850 



INDEX OF SUBJECTS 



"Typhoplasmin," 416 



Typhus fever, bacillus of Plotz, 678 



bacillus of Ricketts and Wilder, 677 



distribution of, 677 



etiology of, 677 



identity of, with Brill's disease, 677 



inoculation of animals with, 677 



transmission of, 679 



URINE, bacteriological examination of, 



176 



Urobacillus liquefaciens, 455 

 Uschinsky's proteid-free medium, 126 



VACCINE production, for immunization 



in smallpox, 660 

 animals used in, 660 

 calves used for, 660 



cleanliness observed in stabling of, 



660 

 material used for vaccination of, 



661 

 1 vaccination in, 661 



preparation of field in, 661 



scarifications in, 661 



vaccinia vesicles developed in, 



661 



obtaining of vaccine from, 662 

 by curettage, 662 

 by ivory tips, 662 

 testing of vaccine in, for bacteria, 662 



for efficiency, 662 

 Vaccine therapy of Wright, 286 

 dosage for, 288 

 opsonic curve in, 288 

 production of vaccines in, 286 

 standardization of emulsion in, 287 

 enumeration of bacteria against 



red blood cells in, 287-288 

 sterilization of vaccine in, 288 

 Vahlkampfia, 723 

 Van Ermengem, discovery of Bacillus 



botulinus by, 476 

 Van Ermengem's method of staining 



flagella, 101 



Variola. See Smallpox 

 Vegetative forms from bacterial spores, 

 17 



"Vibrion septique." See Malignant 



edema, bacillus of 

 Vincent's angina, 610 

 spirochaete of, 611 

 cultivation of, 613 

 fusiform variety of, 612 



bacilli of other diseases resem- 

 bling, 613. See also under Fu- 

 siform bacilli 



other bacilli accompanying, 613 

 spirillum variety of, 613 

 symptoms of, 610 

 Vincent's spirilla, staining of, 108 

 Virulence, definition of, 183 



determination of, in diphtheria ba- 

 cilli, 519 

 problem of, 291 



variations in, and infectiousness, 183 

 Virulent bacteria, sublethal doses of, in 



immunization, 195 



Virus fixe, in specific therapy of rabies, 

 652 



WADSWOBTH'S method of staining cap- 

 sules, 99 



Wassermann test for diagnosis of syph- 

 ilis, 263 

 antigen for, 263 



determination of necessary quan- 

 tity of, 265 



obtaining of, from alcoholic ex- 

 tracts of syphilitic organs, 263 

 from alcoholic solution of normal 



organs, 263 

 from salt solution of syphilitic 



liver, 263 



of syphilitic spleen, 263 

 preparation of, by Noguchi meth- 

 od, 266 



complement in, 267 

 hemolytic serum in, 265 

 obtaining of, 265 

 potency of, 265 

 quantity of, 265 

 unit in, definition of, 265 



determination of, 265 

 modifications of, 268 



