JOURNAL OP^ BACTERIOLOGY 



Ol'l-ICIAI, OIUIAN OI- Tin: SUCIIOIY or AMEItlrAN BACTIOKIOI.OGISTS 



DEVOTED TO THE ADVANCEMENT AND DIS- 

 SEMINATION OF KNOWLEDGE IN HECiAUD TO 

 THE BACTERIA AND OTHER MICRO-ORGANISMS 



Editorial Board 



Edilor-in-Chief 

 C.-E. A. WINSLOW 



Yale Medical School, New Haven, Conn. 



A. Parker Kitchens LoRB A. Rogers, Ex officio 



Advisory Editors 



P P n .-- F p GoRiiAM C. E. Makshall M. .1. Rosknau 



liEBrcnANAN F.' C. HAnniso.v V. A.Moouk A.W.Williams 



PFCl^rk E.O..I0RDAN L.F.llETT.iKH H. Zinsser 



¥. P. Gay C. B. Lipman L. A. Rogers 



CONTENTS 



S. Henry Aybrs and Courtland S. Mudge. The Relation of Vitaniincs to the Growth 

 of a Strpptococciis ^^ 



James M. Sherman and George E. Holm. Salt Effects in Bacterial Growth. TT. The 

 Growth on Bact. coli in Relation to H-Ion Concentration 4C5 



Ivan E. Wallin. A Note on the Morphology of Bacteria Symbiotic in the Ti.ssues of 

 Higher Organisms '^'^ 



WiLBURT C. Davison. Observations on the Properties of Bacteriolysants (D'Herelle's 

 Phenomenon, Bacteriophage, Bacteriolytic Agent, etc.). Part 1 475 



WiLBURT C. Davison. Observations on the Nature of Bacteriolysants (D'Herelle's 

 Phenomenon, Bacteriophage, Bacteriolytic Agent, etc.). Part II 491 



George F. Reddish and Leo F. Rettger. Clostridium putrificum (B. putrificus 

 Bienstock), a Distinct Species 505 



J. Howard Brown and Paul E. Howe. Transparent Milk as a Bacteriological Medium. 511 



G. J. HucKER and W. A. Wall. The Use of Agar Slants in Detecting Ammonia Pro- 

 duction and its Relation to the Reduction of Nitrates 515 



H. J. Conn, K. N. Atkins, H. J. Brown, F. Eberson, G. E. Harmon, G. J. Hucker, 

 F. W. Tanner and S. A. Waksman. Methods of Pure Culture Study. Report of 

 Committee on Bacteriological Technic 519 



H. J. Conn. -An Investigation of American Gentian Violets. Report of Committee 

 on Bacteriological Teclinic •''-^ 



Abstracts of American and foreign bacteriological literature appear in a separate journal, 

 Abstracts of Baclerwlotjy, published monthly by the Williams & Wilkins Company, under 

 the editorial direction of the Society of .Vmerican Bacteriologists. Back volumes can be 

 furnished insets consisting of Volumes I, 11, III and IV. Price per set. net, postpaid, $34.00, 

 United States, Mexico, Cuba; $25.00, Canada; $26.00, other countries. Subscriptions are in 

 order for Volume V, 1921. Price, per volume, $5.00, United States, Mexico, Cuba; .$5.25, 

 Canada; $5.50, other countries. 



