43 



THE OEGANISM IS A BACILLUS. 



THE GELATINE IS NOT LIQUEFIED. 



THE OEGANISM IS NON-CHBOMOGENIC. 



THE COLONIES APPEAR AS THIN FILMS OR 

 FLAT DEPOSITS WITHOUT ANY ODOUR. 



Bacillus of Eoubasoff, from the stomach in cases of cancer ; baciUi 

 with roimded ends or with one end pointed ; about three times 

 the size of Bacillus tuberculosis, spore formation in the centre of 

 the rods. 



Bacillus putrificus coli, from human fseces ; slender baciUi, 3 /i long ; 

 actively motUe, having a spore at one end, giving them a drum- 

 stick appearance. 



Bacillus tenuis sputigenus (Pansini), from sputum ; short capsuled 

 bacOIi, usually in pairs ; stains by Gram. 



Bacillus acidi lactici (Hueppe), from sourmUk ; bacilli 1 to 2 /i long, 

 often in pairs or short chains; forms spherical spores at the 

 ends of the rods. 



Bacillus coli communis, from faeces, air, blood, etc. ; very common ; 

 short rods with rounded ends, 2 to 3 /* long ; sometimes con- 

 stricted in the centre resembling a diplocoocus, in pairs or short 

 chains ; stains irregularly, especially in old cultures. 



Bacillus cavicida (Brieger), from human faeces ; believed to be iden- 

 tical with Bacillus coli ; on gelatine plates the colonies form 

 whitish concentric rings supposed to be characteristic. 



Bacillus diphtlierise columbarum (Loffler), from pigeons dying 

 from a species of diphtheria ; short bacUli with round ends, in 

 irregular masses ; resembles the bacillus of fowl cholera. 



Bacillus of rabbit diphtheria (Ribbert), from rabbits dying from a 

 diphtheritic inflammation of the intestinal mucous membrane ; 

 bacilli vidth rounded ends, 8 to 4 /i long, in pairs or filaments ; 

 does not stain by Gram, 



