THE CLASSIFICATION OF BACTERIA 301 



Glucose gelatin stab. A fir tree growth, and a broad liquefied funnel above, or 

 a cylindrical liquefaction along line of stab, with filamentous outgrowths 

 and gas. 



Milk. Thick, slimy, cheesy odor, becoming peptonized. 



260. B. saccharobutyricus v. Klecki 



Centralblatt f. Bakteriol., II, 1896, 169. 



Morphology. Bacilli 0.7 : 5-7 /i, straight — slightly bent, often filaments 15 

 microns long; chains of not more than 2-4 elements. Spores placed 

 at the ends of the rods. Not stained by Gram's method. Rods contain 

 granules which stain violet with iodine. 



Lactose gelatin colonies. Oval, sharp, granular in the interior. Ferments 

 milk-sugar, with much gas. 



Milk. Production of formic, acetic, and butyric acids. No indol or phenol 

 in milk. 



Habitat. IVIilk. 



261. B. polypiformis Liborius. 



Zeitsch. f. Hygiene, I, 1886, 162. 



B. Anaerobic No. II Sanfelice : Zeitsch. f. Hygiene, XIV, 1893, 369. 



Morphology. Bacilli over i.o ;«, thick, of variable length ; slightly motile. 



Gelatin colonies. Irregular — ameboid, cochleate — multilobular. 



Agar colonies. Small, white, irregular, contoured ; microscopically, brown, 



moruloid. 

 Gelatin stab. Growth arborescent. 

 Habitat. Isolated from putrefying flesh and earth. 



262. B. Sanfelicei 



B. solidus Sanfelice : Zeitsch. f. Hygiene, XIV, 1893, 372. 



Morphology. Bacilli large. 



Gelatin colonies. Small, white points ; microscopically, like Proteus mirabilis 



— a more or less rounded colony composed of smaller colonies. 

 Agar colonies. Round, granular, entire, with a central nucleus and a bright 



border. 

 Gelatin stab. In depth, growth beaded. 

 Milk. Coagulated. 

 Habitat. Isolated from earth, fasces. 



