Toxin, diphtheria, 264 effect of temperature, 262 final test for, 127 in food poisoning, 104 molecule, 261, 262 standard, 264 tetanus, 264 Toxin-antitoxin method, 254 Toxins and enzymes compared, 127 as cell constituents, 84 production of, 126-128 of other organisms, 127 specific localization, 249 true, 128 Toxoid, 262 Toxophore group, 261, 262, 273 Tract, alimentary, 246 Transmission, accidental carriers in, 241 agency of, 232 of contagious diseases, 232 of disease, 26, 28, 35, 239 of glanders, 26, 34 of protozoal diseases, 242 of tuberculosis, 28, 29, 34, 35, 238 Transverse division, 54, 56 TRAUBE, 271 _Treponema pallidum_, 245 Trichina, 27 _Trichina spiralis_, 27, 34, 35 Trichinosis, 28, 35 Trichophyton, 243 _Trichophyton tonsurans_, 28, 34 Trimethylamine, 104 Tropical dysentery, 29 lands, 242 Tropisms, 203 True toxins, 128 Trypanosomes, 242 Trypanosomiases, 241, 243 Tubercle bacteria, 85, 209 Tuberculin reaction, 292, 293 Tuberculosis, 73, 233, 238, 245, 246, 248, 249 due to bacteria, 30 produced experimentally, 28, 34 proved infectious, 29, 35 Tuberculous milk, 248 Tubes, culture, 184 deep, 190 fermentation, 184, 190 Smith, 184 Vignal, 189 Two spores in a bacterium, 50 TYNDALL, 24 Tyndallization, 133 Tyndall’s box, 23, 24, 35 Typhoid bacilli, 73, 238 bacillus, 45 carriers, 239 fever, 231, 233, 248, 265, 268 transmission by flies, 242 vaccine, 254 Typhus, 242 Typical cell forms, 52 U ULTRAMICROSCOPE, 204 Ultramicroscopic organisms, 234 Ultraviolet rays, 150 Unfavorable environment theory, 256 Unit of antitoxin, 264 of measurement, 40 Universal carrier, 240 Unorganized ferment, 126 Unwashable articles, 169 Urea, 106 Urease, 125 Urethral discharges, 248 Urine, 72 Urticarial rashes, 292 V VACCINATION in chicken cholera, 30 negative phase in, 287 in pneumonia, 241 in smallpox, 26, 34, 253 Vaccine, 253 age of, 285 anthrax, 254 antigens for, 285 autogenous, 285 black-leg, 254 derivation of, 253 mixed, 285 polyvalent, 285 preservative in, 284 sensitized, 254 smallpox, 253 Vaccines, bacterial, 283 in colds, 241 dosage of, 286 in epidemics, 241 failure of, 285-286 in infections, 286 preparation of, 283 standardization of, 284 stock, 284 theory of, 286 use of, 283 Vacuoles, 42, 43, 44, 59 Vaginal discharges, 248 VARO, 25 VAUGHAN, 291 Vaughan and Novy’s mass cultures, 188 Vegetable toxins, 127, 128 Vegetables, forcing of, 117 Vehicles, disinfection of, 169 Venoms, antisnake, 275 VIBORG, 26, 34 Vibration, mechanical, 80 Vibrio, 33, 35, 53, 65, 68, 69 _choleræ_, 66, 73 Vignal tubes, 189 VILLEMIN, 29, 35 Villous growth, 219, 221