUT STREET 



