898 



INDEX 



Trypanosomiases, human, 831 

 Trypsin, 194, 198 

 Tryptophan, 170 

 Tuberculin, Koch's old, 581, 582 



Koch's other (T. R., B. E., etc.), 

 584^ 

 Tuberculosis, 779 



animals, 779 



man, 779 



sugar-bfeet, 611 



vaccine, 584 

 Typhoid fever, 258, 259, 792 

 Typhus fever, 820 

 Tyrosin, 170 

 Tyrosinase, 194, 202 

 Tyrothrix, nivea, 108 



UDDER of cow, 369 



bacteria from quarters, 371 

 from entire udder, 370 



Bact. lactis acidiin, 3'7l 



diseased, 372 



exterior, 372 



healthy, 369 



interior, 369 



wiping of, 376 

 Ultramicroscopic organisms, 116, 660 

 Ultramicroscopic viruses, 136 

 Undulating membrane, 25, 124 

 Upland surface waters, 262 

 Urea, 146, 153 



fermentation, 173, 279 



as food, 146 

 Urease, 200, 201 

 Uric acid, 173 

 Urospora lagidis, 33 

 Utensils of milk, 375 



VACCINE, anthrax, 570 

 Asiatic cholera, 573 

 bacterial, 571 

 black leg, 565 

 bubonic plague, 574 

 hog cholera, 568 

 kinds of, 562 

 manufacture of, 560 



Vaccine, rabies, 566 



sensitized, 574 



smallpox, 563 ~ 



tuberculosis, 571 

 Vacuoles, 22 



pulsating, 22 

 Variation, physiological, 161 



in structure of cells, 40, 59, 77, 

 121 

 Vegetables, 554 



canned, 466 



pickles, 554 



preservation, 482 



refrigeration, 477 



sauerkraut, 554 

 Vegetable poisoning, 494 

 Vegetation, influencing on organisms 



in water, 264 

 Vinegar, acetic fermentation, 538 



after-treatment of, 549 ' 



apparatus for manufacture of, 543 



bacteria, 538 



cultures for, 543 



diseases of, 549 



domestic method, 543 



fermentation of, 542 



German method, 543 



manufacture of, 541 



Orleans method, 543 



Pasteur method, 543 



as preservative, 486 



raw materials of, 541 



rotating barrel method, 548 



starters for, 543 



yeasts, 538 

 Virulence of infection, 674 

 Virus, 561 



attenuation, 562 

 Volutin, 149 



WALKER'S hyacinth disease, 618 

 Wassermann's test, 709 

 Water, analysis (qualitative and quan- 

 titative), 265, 266 

 B. coli in, 257 

 enteritidis in, 257 



