EXPERIMENT STATION BULLETINS. 333 



MICRO-ORGANISMS IN SAMPLE III. 



Ilia. 



Morpholog5\ Bacillus. 



Size — average diameter, .8 microns; length, 1.6 microns to 2.4 microns. 



Motility — non-motile. 



Staining — stains readily. 

 Gelatin Colony. 



Round; border smooth and entire, pulvinate. 

 Gelatin Stab. 



Filiform. 

 Agar. 



Glistening, opaque. 

 Bouillon. 



Turbid, with sediment. 

 Potato. 



Black. 

 Milk. 



Digested somewhat (?) See also combination Ilia and IIIx. 

 Fermentation of Sugars (Dextrose, Lactose, Sacchai-ose) . None noted. 

 Proteolysis. 



Gelatin is not liquefied. 

 Biochemical tests. 



No indol, hydrogen sulphide, or ammonia. Nitrates are not reduced. 

 Chromogenesis. 



No pigment. 



Illb. 



Morphology. Bacillus. 



Size — average diameter, 1 micron; length, 1.2 microns to 2 microns. 



Mo till ty — mo tile . 



Staining — stains readily. 

 Gelatin Colony. 



Filamentous and fioccose. 

 Gelatin Stab. 



Filiform. 

 Agar. 



Glistening, opaque, rugose. 

 Bouillon. 



Turbid with sediment. 

 Milk. 



Loppered somewhat. See also chart combination Illb and IIIx. 

 Fermentation of Sugars (Dexti-ose, Lactose, Saccharose). None noted. 

 Proteolysis. 



Gelatin not liquefied. 

 Biochemical tests. 



No indol, hydrogen sulphide, or ammonia. Nitrates not reduced. 

 Chromogenesis. 



No pigment. 



IIIc. 

 Morphology. Bacillus. 



Size — average diameter, .5 microns; length, 1 micron to LO microns. 



Motility — motile. 



Staining — stains readily. 

 Gelatin Colony. 



Round, coarsely granular, undulate. 

 Gelatin Stab. 



Filiform, becoming stratiform. 

 Agar. 



Glistening, opalescent. 

 Bouillon. 



Turbid with sediment and scum. 

 Milk. 



Seems to lopper and digest somewhat. Also see chart comI)ination IIIc and IIIx 

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

 Proteolysis. 



Gelatin liquefied. Casein partly digested. 



