INDEX 



323 



Treponema pertenue, 262 

 Trichobacteria, 4, 5, 266 

 Trichophyta, 273 

 Tropical ulcer, 288 

 Trypanosoma, 278 

 Trypanosome brucei, 285 



equiperdum, 285 



evansi, 285 



gambiense, 285 



lewisi, 284 '} 



rhodesiense, 286 

 Trypanosomes, 283 

 Trypanosomiasis, 283, 285 

 Tsetse fly disease, 285 

 Tubercle bacilli in milk, 88, 89 

 Tubercle bacillus, 188 



avian, 197 



bovine, 197 



cultivation of, 189 



fish, 197 



heredity, 193 



human, 197 



immunity to, 194 



modes of infection by, 191 



morphology of, 188 



pathogenesis of, 190 



resistance of, 190 



staining of, 188 



tuberculin in, 195, and see Tuberculin 



varieties of, 197 

 Tuberculin, as a diagnostic agent, 195 



cutaneous test of von Pirquet, 196 



dose of, 195 



intracutaneous test of Mantoux, 196 



ophthalmic test of Calmette, 196 



percutaneous test of Moro, 196 



preparations of, 195 



reaction, 195 



Tuberculosis transmitted by milk, 88, 89 

 Typhoid bacillus, 208, and see Bacillus 

 typhosus 



in milk, 90 



in soil, 70 



in water, 79 

 Typhoid carriers, 212 

 Typhus fever, 251 



Ulceromembranous angina, 250 

 Ultramicroscopic organisms, 4, 300 



viruses, 3, 300 



Ultraviolet rays in purification of water, 82 

 Unit, of antitoxin, 118, 121 



of toxin, 117 

 Urine, bacteriological examination of, 107 



Vaccination against smallpox, 308 

 preparation of virus for, 310 



Vaccine bodies, 309 



Vaccines, autogenous, 148 

 immunization by, 147 



Vaccines Continued 



polyvalent, 148 



sensitized, 148 



Vaccinia, relation of, to variola, 309 

 Van Ermengen's method of staining 



flagella, 48 

 Variola, 307 



relation to vaccinia, 309 

 Vibrios, 6 



El Tor, 258 

 Vincent's angina, 250 

 Vinegar making, 72 

 Virulence of bacteria, 98 

 Viruses, filtrable, 3, 300 



ultramicroscopic, 3, 300 

 Von Pirquet's cutaneous test, 196 



Washing soda as disinfectant, 20 

 Wassermann reaction, 141, 142, 262 



in gonorrhea, 141 



in syphilis, 262 



Water, bacteriological examination of, 

 74, 76 



cholera spirillum in, 79 



collecting samples for analysis, 77 



colon bacilli in, significance of, 75 

 tests for, 77, 78 



filtration of, 80 



natural, 74 



purification of, 79, 80, 81 



quantitative analysis of, 77 



relative purity of, 75 



sewage streptococci in, 78 



significance of colon bacilli in, 75 



storage of, 80 



typhoid bacilli in, 79 

 Weil's disease, 263 

 Welsh's gas bacillus, in soil, 70 

 West African tick fever, 264 

 Whooping cough, 234, and see Bacillus 



pertussis 

 Widal's test, 136 

 Wolffhugel's counting plate, 56 

 Wool sorters' disease, 224 

 Wounds, bacteriological examination of 



material from, 105 



Wright's pipette and tube for opsonic 

 index, 134 



stain, 48 

 Yaws, 262 

 Yeast cells, 275 

 Yeasts, 4, 266, 275, 276 



pathogenic, 276 

 Yellow fever, 302 



Ziehl-Neelsen's carbol fuchsin stain, 46 

 Zooglcea, 8 

 Zootoxins, 115 

 Zygote, 293 

 Zymophore, 127 



Printed in the United States of America. 



