VOLUME V NUMBER 3 



JOURNAL 



OF 



BACTERIOLOGY 



OFFICIAL ORGAN OF THE SOCIETY OF AMERICAN 

 BACTERIOLOGISTS 



MAY, 1920 



EDITOR-IN-CHIEF 



C.-E. A. Winslow 



It is characteristic of Science and Progress that they continually 

 open new fields to our vision. — Pasteur. 



PUBLISHED BI-MONTHLY 



WILLIAMS & WILKINS COMPANY 



BALTIMORE, U. S. A. 



THE CAMBRIDGE UNIVERSITY PRESS 

 FETTER LANE, LONDON; E. C. 



Entered as Becond-claes matter April 17, 1916, at the poetoffiee at Baltimore. Maryland, under the act of 



March 3, 1879. Acceptance tor mailing at special rate of postage provided for in bection 1103, 



Act of October 3. 1917. Authorized on July 16, 1918. 



Copyrighted, 1920, Williams and Wilkins Company 



th.1 na + f $5.00 per volume, United States, Mexico, Cuba 

 c+TvniH 1 $ 5 - 25 P er volume, Canada 

 postpaid ^550 per volume, other countries 



