EXPERIMENT STATION BULLETINS. 323 



Gelatin Coluuy. 



Grumose, ameboiLl. 

 Gelatin Stab. 



Beaded. 

 Agar. 



Dull, opaque. 

 Bouillon. 



Scum with sediment. 

 Potato. 



Abundant growth. 

 Milk. 



Curded after 30 days. See also chart combination lid and IIx. 

 Fermentation of Sugars (Dextrose, Lactose, Saccharose). None noted. 

 Proteolysis. 



No liquefaction of gelatin. No action on casein noted. 

 Biochemical tests. 



Indol, hydrogen sulphide, and ammonia, negative. Nitrates reduced. 

 Chromogenesis. 



No pigment. 



lie. 

 Morphology, liacillus. 



Size — average diameter, .8 microns; length 1 micronc to 1.8 microns 



Motility — no motion 



Staining — stains readily. 

 Gelatin Colony. 



Round, clouded. ~ 



Gelatin Stab. 



Filifonn, becoming stratiform. 

 Agar. 



Glistening, opaque. 

 Bouillon. 



Slight sediment, faint ring at top. Body of liquid clearing. 

 Potato. 



Moist, abundaiit growth. 

 Miilv. 



Curded after nine days. See also chart combination He and IIx. 

 Feiinentation of Sugars (Dextrose, Lactose, Saccharose). None noted. 

 Proteolysis. 



Gelatin liquefied. 

 Biochemical tests. 



Indol, hydrogen sulphide, negative. Nitrates reduced. 

 Chromogenesis. 



Yellow pigment. 



Ilg. 

 Morphology. Bacillus. 



Size — average diameter, .4 microns; length, I micron to 1.0 microns. 



Motility — no motion. 



Staining — stains readily. 

 Gelatin Colony. 



Round, grumose. 

 Gelatin Stab. 



Filiform. 

 Inclined Agar. 



Glistening, opalescent. 

 Bouillon. 



Turbid, slight scum. 

 Potato. 



Moist, abundant growth. 

 Milk. 



See combination Ilg and IIx. 

 Fermentation of Sugars (Dextrose, Lactose, Saccharose). None noted. 

 Proteolysis. 



No liciucfaction of gelatin. Casein unchanged. 

 Biochemical tests. 



Indol, hydrogen sulphide, and ammonia, negative. 



Nitrates, not reduced. 



