348 



INDEX 



Steam current, 327 

 Sterilisation, 29-31 



methods of, 30, 31 

 Streptococcus, g, 297 



pyogenes, 299 



Hollandicus, 192 

 Streptothrix, 317 

 Structure of bacteria, 8 

 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 



