VOLUME VI NUMBER 3 



JOURNAL 



OF 



BACTERIOLOGY 



OFFICIAL ORGAN OF THE SOCIETY OF AMERICAN 

 BACTERIOLOGISTS 



MAY, 1921 



BDITOR-IN-CHnV 



C.-E. A. WmsLow 



It t« characteristic of Science and Progress that they continually 

 open new fields to our vision. — Pabtsttb. 



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