37 



THE OEGANISM IS A BACILLUS. 



THE GELATINE IS LIQUEFIED. 



THE OBGANISM IS NON-MOTILE AND NON- 

 GHBOMOGENIC. 



THE COLONIES ABE CIBCUMSCEIBED. 



Bacillus ulna (Vignal), from sputum ; straight bacilli with rounded 

 ends, in pairs, Uquefying the gelatine in zones, forming a white 

 film on the surface and white floccuh at the bottom of the 

 Uquid gelatine ; liquefies blood serum ; cultures have an odour 

 of putrefaction. 



Bacillus gingivae pyogenes (MiUer), from an alveolar abscess ; thick 

 rods with rounded ends, singly or in pairs ; forms a greenish 

 layer on agar. 



Bacillus buccalis fortuitus (BaeiUus J of Vignal), from healthy 

 salivary secretion ; bacilli ,with square ends, 1 to 3 ,« long ; forms 

 a considerable whitish deposit in the liquefied gelatine, with 

 suspended white floccuU. 



Bacillus filiformis (TUs), from water ; baoiUi 4 /« long, in ohaina ; 

 colonies have a dentate margin. 



Bacillus glaucus (Maschek), from water; slender bacilli, varying in 

 length ; gray colonies with sharply-defined outlines. 



