INDEX 



337 



Kircher, early bacteriologist, 2. 



Koch, Robert, 6-7 ; development of 

 culture methods by, 85 ; rules of, to 

 prove connection between a micro- 

 organism and a disease, 245 



Lactic acid bacteria, 172 ; in milk, 311- 

 312; produced by bacteria of the 

 mouth, 325. 



Lactic acid fermentation, 206-208. 



Leeuwenhoek, Anthony Van, 2-4. 



Legume bacteria, 185-186, 285-287. 



Life processes of cells, general charac- 

 ter of, 165-166. 



Light, effect of, on bacteria, 155-159. 



Lime as a disinfectant, 147. 



Locations, relation of bacteria to, 

 282. 



Locomotion of bacteria, 29-35 ; effect 

 of chemicals on, 141-142. 



Loeffler's alkaline methylene blue for 

 staining, 97. 



Loeffler's blood serum, 72. 



Lophotrichous class of flagellate bac- 

 teria, 31. 



Lower bacteria (Haplobacteria), 15-21 ; 

 reproduction among, 42-50. 



Luminosity, power of, in certain bac- 

 teria, 198. 



M 



Mass grouping of bacterial cells, 37- 

 41. 



Membranes, mucous, bacteria of, 310- 

 321, 322. 



Mercuric chloride as an antiseptic, 

 147. 



Merismopedia, 16 



Mesophilic bacteria, 135-136. 



Metabolism of bacteria, 165-170; prod- 

 ucts of, 171-182. 



Metachromatic granules, 55, 57-59. 



Metatrophic bacteria, 167. 



Methane and mucilaginous fermenta- 

 tion, 211. 



Methods used in studying bacteria, 66- 

 tot. 



Microbiology, i. 



Micrococci, 16. 



Micrococcus progrediens, size of, 

 29. 



Microscope, bacteriological, 6; history 

 of the, 93-94- 



Microscopical examination of bacteria, 

 93-iQi. 



Microspira, 19. 



Migula, classification of bacteria by, 

 103-104 ff. 



Milk as food for bacteria, 71 ; bacteria 

 of, 212-214, 305-318. 



Molds, relationship of bacteria to, 121, 

 123-124. 



Monotrichous class of flagellate bac- 

 teria, 31. 



Morphology of bacteria, 14 ff. 



Mouth, bacteria of the, 322-325. 



Movement, of bacteria, 29-35 ; effect 

 of chemicals on, 141-142 ; effect 

 of movement on bacteria, 163. 



Mucilaginous fermentation, 211; in 

 milk, 214. 



Miiller, O. F., 4-5. 



Multiplication of bacterial cells, rate of, 

 43-46. See Reproduction. 



Myxobacteriaceae, relationship of bac- 

 teria to, 124. 



N 



Neutralization of bouillon in prepara- 

 tion as bacterial food, 69. 



Nitrification, process known as, 226- 

 227. 



Nitrifying bacteria, 183-185. 



Nitrogen-fixing bacteria, 185-186, 285- 

 287. 



Nitrogenous substances produced by 

 bacteria, 175-176. 



Nitroso-bacteria, 183-184. 



Nonalbuminous culture media, 75~76. 



Nose, bacteria of the, 322. 



Noxious retention theory of immunity, 

 272. 



Nucleus in bacterial cell, question of, 

 59-60. 



