262 



INDEX 



Streaming filter, 254. 

 Streptococcus, 36, 41, 43, 245. 

 Streptococcus acidi lactici, 207, 224. 



erysipelatis, 91. 



liquefaciens coli, 241. 



mesentericus, 37. 



mirabilis, 241. 



pyogenes, 19, 91, 127. 

 Streptothrix, 8, 

 Subsidence tanks, 253. 

 Sugar as preservative, 168. 

 Sulphur-bacteria, 73, 144-151. 



,, classification, 145. 



,, introduction, 144. 



physiology, 149. 



Sulphuretted hydrogen, 111. 

 Sweating in tanning, 231. 

 Symbiosis, 43, 220. 



Tanning, 231-233. 



Tea, 238. 



Temperature, influence on bacteria, 



53. 

 Termobacterium aceti, 223. 



,, lutescens, 223. 



Tetracoccus, 4. 



Thames, number of bacteria in, 79. 

 Thea Chinensis, 238. 

 Theobroma cacoa, 238. 

 Thermogenic bacteria, 73, 130-134. 

 Thermophilic bacteria, 86, 130-134. 

 Thiophysa, 145, 146. 

 Thiothrix, 145, 146, 147, 148. 

 Thrombose, 206. 

 Tobacco, 235-237. 



,, curing of, 235. 



,, nature of fermentation, 236. 



,, sweating, 236. 

 Tomatoes, disease in, 130. 

 Toxins, 116. 

 Train-oil flavour, 227. 

 Trickling filter, 254. 

 Tricoccus, 4. 

 Trillat's apparatus, 92. 

 Trimethylamine, 114. 

 Trypsin, 205. 

 Tryptophan, 115. 

 Tuberculin, 121. 

 Turning of beer, 215. 



wine, 219. 



Turnip-flavour of butter, 227. 

 Tyndall, 58. 



Typhoid bacillus (see Bac. typhosus). 

 Typho-toxine, 117. 



Tyrosin, 115. 

 Tyrosinase, 206. 

 Tyrothrix geniculatus, 230. 

 Tyro-toxicon, 230. 



Urease, 205. 



U 



Vacuole, 27. 



Vibrio, 2. 



Vibrio aureus, 240. 



cholerae, 114, 115, 207. 



flavescens, 240. 



flavus, 240. 



hydrosul fureus, 144. 



saprophilus, 240. 

 Vibrion butyrique, 103, 203. 

 Vinegar, preparation of, 222. 

 Vinegar-plant, 208. 

 Volutin, 15, 16. 



W 



Warington, 196. 

 Warming, 147, 149, 150. 

 Water, bacteria in, 78-81. 

 W^eber's law, 64. 

 Whey, 228. 

 Whiskey, 216. 

 Wine, 217. 



diseases of, 218-219. 

 Winogradsky, 145, 160, 186, 187, 189, 



192, 234. 

 Woltering, 160. 

 Woronin, 178. 

 Wort, 200. 

 Wunderblut, 107. 



Yeast, 94, 199, 200. (See also Sac- 

 charoinyces.) 



,, in production of beer, 212. 



,, bottom-fermentation, 212. 



top-fermentation, 212. 



,, turbidity in, 214. 

 Yung, 54. 



Zickendwerden, 219. 



Zooglcea, 36, 37, 43, 152, 187, 188, 



189, 190, 193. 

 Zopf, 160. 

 Zymase, 206. 

 Zymogenes, 204. 

 Zymogenic bacteria, 72. 



GLASGOW: PRINTED AT THE UNIVERSITY PRESS BY ROBERT MACLEHOSE AND co. LTD. 



