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. 



Tetraooccus, 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. 

 TrUlat'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. 



U 



Urease, .205. 



Vacuole, 27. 



Vibrio, 2. 



Vibrio aureus, 240. 



cholerae, 114, 115, 207. 



flavescens, 240. 



flavus, 240. 



hydrosulfureus, 144. 



saprophilus, 240. 

 Vibrion butyrique, 103, 208. 

 Vinegar, preparation of, 222. 

 Vinegar-plant, 208. 

 Volutin, 15, 16. 



W 

 Warington, 196. 

 Warming, 147, 149, 150. 

 Water, bacteria in, 78-81. 

 Weber's law, 64. 

 Whey, 228. 

 Whiskey, 216. 

 Wine, 217. 



,, diseases of, 218-219. 

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



192, 234. 

 Weltering, 160. 

 Woronin, 178. 

 Wort, 200. 

 Wunderblut, 107. 



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

 charomyces. ) 



„ in production of beer, 212. 



„ bottom-fermentation, 212. 



„ top-fermentation, 212. 



„ turbidity in, 214. 

 Yung, 54. , 



Zickendwerden, 219. 



Zoogloea, 36, 37, 43, 152, 187, 188, 



189, 190, 193. 

 Zopf, 160. 

 Zymase, 206. 

 Zymogenes, 204. 

 Zymogenic bacteria, 72. 



GLASGOW: PRINTED AT THB UNIVERSITY PRESS BY ROBERT MACLEHOSE AND CO. LTD. 



