32 



MAX LEVIN E 



TABLE 13 



GAS-FORMATION AND OTHER CHARACTERISTICS OF BACILLUS-COLI-LIKE BACTERIA FROM VARIOUS 



ANIMALS AND SEWAGE 



only from sewage. This must not be taken to mean that such organ- 

 isms are entirely absent from the other sources, but it certainly indi- 

 cates that they are extremely scarce in feces of the animals studied. 



Salicin is fermented by 95% of the bovine strains, and by 8 (89%) 

 of the 9 Voges-Proskauer-positive strains from sewage. Organisms 



TABLE 14 

 MOTILITY AND OTHER REACTIONS OF BACILLUS-COLI-LIKE BACTERIA FROM DIFFERENT SOURCES 



from other sources attack salicin less readily horse 73.8%, sheep 

 68.3%, pig 58.1%, man 44%, and sewage (Voges-Proskauer-negative 

 strains) 56.7%. This glucosid was used by MacConkey, 3 who did not 

 regard its employment worth while for classification purposes. 

 Recently (1914) Kligler 6 suggested that salicin displace dulcitol in 



