Si? 



Designation 



I. Bacterium Bischleri 



II. Streptococcus lique- 

 faciens ilei vel acidi 

 lactici 



III. Bacterium ilei (Frey) 



IV. 



Bacillus liquefaciens 

 ilei 



Distinguishing Morphological C 



Pathogenic? 

 Special Remarks 



Short rods varying in length. On an Pathogenic. When subcutane- 

 3 /i broad. Usually coupled. Do noW injected killed guinea-pigs 

 movement. Formation of spores not ^ days 

 B. coli com. ^ ne products of fermentation 



ich it induces are the same 

 those of B. coli com., save 

 t the latter generates dextro- 

 ous lactic acid (sarcolactic 



B 



Small thin cocci, arranged in 

 Keadily stained by usual anilin colour 

 they form small, round, yellow coloir 

 narrow zone of liquefied gelatin. In 

 after 24 hours, a turbidity occurs. Afte 

 streptococci 



Injections of 

 cultures caused death 

 hours 



Short rods with rounded ends, 2 3 ^ 

 often coupled. Mobility slight. For 

 extremities. Easily coloured by meth 

 solution. Cultivated on gelatin, they s 

 and have a grey colour. Grow rapidly 



Fine, thin rods, 2'0 2'3/i long and 

 spores, grow rapidly and are mobile. C< 

 On gelatin plates at ordinary temperat 

 defined colonies which liquefy gelati 

 'bouillon.' After 24 hours, liquid is tr 

 a thin bacterial scum on the surface, 

 putrefaction 



data 



data 



V. Bacterium ovale ilei 



Almost circular and short (coccus-lf data 

 on gelatin plates, round or oval colonie 

 Grow rapidly in ' bouillon, ' without pul 



VI. Bacillus gracilis ilei 



Fine, thin rods, about 5 times as' data 

 mobile, usually coupled. Formation oj 

 On gelatin plates, whitish -yellow, rourj 

 borders. Grow well in 'bouillon' at 38 



VII. Bacterium lactis aero- 

 genes (Escherich)? 



Short rods with rounded ends. SijPathogenic. Kills guinea-pigs 

 often aggregated in masses. On gelati] 2 4 days 

 which, on the surface, appear white and 

 layers, yellowish-white, round, point! 

 'bouillon.' 



Macfadyen, Nencki u. Sieber, 'Untersuc 



To face p. 437. 



350. 



