INDEX OF SUBJECTS 



851 



Wassermann test for diagnosis of syph- 

 ilis, modifications of, Bauer's, 

 269 



Noguchi's, 269 

 performed with Spirochseta pallida 



antigen, 604 

 preparation for, 263 

 serum to be tested for syphilitic anti- 

 body in, 267 



sheep corpuscles in, 267 

 technique of, 268 

 Water, bacteria in, 689 

 in bacterial cell, 21 

 in ground waters, 691 

 in perennial springs, 692 

 in wells, 691 

 in rain and snow, 690 

 in surface waters, 690 

 influence of rain on, 690 

 light and temperature factors in 



purification of, 691 

 self-purification in, 690 

 pathogenic, 689 

 of cholera, 689 

 of diarrheal diseases, 689 

 of typhoid fever, 689 

 presumptive colon tests for, 697 

 qualitative analysis of, 694 



isolation of cholera vibrio in, 695 



Koch's method of, 696 

 isolation of colon bacillus in, 696 

 isolation of typhoid bacillus in, 



694 

 Adami's and Chapin's method 



of, 695 



Drigalski's method of, 695 

 Vallet's method of, 695 

 quantitative estimations of, 692 

 collecting of specimens for, 692 

 colon bacilli in, 696 

 colon test in, 697 



counting of bacilli in, 698 

 counting in, 694 

 incubation of specimens in, 694 

 plating of specimens in, 692 

 value of, 694 



bacteriological examination of, 

 693 



Weil's disease, 617 



Welch, discovery of Bacillus aerogenes 



capsulatus by, 471 



Welch's method of staining capsules, 98 

 Welch's modification of Guarnieri's 



medium, 129 

 Wertheim's medium for cultivation of 



gonococcus, 381, 382 

 Winckel's disease in the newborn due 



to colon bacillus, 394 

 Wires used in transferring bacteria, 141 

 Wolffhiigel counting plate, 162 

 Wool-sorter's disease, 573 

 Wright, method of, of anaerobic culti- 

 vation of bacteria, 150 



modification by, of Buchner's pyro- 

 gallic method of cultivation of 

 anaerobic bacteria, 153 



theory of opsonins of, 282 



vaccine therapy of. See Vaccine 



therapy of Wright 

 Wright's stain, 796 



XEROSIS bacillus, 524 



YAWS, 614 



Yeast cells, cultivation of, 633 

 demonstration of, 632 

 morphology of, 629 

 reproduction in, by budding, 629 



by spore formation, 630 

 Yeasts, 629 



differentiation of, from other microor- 

 ganisms, 629 

 fermentation by, 630 

 industrial employment of, for fer- 

 mentative purposes, 52 

 infection of, in animals, 632 

 in man, 631 



clinical picture of, 632 

 pathogenic varieties of, 633 

 Yellow fever, 668 



clinical picture of, 668 

 distribution of, 668 

 etiology of, 668 

 immunity of, 674 



