GENERAL INDEX 



409 



Inhibition 



of antibacterial action, 255-257 



of antibiotic action, 255-257, 259 

 Inhibitive substance, defined, 332 

 Inhibitor, defined, 331-332 

 Inner antagonism, 226 

 Inorganic constituents of soil, 4-5 

 Insects 



activity of fungi against, 1 59-161 



bactericidal action of, 161 



control of, 15 9-1 61 



in soil, 6, 9, 17 

 Interference phenomenon, 167 

 Intestinal disturbances, treatment of, 



265, 298 

 In vivo activities of antibiotic substances, 



methods of testing, 83-84 

 lodinin, 173, 181-182, 320, 329 



chemical nature, 173, 177 



structural formula, 182 

 Iron utilization, 224 

 Iso-antagonism, 47, 250 

 Isolation of antagonistic microorgan- 

 isms, methods. See Methods of iso- 

 lating antagonistic microorganisms 



Japanese beetle, control of, 160, 324 

 Javanicin, 145, 173, 329 



Ketones, 241 



Kojic acid, 173, 182, 213, 329 



Lactenin, 1 70, 330 



Lactic acid bacteria, 107, 265 



Lactose fermenting bacteria, 1 01 



Lauryl sulfate, 82 



Leeches, 94 



Leguminous plants, 3 I 3 



Leprosy, 17, 28 



Lichens, 217 



Lipoids, 103, 104, 287 



Liquid media for testing antagonistic 



action, 60— 61 

 Litmocidin, 1 19, 126, 173, 329 

 Lysin of bacteria, 90, 226 



of actinomycetes, 127 



of bacteria, 56, 57, 83, 87, 



105, 127, 251-252 

 of fungi, 152 



Lysobacteria, 89 

 Lysogcnesis, defined, 332 

 Lysogcnic bacteria, 57-58 

 Lysozymc, 161, 170, 215-216, 245, 

 250, 3I4> 330 



defined, 332 



effect on bacteria, 2 1 5-2 1 6 



of actinomycetes, 116 

 Lytic action 



of actinomycetes, 110-114, 126- 



127 

 of antibiotic substances, 93, 98, 105, 

 225, 249 



Maggots, bactericidal action of, 162 



Malarial parasites, 158-159 



Maltol, 199 



Manure. See Human and animal wastes 



Manuring of soils, 308 



Mastitis. See Bovine mastitis 



Measurement of antibiotic activity, 

 methods. See Methods of measur- 

 ing antibiotic activity 



Mechanical separation method of de- 

 termining abundance of organisms 

 in soil, 7 



Mechanism of antibiotic action. See 

 mider Antibiotic substances 



Medium, 60-63, 64-69 



effect of aeration on antibacterial ac- 

 tivity of fungi, 137, 138-139 

 staling, 47 



Meningitis, treatment of, 275, 278, 

 295, 296 



Metablosis, 13 



Metabolic processes of cells, interfer- 

 ence by antibiotic substances, 252— 



255 

 Metabolic products, effect of, 60 

 Metabolite antagonism, 227 

 Methods of determining abundance of 



microorganisms In soil, 6—9 

 Methods of growing organisms for pro- 

 duction of antibiotic substances, 

 64-69 

 Methods of isolating antagonistic micro- 

 organisms, 53-59' 319 

 bacterial agar plate, 55-56 

 crowded plate, 56 

 direct soil inoculation, 57—58 



