GENERAL INDEX 



345 



Lysozyme {cotit.) 



relation to bacteriophage, 213 



solubility, 160, 171 

 Lytic action 



of actinomycetes, 104-109, 120-121 



of antibiotic substances, 212 



Maggots, bactericidal action of, 151 



Malarial parasites, 147 



Malignant tumors, 222 



Manure. See Human and animal 



wastes 

 Mastitis. See Bovine mastitis 

 Measurement of antibiotic activity, 

 methods. See Methods of measur- 

 ing antibiotic activity 

 Mechanical separation method of deter- 

 mining abundance of organisms in 

 soil, 7 

 Mechanism of antibiotic action. See un- 

 der Antibiotic substances 

 Medium, 61-64, 65 



effect of aeration on antibacterial ac- 

 tivity of fungi, I 26 

 staling, 41, 52 

 Meningitis, treatment with penicillin, 



233,234 

 Metabolic processes of cells, interfer- 

 ence by antibiotic substances, 1 96 

 Metabolic products, effect of, 61 

 Methods of determining abundance of 



microorganisms in soil, 6-7 

 Methods of growing organisms for pro- 

 duction of antibiotic substances, 

 64-66 

 Methods of isolating antagonistic mi- 

 croorganisms, 56-60, 78-79 

 bacterial agar plate, 57-58 

 crowded plate, 58 

 direct soil inoculation, 58-59 

 "forced antagonism," 56, 59, 186 

 soil enrichment, 56-57 

 Methods of measuring antibiotic ac- 

 tivity, 66-77 

 agar diffusion or "agar cup," 73-75 

 agar plate-dilution, 69, 71 

 antiluminescent test, 76 

 interference with function, 76 

 lysis of red blood cells, 76 



Methods of measuring antibiotic activity 

 {cont.) 

 serial dilution, 71, 73 

 turbidimetric, 75-76 

 Methods of measuring bactericidal ac- 

 tion, 77-78 

 Methods of testing antagonistic action 



of microorganisms, 60-64 

 Methods of testing in vivo activity of 



antibiotic substances, 78 

 Microbial cell, growth of, 13-14 

 Microbiologist, problems for, 94, 262- 



264 

 Micromonosporin, 114, 158, 171, 263, 



270 

 Microorganisms 



in animal excreta, 20-23, 84 

 in soil, 1-2, 6-10, II, 36-37, 247 

 nutrition of, 12-13, 196 

 See also Actinomycetes; Animals, mi- 

 croscopic; Antagonistic microor- 

 ganisms; Bacteria; Fungi; Mixed 

 cultures 

 Microscopic methods of determining 

 abundance of microorganisms in 

 soil, 7 

 Milk 



bactericidal action, 188 

 inhibition of gramicidin, 218-219 

 pasteurized, 225 

 Milky disease of larvae, 149 

 Mixed culture inoculation for testing 



antagonistic action, 64 

 Mixed cultures 



antagonistic interrelationships, 46-5 i 

 associative interrelationships, 42-45 

 competitive interrelationships, 45-46 

 growth of microbial cells, 13-14, 38, 



81, 215-216 

 mutualistic relationships, 14, 38-41, 



43 

 nature, 41-42 

 Mixed infections, 222, 223 

 Mixed population. See Mixed cultures 

 Mode of action of antibiotic substances. 



See under Antibiotic substances 

 Morphology, 99, 2 1 3-2 1 5 

 Much-lysin, 85 

 Mucin, 219 

 Mushroom fungi, 9 



