no 



BACTERIOLOGY 



Vacuoles in cells, 12, 288 

 Vagina, micro-organisms of, 222-3 

 Vaginalis, Bac., 223, 228 

 Ventriculi, Sarcina, 246 

 Versicolor, Mic., 105 

 ' Vibrion septique,' 160 

 Vibrios, 2, 4 



aureus, 121 ; V. cholera, 139 ; V. 

 flavescens, V. flavus, 121 ; V. Met- 

 schnikoffi, 147 ; V. proteus, 145 



Vienna, water-supply of, 136 

 Vinegar ferment, 191 

 Violaceus, Bac., 132 

 Virulence, 6 

 Virus, exalted, 283 

 Viscosus, Mic., 192 



butyri, Bac., 183 ; V. cerevisice, 

 Bac., 192 ; V. lactis, Bac., 184 ; V. 

 sacchari, Bac., 193 



Viticulosus, Mic., 106 



WAFERS, cultivation on, 53 



WARD, researches on the action of 



light on bacteria, 297-300 

 Warm chamber, 20. See Incubator 

 Water, analysis of, 122 ; W. bacteria, 



122; W., drinking, 124; ground, 155; 



methods of examining, 125 ; Kirch- 



ner's, Pfuhl's, 126 ; other methods, 

 127 ; micro-organisms in, 122, 124, 

 153 ; spirilla in, 153 ; spring, 124 ; 

 variations in, depending on source, 

 124 



WEICHSELBAUM, method of staining 

 tubercle bacilli, 75 ; pneumococcus, 

 271 



WEIGERT, modification of Gram's me- 

 thod, 78, 89 



WELZ, method of air-analysis, 99 



Whooping cough, 275 



WOLFFHUGEL, counting apparatus, 125 



' Wurzelbacillus,' 133 



Xerosis, Bac., 232 



YEAST, 12, 104 ; black y., 105 ; y.-cells, 

 12 ; pink y., white y., 105 



ZIEHL'S solution, 70 



and NEELSEN'S method, 74 



Zooglraa, 4 



Zopfi, Bact., 251 



Ziiernianum, Bact., 137 



Zygospores, 194 



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