APPENDIX P 



THE DESCRIPTIVE CHART OF THE SOCIETY OF AMERICAN 

 BACTERIOLOGISTS 



The identification of species of bacteria is rendered much more 

 certain if one uses the chart prepared by the above-mentioned 

 society. This chart enumerates practically all characters of bacteria 

 ■which have a differential value when the organisms are grown upon 

 media prepared according to the standard methods of the American 

 Public Health Association as adopted in 1905. 



Copies of this chart, in form suitable for use in the laboratory, 

 are supplied at a nominal price by the Secretary of the Society 

 of American Bacteriologists. 



DESCRIPTIVE CHAET — SOCIETY OP AMERICAN 

 BACTERIOLOGISTS 



Prepared by F. D. Chester, F. P. Gorham, Erwin F. Smith, Committee 



ON Methods of Identification of Bacterial Species. Indorsed by the 



Society for General Use at the Annual Meeting, Dec. 31, 1907 



DETAILED FEATURES 



(Note. Underscore required terms) 



I. Morphology (1) 



1. Vegetative cells, medium used , 



temp , age days. 



Perm, round, short rods, long rods, short chains, long chains, filaments, 



commas, short spirals, long spirals, Clostridium, euneate, clavate, curved. 



Limits of size Size of majority 



Ends, rounded, truncate, concave. 



(Orientation (grouping) 

 Chains (number of elements) 

 Short chains, long chains. 

 Orientation of chains, parallel, irregular. 



2. Sporangia, medium used , 



temp , age days. 



Form, elliptical, short rods, spindled, clavate, drumsticks. 



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