THE CLASSIFICATION OF BACTERIA 265 



Agar slant. Growth thin, white. 



Potato. Growth brown. 



Pathogenesis . Intravenous inoculations of rabbits cause death in 2-3 weeks ; 



pneumonia, pleuritis, pericarditis. 

 Habitat. Isolated from a hog with bronchopneumonia and enteritis. 



;LASS xiv. WITHOUT ENDOSPORES. OBLIGATE ANAEROBIC. GEL- 

 ATIN NOT LIQUEFIED. 



[. Grow at room temperatures and in nutrient gelatin. 

 1 6 1. B. tumidus 



B. I Sanfelicc : Zeitsch. f. Hygiene, XIV, 1893. 



^Morphology. Bacilli of variable length, with bladdery swellings. Motility 



slight. 

 elatin colonies. Round, glistening, finely granular ; edges floccose, or with 



B. Zopfi-\\Vit outgrowths. 



4gar slant. Growth thick, floccose tomentous. 

 Gelatin stab. In death, growth beaded, with gas production. 

 habitat. Isolated from putrefying flesh. 



[. No growth at room temperatures or in nutrient gelatin. 

 162. B. thermophilus 



?i neuer anaerober Bacillus des malignen Oedems Novy: Zeitsch. f. Hygiene, XVII, 



1894, 209. 

 3. cedematis-thermophilus Kruse : Fliigge, Die Mikroorganismen, 1896, 242. 



id 



Morphology. Bacilli 0.8-0.9 : 2.5-5.0. Numerous lateral flagella. Stained 

 by Gram's method. 



Gelatin colonies. Floccose. 



"-lucose bouillon. Gas, without odor, or that of butyric acid. Reduces litmus. 

 No growth below 24. 



*athogenesis . Very virulent for mice, rats, guinea pigs, rabbits, cats, and 

 pigeons by subcutaneous inoculation of 0.1-0.25 cc. There is an oedema, 

 with much gas ; abdominal muscles red with hemorrhagic flecks'; pleural 

 and abdominal cavities contain a colorless exudate. 



habitat. Isolated from a guinea pig which was inoculated with a contami- 

 nated nuclei n culture. 



