INDEX. 
Vesuvin as a stain, 25 
as a double stain in bacterial prepa- 
rations, 28 
Vibrio, general characters, 18 
aquatilis (Giinther), remotely resem- 
bling the spirillum of cholera, 606 
Berolinensis (Neisser), its differenti- 
ation from the cholera spirillum, 
607 
Danubicus (Heider), its differentia- 
tion from the cholera spirillum, 
608 
of Ehrenberg, 3, 10 
helcogenes (Fischer), remotely resem- 
bling the cholera spirillum, 607 
Metschnikovi (Gameléia), 604 
Vibrion septique (Pasteur), 580 
Vibrioniens of Ehrenberg, 3, 10 
Vibrio-proteus, 602 
Vibrios of Celli and Santori, 608 
resembling the spirillum of cholera, 
606 
list of species found in water, 639 
phosphorescent, not genuine cholera 
germs, 608, 609 
Vincent’s method of detecting colon ba- 
cilli in water supplies, 640 
Violet rays of spectrum, germicidal 
power of, 161 
Virulence, attenuation of, in cultures, 
130, 388 
intensification of, 132, 388 
recovery of, 132 
Viscous fermentation, 141 
Vital resistance theory of immunity, 252 
Vitality of bacillus of hog cholera, 505 
of the typhoid bacillus in cultures, 
442 
Von Dungern’s capsule bacillus distin- 
guished from others of similar mor- 
phology, 562 
Water, action of, on the cholera spiril- 
lum, 597 
bacteria in, 626 
list of species found in, 638 
number not dependent on the 
amount of organic matter pres- 
ent, 635 
distilled, growth of bacteria in, 685 
107 
Water, pathogenic bacteria that may be 
present in, 636 
bacteria, detection of, 640 
bacteriological analysis of, 628 
collection of, for analysis, 627 
importance of immediate exam- 
ination, 627 
chemical analysis of, advantages of, 
631 
filtration, efficiency determined by 
counting colonies, 641 
supplies, detection of colon bacilli 
in, 535 
difficulty of finding typhoid 
bacilli in, 441, 444 
sanitary inspection of source 
more important than bacterio- 
logical or chemical analysis, 
641 
vibrios, remotely resembling the 
spirillum of cholera, 606 
Waters, surface, frequency of the colon 
bacilli in, 640 
Weichselbaum’s diplococcus intracellu- 
laris meningitidis, 410 
micrococcus endocarditidis rugatus, 
416 
Weigert’s method of staining bacteria in 
tissues, 35 
of staining used in sections of 
nodules of glanders, 493 
Welch and Abbott’s cultivation of the 
bacillus of diphtheria on po- 
tato, 455 
inoculations of kittens with the 
diphtheria bacillus, 452 
Well water, number of bacteria in, 634 
Widal reaction given by blood serum of 
those subjected to antityphoid 
inoculation, 369 
in Malta fever, 421 
Wildseuche, 287, 499 
Winogradsky’s silicate jelly, 47 
Wintergreen, antiseptic power of, 203 
Wolffhiigel’s experiments on the thermal 
death-point of bacteria, 154 
Wolter’s opinion that positive results in 
attempts to inoculate leprosy were due 
to associated tubercle bacilli, 488 
Woollen underclothing bacteria on, 649 
