JOURNAL OF BACTERIOLOGY 



OFFICIAL ORGAN OF THE SOCIETY OF AMERICAN BACTERIOLOGISTS 



DEVOTED TO THE ADVANCEMENT AND DIS- 

 SEMINATION OF KNOWLELGE IN REGARD TO 

 THE BACTERIA AND OTHER MICRO-ORGANISMS 



Editorial Board 



Editor-in-ChieJ 

 C.-E. A. WINSLOW 



Yale Medical Scliool, Now Haven, Conn. 



A. Parker Hitchens 



R. E. Buchanan, Ex oflicio 



C. C. Bass 

 R. E. Buchanan 

 P. F. Clark 

 F. P. Gay 



F. P. GORHAM 



F. C. Harrison 



Advisory Editors 



H.. W. Hill 

 E. O. Joroan 

 A. I. Kendall 

 C. B. Lipman 

 C. E. Marshall 



V. A. Moore 

 M. E. Pennington 

 E. B. Phelps 

 L. F. Rettger 

 L. A. Rogers 



M. J. ROSENAD 



W. T. Sedgavick 

 F. L. Stevens 

 A. W. Williams 

 H. Zinsser 



CONTENTS 



Leo F. Rettger. The Science of B.^cteriology and it.s Relation to Other Sciences.. . . 103 



H. J. Conn, Chairman, H. A. Harding, I. J. Kligler, W. D. Frost, M J. Prucha, 

 and K. N. Atkins. Methods of Pure Culture Study. Preliminary Report of 

 the Committee on the Chart for Indentification af Bacterial Species 115 



H. S. CoRPKR and H. C. Sweany. The Enzymes of the Tubercle Bacillus 129 



J. M. Sherman and W. R. Albus. Some Characters Which Differentiate the Lactic- 

 Acid Streptococcus from Streptococci of the Pyogenes Type Occurring in Milk.. 153 



R. E. Buchanan. Studies in the Nomenclature and Classification of the Bacteria. 



V. Subdivisions .and Genera of the SpiriDaceae, and Nitrobacteriaceae 175 



Charlotts Vincent. The Direct or Breed Method for Counting Bacteria in Tomato 



Catsup, Pulp or Paste ^^"^ 



Jean Broadhurst. Blue-printing Directly from Agar Plates l'^'' 



Helen R. Odell. Comparison of Loeffler's Coagulated Blood Serum and Blood Serum 



With the Addition of Sterile Ox Gall 189 



Abstracts of American and foreign bacteriological literature appears in a separate 

 journal, Abstracts of Bacferiolngy, published l)i-monthly by the Williams & Wilkins Com- 

 pany, under the editorial direction of the Society of American Bacteriologists. Price, $5.00 

 North America; $5.50 elsewhere. 



