Pectin and the methylated glucoses tried were not digested with production of acid or gas by those members of the colon-typhoid group commonly found in feces. The organisms attacking pectin and 3-monomethyl glucose with production of acid and gas were those generally associated with the soil. Pectin and the methylated glucoses tried were not digested with production of acid or gas by organisms isolated from activated sludge or creamery wastes. All the members of the colon-typhoid group tested were incapable of digesting 1-, 2-, 3-, 5-tetra-methyl glucose and 1-, 2-, 3-, 5-, 6-pentamethyl glucose. Bad. schotmulleri, Bact. aertrycke, and other closely related forms can not be differentiated on the bases of digestion of pectin and methylated glucoses used. It is suggested that an agar medium containing only 3-monomethyl glucose may be useful for isolation of Bad. cloacae.