None
postulates, 281 493 Koch on filtration of water, 66 on inter-communicability of tuber- culosis, 339 et seq. comma bacillus, 385 bacillus of tubercle, 327, 337 views on tuberculosis, 338-346 Koumiss, 198 Lacric acid fermentation, 104, 196 Leguminosee, fixation of nitrogen by, 131 Leprosy, 396-400 history of, 396 forms of, 397 bacillus of, 398 Light, influence upon bacteria, 18-22 Lingner’s apparatus for disinfection, 443 Liquefaction of gelatine, 457 Liquid hydrogen and bacteria, 18 Lloyd on Cheddar cheese-making, 249 Low yeasts, 101 Lymph, glycerinated calf, 416 Lyon’s, Washington, disinfector, 437 Maceration industries, 113 Malaria, 371-384 kinds of, 373, 375 cycle of Golgi, 380 parasites in, 372 microgametocytes of, 375 macrogametocytes of, 376 and mosquitoes, 376 anopheles of, 377 culex and, 378 examination of blood, 485 preventive measures, 382-384 mosquito breeding, 382 destruction of mosquitoes, 383 bites of mosquitoes, 383 quinine, 384 Malignant cedema, 144 bacillus of, 144 Mallein, 324 Malta fever, 402 Manchester sewage treatment, 170-174 Manson on malaria, 375 et seq. on plague, 390 Martin on soil and disease, 147 on tuberculosis, 341-342 Mastitis, 184 M‘Conkey’s bile-salt method, 467, 484 Meat and bacterial infection, 267-272 examination of, 485 poisoning bacteria, 269 tuberculous, 270 decomposed, 270 Media, culture, 16 494 Merismopedia, 8 Metabiosis, 29 Metachromatic granules, 10 Metchnikoff on phagocytosis, 414 Methods of examination, 453 Micrococcus, definition of, 6 aquatilis, Freudenreichii, 199 gonorrhwe, 314 tetragonus, 313 viscosus, 199 Milk, bacteriology of, 178-251 composition of, 195 incubation period for bacteria in, 179 sources of pollution, 181-184 number of bacteria in, 184-194 influence of time and temperature upon bacteria in, 185-194 fermentation bacteria in, 196-202 kinds of bacteria in, 194 disease-producing power of, 202 lactic acid fermentation of, 196 butyric fermentation of, 197 coagulation fermentation of, 197 alcoholic fermentation of, 198 anomalous fermeniation of, 199 and tuberculosis, 203-207 and typhoid, 207-211 and cholera, 223 and epidemic diarrhoea, 223-226 and diphtheria, 211-214 and scarlet fever, 214-217 and sore-throat illnesses, 219-223 and thrush, 218 character of milk-borne disease, 218 prevention of milk-borne disease, 226 method of protection, 227 control of milk supply, 227-240 filtration of, 230 refrigeration of, 228 straining of, 228 sterilisation of, 231 of Liverpool, 205 pasteurisation of, 231 results of, 235 summary of control, 236 products, bacteria in, 240-251 examination of, 473-481 specialised milks, 237 and economic bacteria, 240-249 and municipal depéts, 237 chromogenic fermentation of, 200 Miquel’s method of air examination, 74 Modes of bacterial action, 25 : Mohler on tuberculosis of the udder, 203 Moist chamber, 464 Moisture necessary for bacteria, 18 INDEX Morphology of bacteria, 6 Motility, 11 Mosquitoes and malaria, 376 Mycoderma, aceti, 103 Mycoprotein, 9 Nasa. passages, bacteria in, 80 Natural purification of water, 60-64 Needles, platinum, 17 New soil science, 138 Newsholme on conditions favourable to diphtheria, 291 on causation of epidemic diarrhoea, 309. on disinfection after phthisis, 447 Nitric organism, 128 Nitrification, 125-131 chemistry of, 125 stages in, 129 bacteria of, 129 Nitrifying organisms, cultivation of, 127, 128 Nitrogen, fixation of, 131-139 Nitrogen-fixing bacteria, 131 Nitrous organism, 126 Niven on disinfection after phthisis, 447 Nodules on roots, bacteria in, 133 Ocean bacteria, 36 Oidium albicans, 218 Oxygen