Sulphuric acid, 166. -- action of, on cotton, 10. Sulphyl colours, 121. Sumac, 83, 147, 148, 165, 166, 167, 172, 173, 178, 239. -- extract, 169, 175, 219, 220. Sun yellow, 90. T. Tannic acid, 18, 20, 83, 147, 172. -- mordant, dyeing on, 147. Tannin, 173, 174, 236. -- grounding, 173. -- heliotrope, 145, 153, 229. -- orange R, 154, 155, 229. Tanning, 148. Tartar emetic, 147, 192, 219, 220. Tartaric acid, 180. Temperature of dye-baths, 226. Terra-cotta brown, 143. -- red, 90, 143. Testing of the colour of dyed fabrics, 257. Thiazole yellow, 93, 94, 209. Thiocarmine R, 84, 211, 214. Thioflavine S, 94, 104, 106, 209, 213, 215, 222, 223, 228, 229. -- T, 153, 154, 229, 231, 232. Tin crystals, 147, 169, 179. -- oxide, fixing, 158. Titan blue, 210, 211. -- -- 3 B, 93, 102, 164. -- -- R, 102. -- brown O, 210. -- -- P, 164. -- -- R, 102, 210. -- -- Y, 161, 210. -- colours, 227. -- como G, 95. -- -- S N, 98. -- dyes, 18, 85. -- gold, 101, 102. -- ingrain blue, 135, 136, 142. -- marine blue, 211. -- navy R, 98. -- orange, 88. -- -- N, 95. -- pink, 210. -- red, 107. -- scarlet C, 88. -- -- D, 88. -- -- S, 209. -- yellow, 210. -- -- G, 145. -- -- G G, 90. Titan yellow Y, 90, 92, 93, 164. Toluidine, 185, 187, 188. -- orange, 196. Toluylene brown, 139. -- diamine, 134. -- orange, 139. -- --G, 90, 91, 100. -- --K, 100. Topping, 140. -- with acid and basic dye-stuffs, 228. -- with basic dyes, 145. Triamine black, 132. -- -- B, 96, 137. -- -- B T, 98. Tropaeoline O, 229. -- O O, 211, 229. Truck yarn-dyer, 254, 255. Turkey red, 87, 167, 181. -- -- bleach, 38, 39. -- -- oil, 88, 90, 95, 96, 160, 170, 171, 172, 173, 180, 189, 192, 196. Turmeric, 165, 166, 167. Turquoise blue, 98, 116, 151, 155, 232. -- -- G, 146, 151, 152. U. Union black B, 209, 214. -- -- S, 209, 214, 215, 216, 217, 228, 234. -- blue B B, 209. V. Valonia, 147. Verdigris, 177. Victoria blue, 150. -- -- B, 151, 152. Vidal black, 107, 121, 123. -- blacks, 79. Violet, 99, 100, 146, 154, 230. -- and yellow shot dyes, 238. -- blue, 97. W. Walnut brown, 102, 119, 138, 142, 219, 233. Warp bleaching, 43. Warp-dyeing machines, 69, 70, 71. Washing after dyeing, 239. Washing and soaping vats, illustration of, 248. -- of cotton in bleaching, 36. -- operations after dyeing, 242. Water blue, 229. -- of condition, 6. -- volume used in dyeing, 107. White indigo, 198. -- liquor treatment, 168. -- sour operation, 38. Whizzing, 45. Willesden waterproof cloths, 22. Wince dye beck, 74. Witz, George, 17. Wool black 6 B, 211, 217, 218, 223, 224. -- green, 84. Worral's singeing machine, 27. Wringing of dyed goods, 239. Y. Yarn bleaching, 43. -- -washing machine, illustration of, 243. Yarns in cop form, washing of, 244. -- in hanks, washing of, 244. -- in hanks, wringing of, 240. Yellow, 90, 91, 113, 151. -- and violet shot dyes, 237. -- olive, 91. Yellowish claret red, 187. Young & Crippin's cop-dyeing machine, 68. Z.