348 



INDEX 



Steam current, 327 

 Sterilisation, 29-31 



— methods of, 30, 31 

 Streptococcus, 9, 297 



— pyogenes, 299 



— Hollandicus, 192 

 Streptothrix, 317 

 Structure of bacteria, S 

 Sulphurous acid as a germicide, 332 

 Suppuration, 296-301 



Swine fever, 320 

 Symbiosis, 162 

 Symptomatic anthrax, 171 



Table of economic bacteria in soil, 



145 



Temperature, influence of, on bac- 

 teria, 23 



Tetanus, 19, 168, 245 



— toxin of, 168 

 Thresh's disinfector, 328 

 Thrush, 203 



Tissues, effect of, on bacteria, 267 

 Tobacco-curing, 136 

 Toxins, 28, 241-247, 272 

 Tuberculin, 281 

 Tuberculosis, 274-292 



— pathology of, 274 



— varieties of, 275 



— history of, 276 



— conveyed by the air, 104 



— and the milk supply, 196-198, 290 



— giant cells in, 275 



— bacillus of, 276 



— cultivation of bacillus of, 277 



— spores of, 277 



— relation of bacillus to disease, 279 



— toxins of, 281 



— of animals, 283 



— prevention of, 286-292 



— disinfection in cases of, 292 



— decline of, 288 



— and overcrowding, 288 



— channels of infection in, 289 



— expectoration in, 290 



Tuberculosis and house influence, 291 



— and glanders, 319 

 Typhoid fever, 56 



— bacillus of, 55-58 



— micro-pathology, 57 



— bacillus compared with B. coli, 58 



— bacillus in sewage, 59 



— bacillus in drinking water, 60 



— tests for bacillus of, 61-64 



— and soil. 173, 176 



— conveyed by the air, 105 



— and milk supply, 199 

 Tyrotoxicon, 205, 237 



Unit of antitoxin, 263 

 Urea, 148 



Vaccination, 251-253 

 Vaccines, plague, 257, 259 



— cholera, 257 



— small-pox, 251 

 Vaccinia, 251 

 Variolation, 250, 251 

 Virulence increased, 32 



— diminished, 36 



Water, bacteria in, 37-84 



— number of bacteria in, 38 



— examination of, 39-52 



— disease organisms found in, 55 



— natural purification of, 69 



— artificial purification of,- 73 



— filtration of, 74 



— domestic purification of, 79 



— pollution of, 82 



Wheat supply and bacteria, 161 

 Widal reaction, 63, 340 

 Wooden tongue, 318 

 Wool-sorters' disease, 305 



Yeasts, 116 

 Yellow fever, 316 



Ziehl-Neelsen stain, 44, 340 



