INDEX 



523 



Chemical analysis of water from 

 river Ouse before and after sand 

 nitration, 118 



of water before and after ni- 

 tration through coke, also animal 

 charcoal, 171 



effect on water, by nitration 

 through Chamberland filter, 172 



precipitation, effect of, on sew- 

 age bacteria, 205-216 



Chemicals, cost of, for sewage puri- 

 fication, 210 



Cholera bacillus (Comma bacillus 

 or Spirillum cholerae asiaticae), 

 399 



Cholera bacillus, growth on pota- 

 toes of, 23 



and sand filtration, 158 



and Berkefeld filter, 177, 178 



and high temperature, 184 



behaviour in ice of, 254, 255 



detection in water of, 276- 

 283 



inoculation of, into guinea- 

 pigs and marmots, 282, 399 



behaviour in carbonic-acid 



gas of, 237 



discovery in water of, 262- 

 264 



action of peroxide of hydro- 

 gen on, in water, 246 



behaviour of, in water in : 



presence of various salts, 301- i 

 306 



action of light on, 372, 386- 

 388 



- insolation and virulence of, 

 386-388 



- vitality in water of, 296-309 



microscopic figure of, 296 



spirilla found in water re- 

 sembling, 283, 400-403 



Cholera and Hamburg water supply, 



152-154, 305, 306 



Altona water supply, 152-154 



Cholera-red-reaction, 281 



Choleras gallinarum b, vitality of, in 



water, 324, 329 

 Choleroides o, B,, 401 

 Clioleroides /3, B., 402 

 Cinnabar eus, M., 4961 

 Circulans, B., 436 

 Citreus, M., 499 

 Cladothrix, 513 

 Cladothrix dichotoma, 514, 515 



Cladothrix invulnerabilis, 516 



intricata, 517 



Clark's process for softening water, 



185, 190, 191, 196 

 Clay, potter's, agitation of water 



with, 198 

 Cloacae, B., 433 

 Caeruleus, B., 474 

 Cohn, Culture solution, 26 

 Coke, the filtration of water through, 



169-171 



agitation of water with, 195, 

 200 



Coli communis, B., 411 



- discovery in mud of, 259, 260 



presence with typhoid in 

 water of, 268 



diagnosis of typhoid in pre- 

 sence of, 268-276 



production of gas by, 269, 270 



action of light on, 371 



Concentricum, Spirillum, 408 

 Concentricus, M., 495 

 Constrictus, B., 484 



Copperas, purification of sewage 



with lime and, 206, 207 

 Cotton-wool, sterilisation of, 11 



multiplication of bacteria in 

 vessels plugged with, 234, 235 



Counting bacteria, apparatus for, 



34, 76-79 



Cover glasses, cleaning of, 50 

 Cover-glass preparations, 50-52 

 Crassus aromaticus, B., 480 

 Cremo'ides, M., 500 

 Crenothrix, 511 

 Crenothrix Kiihniana, 512 

 Culture media, 6-28 



- action of light on, 345-347, 

 349, 355, 356, 358, 359 



use of special, in water ex- 

 aminations, 63-7B 



- liquid, 24-28 



- Pasteur's, 26 



- Cohn's, 26 



Naegeli's, 26 



- Percy Frankland's, 26, 27 



- Warington's, 27 



Uschinsky's, 28 

 solid, 7-24 



amount of sulphur normally 

 present in, 16 

 Cuniculicida, B., 429 



and septicaemia, 258 



vitality of, in water, 323 



