THE CLASSIFICATION. OF BACTERIA 191 



Bouillon. Clear, with a heavy, flocculent growth. 



Milk. Coagulated, peptonized, slightly alkaline. 



Potato. Growth grayish white, elevated, dense. Spore germination polar. 

 Indol negative. H 2 S, negative or slight. 



Pathogenesis. Mice inoculated subcutaneously die in 24 hours, of general 

 septicaemia. Guinea pigs and rabbits die in 48 hours ; spleen greatly en- 

 larged, bacilli in blood and organs. 



Habitat. Blood, etc., of anthrax subjects. 



190. Bact. anthracoides (Kruse) 



Described but not named Hueppe-Wood : Berliner klin. Wochenschrift, 1889, No. 16. 

 B. anthracoieUs Kruse: Die Mikroorganismen, 1896, 232. 



Morphology and cultural characters like anthrax. 



Pathogenesis. Subcutaneous inoculation of large doses into guinea pigs give 



only a local reaction. 

 Habitat. Earth and water. 



191. Bact. crystaloides (Dyar) 



B. crystaloides Dyar : I.e., 371. 



Morphology and cultural characters like the preceding. 

 Habitat. Isolated from a contaminated plate. 



192. Bact. aerophilum (Flugge) 



z B. aerophilus Flugge : Die Mikroorganismen, 1886. 



Morphology. Bacilli slender, rods of variable length. 



Gelatin colonies. In 40 hours, small, punctiform, oval to pyriform ; no great 



increase of size. 

 Gelatin stab. Liquefaction broadly saccate. 



Potato. Growth dull yellow, smooth, paraffin-like, becoming dry to granular. 

 Habitat. Air and water. 



193. Bact. Trichomii (Trevisan) 



Bacillo delta gangrena senile Trichomi : Riv. internaz. di Med. e. Chir., Ill, 1886, 73. 



B. Trichomii Trevisan : Genera, 1889, 13. 



Bacillus of Trichomi Sternberg : Manual, 1892, 473. 



Morphology. Bacilli 1.0-3.0 p; solitary pairs; rods often show a club- 

 shaped thickening. Stained by Gram's method. Grow at 37 . 



Gelatin colonies. In 24 hours, round, slightly dirty yellow ; liquefaction begins 

 in 36 to 48 hours. 



Gelatin stab. Liquefaction funnel-formed in 48 hours, with gas bubbles. 



