CLASSIFICATION OF THE COLON-CLOACAE GROUP 



269 



glycerol than has dulcitol. Indol has a slightly higher coefficient 

 with dulcitol than motility, but the number of dulcitol positive 

 strains is so small, that the coefficients observed cannot be relied 

 upon. Indol and motihty seem to be correlated (coefficient 



TABLE 6 



Showing correlation of characters among 38 sucrose negative, salicin negative strains 

 of the coll group. {B. acidi-lactici) 



TABLE 6a 

 Coefficients of correlation for each pair of characters in table 6 



0.68), and their coefficients with glycerol are identical (0.40). 

 In a preliminary report subdivision was made upon motility into 

 the motile species B. Gruenthal, and non-motile B. acidi-lactici. 

 It seems best, until more extensive collections are studied, that 