necessary for bacteria, 23 Oysters and typhoid fever, 253-263 poisoning, symptoms of, 256 infection, 257 and disease, prevention of, 262 examination of, 484 Paxes’ formate broth method, 467 Paraform for disinfection, 443 Parasitism, 25 Parietti’s method, 466 Pasteur on fermentation, 93 Pasteur’s treatment of rabies, 419 Pasteur filter, 71 Pasteurisation of milk, 231-236 Pathogenic bacteria, in soil, 140 in water, 53 Perlsucht, 333 Petri dishes, 453 Phagocytosis, 413-414 Phosphorescence, 22 Pigment, formation of, 406 Place of bacteria in nature, 4 INDEX Plague, 388-396 varieties of, 388 symptoms of, 388 and rats, 390 distribution of, 389 bacillus of, 392 administrative control of, 394 vaccination for, 424 diagnosis of, 396 Plant diseases, 32 Plasmolysis, 9 Plate cultures, 453 Platinum needles, 17 Pleomorphism, 9 Pneumonia, 319 bacteria of, 320 Pneumo-bacillus, 320 Pneumococcus, 320 Polymorphism, 9 Postulates, Koch’s, 281 Potato medium, 16 Pouchet’s aéroscope, 74 Power on milk-borne scarlet fever, 214 Products of bacteria, 406 Proteolytic ferments, 95 Proteus family, 154, 45 cloacinus, 154 vulgaris, 154 Zenkeri, 154 mirabilis, 154 Pseudo-diphtheria bacillus, 295 Pseudo-tuberculosis, 355-358 Purification of water, 60-72 natural, 60-64 domestic, 70 artificial, 64-70 Pus, 311 Pyocyanin, 313 Pyoxanthose, 313 QuantiraTivE standard of water bacteria, 42 air bacteria, 77 milk bacteria, 191 soil bacteria, 116 Quarter-evil, 142 clinical characters, 143 Rantes, treatment of, 419 forms of, 420 pathology of, 420 results of treatment, 423 Red milk, 200 Reproduction of bacteria, modes of, 11 Rettinz, 113 495 Rivers, natural purification of, 38, 60-64 Robertson on soil and typhoid, 147 Ross on malaria, 380 Rotch’s specialised milk, 239 Russel on butter-making, 244 on cheese-making, 247 SaccHanomycetss, biology of, 97 methods of examination, 99 anomalous, 99 apiculatus, 102 aquifolit, 102 cerevisie, 101 conglomeratus, 102 ellipsoideus I., 101, 102 ellipsoideus IT,, 102 exiguus, 102 Hansenti, 102 illicis, 102 Ludwigii, 99 mycoderma, 102 pastorianus I., 102 pastorianus 11., 102 pastorianus, 111. toxins, 333 Washington Lyon disinfector, 437 ws nee blue ee 350 1g, Bet Wate, bacteria, classification of, 44 id- ed animals, acteria in, 33, 44 of animals, 349-351 collection of samples, 33 o piss gm number of bacteria in, 34, 36, 42, Sy 56 of sheep, 349 examination of, 468-478 ; prevention of, 352-357 organisms of contamination, 56 disinfection in cases of, 447 pathogenic organisms in, 53, 56 pee of, ae — meee ets of beget in, 34 and overcrowding natural purification of, 60-64 channels of infection in, 331 river, Rastavie in, 36-42 evita ae er eta cma al . coli in, 46- pseudo-, 355-358 : filtration ‘of, 65 Typhoid fever, 298-304 ordinary bacteria in, 45 bacillus of, 301 domestic purification of, 70 effect of light on bacillus, 20 ete toa ar 0k gor ’ pathology, 298 quantitative standard in, bacillus compared with B. coli, 48 quality of, 44-60 bacillus in sewage, 175 : sewage bacteria in, 45 bacillus in drinking-water, 303 pollution of, 54-60 tests for bacillus of, 48, 468, 482, 484 sea, bacteria in, 36 and soil, 145 : Watercress, bacteria of, 279 oa by ue an a Wheat supply and bacteria, 131 an oe supply, 207-2 Widal reaction, 482 Tyrotoxicon, 251 Wolfhiigel’s counter, 465 ie Upper tuberculosis, 203, 334 Wool-sorters’ disease, 318 Unit of antitoxin, 428 Yeasts, 14, 97-102 Urea, 120 Yellow fever, 400-402 bacteria in, 400 beer air oo and mosquitoes, 402 ettect OF, Yellow milk, 201 Vaccines, 415-425 :. plague, 424 ZiEHL-NEELSEN stain, 459. 