INDEX. 



279 



Page. 



Meat-extracts, bacteria in 260 



Media for cultures, 



agar 31, 195 



animal fluids 45 



gelatin 29, 196 



milk 46, 196 



non-synthetic 195 



plant juices 41 



silicate-jelly 41 



special 49 



starch-jelly 5. T 96 



sterilization of 85 



synthetic 49, 197 



vegetable media, solid 39 



Media free from spores, easy sterilization of. 40,85 



Mercaptan 62, 243 



Mercuric chloride 74 



for sterilizing plants before inoculation. 108, 109 

 for sterilizing surface of diseased material. 14 



germicidal action of 232 



in hot alcohol, as a fixing fluid 8 



preservation of cultures by use of 263 



Messea, classification of 20, 264 



Mctcalf, bacillus softening agar 32 



Meters, for photographic exposures 143 



Methane-cellulose ferment 106 



Methods of work, 



checking 184 



literature on 226 



Methylene blue, 



as a test for free oxygen 57, 232 



Loeffler's alkaline 188 



reduction of, by bacteria 62, 239 



Methyl violet, as a germicide 74 



Meyer, effect of liquid air on bacteria 247 



Michaelis, thermophilic bacteria 248 



Micrococcus 160 



Micrococcus progrediens, small size of 18 



Micrometers, stage 115 



Micro-organisms, cell-life without 211 



Microscope, 



achromatic objectives for 140, 265 



apochromatic objectives for 130 



for recording exact location of desirable 



fields 129 



Leitz 129 



oculars 130 



Spencer 129 



Zeiss, for bacteriological investigations 129 



Zeiss, for photomicrographic work 129 



Microspira 161, 172 



Microtome, kind preferred 122 



Microtome-knives 122 



Microtome-sections, 



cutting and care of 119 



mounting of 119 



staining of 119, 120 



Microzymas of Bechamp 176 



Migula, classification of 159 



Milk, 



a good culture-medium 47 



anaerobes in 46 



Page. 

 Milk continued. 



clearing of 46, 267 



coagulation of, by bacteria 67 



enormous numbers of bacteria in 196 



litmus 196 



observations to be made on cultures in 46 



preparation of, for culture-medium 46 



reddened by bacteria 259 



resistant spores in 46 



ropiness in 259, 260 



sterilization of 46, 98 



temperature governs bacterial multiplica- 

 tion in 260 



Minervini, bactericidal action of alcohol 252 



Minimum temperature, 



for growth, how determined 76 



range of 87 



Miquel, 



bacteria in sea-air 255 



thermophilic bacteria 247, 248 



Mixed cultures, behavior of 72 



Moller's spore-stain 218 



Molisch, on luminous bacteria 60 



Monas 173 



Moore, A., capsule-stain 221 



Moore, G. T., 



copper sulphate as a germicide 74 



culture-medium for root-tubercle bacilli. ... 197 



root-tubercle bacteria 241 



soil-inoculation for legumes 64 



Moore, V. A., 



flagella-stain 190 



Moore & Kellerman, action of copper on B. 



typhosus in water 97 



Morphological characters, 



change in, due to changed environment 222 



value of 176 



Morphology 19 



extreme views concerning 176 



general account of 18 



generic characters should be based on 156 



insufficient for differentiation of many spe- 

 cies 25 



literature on 215 



modern views concerning 177 



Morton, flagella-stain 220 



Motility of bacteria 26 



Motor-reflex in bacteria 254 



Mueller, bacterial reduction processes 239 



Miiller, genus Vibrio 172 



Muir, capsule-stain 194 



Murrill, gas-pressure regulator 78 



Museums, preservation of cultures for. . . 262, 263 



Mustard, natural infection in 92 



Mycobacterium 172 



Myconostoc 161 



Myxobacter 165 



Myxobacteriaceae, characters of 164 



Myxococcus 165 



Naegeli's nutrient solution 197 



Nakanishi, nucleus, existence of, in bacteria. . 217 



Nectaries, natural infection through 92 



Needle-punctures, inoculation by 108 



