THE PRINCIPLES 



OF 



CULTURAI 



LIBRARY, 



I'MVERSITY 



r \r TF 



BACTERIOLOGY: 



A PRACTICAL MANUAL FOR STUDENTS 

 AND PHYSICIANS. 



BY 



A. C. ABBOTT, M.D., 



PROFESSOR OF HYGIENE. AND DIRECTOR OF THE LABORATORY OF HYGIENE, 

 UNIVERSITY OF PENNSYLVANIA. 



FOURTH EDITION, ENLARGED AND THOROUGHLY 

 REVISED. 



With 106 Illustrations, of which 19 are colored. 



e- 



LEA BROTHERS & CO., 

 PHILADELPHIA AND NEW YOKK. 



1897. 



