BERGEY'S MANUAL 



DETERMINATIVE 

 BACTERIOLOGY 



BY 

 ROBERT S. BREED 



Ixite Professor Emerilus, Cnrnell Universily, Geneva, New York 



E. G. D. MURRAY 



Research Professor, University of Western Ontario, 

 London, Ontario, Canada 



NATHAN R. SMITH 



Senior Bacteriologist, Retired, Plant Industry Station, 

 U. S. Department of Agriculture, Beltsville, Maryland 



and 



Ninety-four Contributors 



Whose Names Appear on the Immediately Following Pages 



SEVENTH EDITION 





BALTIMORE 



THE WILLIAMS & WILKINS COMPANY 



1957 



