THE CLASSIFICATION OF BACTERIA l8/ 



182. Bact. laxae 



Ein thermophiler Bacillus aus Zukerfabriksproducten Laxa : Centralblatt f. 

 Bakteriol., 2te. Abt., IV, 1898, 362. 



Morphology. Bacilli in cultures like B. vulgaris. 



Glycerin agar colonies. Deep: With white centres and dense outgrowths. 



Surface : Round, yellowish, crumpled, with root-like outgrowths, becoming 



in 24 hours 20 cm. or more in diameter. 

 Bouillon. With a crumpled membrane. 

 Potato. A tough, yellowish, ragged layer. Growth begins and increases up 



to 58. Grow in acid alkaline or neutral media. Grow best in saccharine 



media, with production of gas and lactic acid. Pepton solutions without 



sugar rendered alkaline. Nitrates reduced to nitrites. 

 Habitat. Associated with Schaumgarung in sugar factories. 



CLASS XIII. WITH ENDOSPORES; AEROBIC AND FACULTA- 

 TIVE ANAEROBIC, RODS NOT SWOLLEN AT SPORULATION. 

 GROW AT ROOM TEMPERATURES. GELATIN LIQUEFIED. 



ANTHRAX GROUP 

 I. Stab cultures in gelatin arborescent. 



A. On the surface of bouillon cultures a membrane is more or less strongly 



developed. 



1 . Potato cultures dense, rough, crumpled, or felt-like, to mealy. 



183. Bact. mycoides (Fliigge). 



184. Bact. brassicce (Pommer). 



185. Bact. granulatum. 



1 86. Bact. maritimum (Russell). 



2. Potato cultures show scattered colonies. 



187. Bact. sputi. 



3. Cultures on solid media not described. 



1 88. Bact. sessile (Klein). 



B. No membrane forms on the surface of bouillon cultures. 



1. Fatally pathogenic to mice, guinea pigs, and rabbits. 



189. Bact. anthracis (Cohn) Migula. 



2. Not pathogenic, or only a local effect, on guinea pigs. 



190. Bact. anthracoides (Kruse). 



191. Bact. crystaloides (Dyar). 



