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the'Vrinciples 



BACTERIOLOaY: 



A PRACTICAL MANUAL FOR STUDENTS 

 AND PHYSICIANS. 



BY 



A. c. !a.bbott/m.d., 



PROFESSOE 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. 



LEA BROTHERS & CO., 



PHILADELPHIA AND NEW YORK. 



1897. 



MEDICAL LIBRARY m,33. 



