the growth and phage production of megatherium 899a have been determined in the presence of the following substances : aureomycin , bacitracin , chloromycetin , gramicidin , merck ab631 , merck ab191 , merck ab624 , penicillin , streptomycin , terramycin , tyrothricin , usnic acid , acetone , chloroform , ethyl alcohol , formaldehyde , gentian violet , glycerin , maleic hydrazide , methyl alcohol , phenyl mercuric acetate , sodium fluoride , sulfanilamide , toluene , and urethane .
C0001962
ethyl
C0001963
methyl