INDEX OF SUBJECTS 



7C5 



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 

 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, 663 

 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, 287-8 

 sterilization of vaccine in, 288 

 Van Ermengem, discovery of Bacillus 



botulinus by, 475 

 Van Ermengem's method of staining 



flagella, 101 

 Variola. See SmaUpox. 

 Vegetative forms from bacterial spores, 17 

 "Vibrion septique." See MaUgnant 



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 baciUi accompanying, 613 

 spirillum variety of, 613 

 symptoms of, 610 

 Vincent's spirilla, staining of, 108 

 Virulence, definition of, 183 



variations in, and infectiousness, 183 

 Virulent bacteria, sublethal doses of, in 



immunization, 195 

 Virus fixe, in specific therapy of rabies, 652 



Wadsworth's method of staining cap- 

 sules, 99 

 Wassermann test for diagnosis of syph- 

 iUs, 262 

 antigen for, 262 

 determination of necessary quantity 



of, 264 

 obtaining of, from alcohohc ex- 

 tracts of syphiUtic organs, 263 

 from alcohohc solution of normal 



organs, 263 

 from salt solution of syphilitic 

 hver, 263 

 of syphilitic spleen, 262 

 preparation of, by Noguchi meth- 

 od, 264 

 complement in, 266 

 hemolytic serum in, 265 

 obtaining of, 265 

 potency of, 265 

 quantity of, 265 

 unit in, definition of, 265 

 determination of, 266 

 modifications of, 268 

 Bauer's, 268 

 Noguchi's, 270 

 performed with Spirochseta pallida 



antigen, 604 

 preparation for, 262 

 serum to be tested for syphilitic anti- 

 body in, 267 

 sheep corpuscles in, 267 

 technique of, 267 

 Water, bacteria in, 689 

 in ground waters, 091 

 in perennial springs, 692 

 in wells, 691 

 in rain and snow, 690 

 in surface waters, 690 

 influence of rain on, 690 

 Uerht and temperature factors in 



purification of, 691 

 self-purification in, 690 

 pathogenic, 689 

 of cholera, 689 

 of diarrheal diseases, 689 

 of ts^phoid fever, 689 

 qualitative analysis of, 694 



