INDEX. 



351 



Van Ermengem's method for stain- 

 ing flagella, 59 



Vegetative forms of bacteria, 122 

 Venom of snakes, 174, 188 

 Vibrio, definition, 120 



aquatilis, 326 



Berolinensis, 326 



Metchnikovi, 323 



proteus, 324 



rugula, 228 



Schuylkiliensis, 326 

 Vibrion septique, 270 

 Villemin, 22 

 Vincent, bacillus of, 229 

 Vinegar, bacteria in, 15 

 Violet, gentian-, 39, 40 



methyl, 201 

 Virulence of bacteria, 126, 168 



WARMTH, effect on growth of 

 bacteria, 125 

 Water, bacillus coli communis in, 



143, 144 

 bacteria of, 136 



conveyed by, 137, 164 

 filtration, 138 

 ground-, 137 



infections carried by, 137 

 number of bacteria in, 140 

 pathogenic bacteria in, 137, 142 

 purification by ozone, 139 

 samples of, 108, 139 

 self-purification, 138 

 spirilla in, 114, 228, 326 

 sterilization of, 139 

 storage of, 138 

 Watery solutions of aniline dyes, 39 



Weir's method for disinfecting 



hands, 213 

 Welch's stain for capsules, 57 



hypothesis, 190 

 Whooping-cough, 160 

 Weigert's stain for fibrin and bac- 

 teria, 53 

 Widal's serum-test for typhoid fever, 



304 

 Wire baskets, 83 



platinum, 33 



silver, 218 



Wolffhiigel plate, 141 

 Wounds, infected, 220 



infection of, 167, 238 



irrigation of, 220 

 Wool-sorters' disease, 135, 276 

 Wright's stain for blood, 55 



method for anaerobes, 92 

 Wurtz's culture-medium, 303 

 Wurzcl bacillus, 225 



X-RAYS, 127 

 Xerosis bacillus, 283 

 Xylol, 49, 52 



YEASTS, 231, 114, 135, 155 

 Yellow fever, 335, 160, 161, 



165, 204, 207 

 Yellow tubercle, 292 

 Yersin's serum for plague, 267 



ZIEHL'S carbol-fuchsin, 45 

 Zinc chloride, 208 



sulphate, 208 

 Zoogloea, 122 



