INDEX. 



389 



Silver prints, 369-372, 373, 374. 

 ,, sulphide, formation of, 18, 19. 

 tree, 132. 



Soap, 70, 71, 157, 158, 228-231. 

 Soap bubbles, 84, 85, 110, 254-262. 

 Soap films, experiments with, 254-262. 

 Soda caustic, decomposition of, 18. 

 properties of, 130, 139, 155, 



156, 228, 229. 



production of, 156. 

 Soda lime, 184, 185. 

 Sodium, 156, 212, 225. 

 acetate, 159. 

 amalgam, 156. 



carbonate, 128, 135, 139, 140, 150. 

 chloride (salt), 61-65, 69, 71, 99, 

 101, 122, 136, 139, 159, 171, 320, 321. 

 chloride, decomposition of, 17, 18. 

 formate, 198. 

 hypobromite, 156. 

 hyposulphite, 152. 

 nitrate, 170, 171 



formation of, 18, 121. 

 phosphate, decomposition of, 18. 

 silicate, 129. 

 sulphate, 68, 69. 

 sulphite, 120, 152. 

 thiosulphate, 152, 155, 366, 371. 

 Solder, fusibility of, 26. 

 Soldering, 37, 55, 56. 

 Solids, physical properties of, 1-3. 

 Solution, 21, 61-99, 116-160. 

 Sound, 287. 

 Sounds produced by hydrogen flame, 190, 



191. 



Spectroscope, 288, 321. 

 Spectrum, 314-316. 

 Starch, 102, 103, 154, 155, 169, 176. 

 Steam, decomposition of, 213, 214. 

 formation of, 38. 

 ,, pressure of, 40-42. 

 properties of, 256, 287. 

 Stearine, 29, 30. 



Steel as a precipitant for copper, 15, 131. 

 ,, engraving of, 226, 227. 

 properties of, 232, 252. 

 Stereoscope, 321-326. 

 Strontium chlorate, 221. 



nitrate, 211, 220. 

 Sublimation, 58-60. 

 Sugar, 65, 66, 68, 71, 122, 134, 173-179, 216, 



217, 228, 244. 

 cane, 173. 

 ,, grape, 173. 

 test for, 124, 125. 

 milk, 173. 

 Sulphindigotic acid, 146. 

 Sulphur, casting in, 11. 



,, crystallised, 25, 26. 



precipitated, 152. 



properties of, 187, 201, 209, 217, 



219, 220, 221, 223. 

 Sulphur dioxide (sulphurous acid) as a 



freezing agent. 

 properties of, 133, 135, 



202, 207, 208. 

 ,, synthesis of, 19, 20, 120, 



152, 156, 201, 202. 



Sulphuric acid (oil of vitriol), 105, 106, 117, 

 120, 134, 155, 156, 159, 179, 217, 225. 



Sun, 288, 290. 



Sunshine recorders, 358, 359. 

 Superfusion, 35, 368. 

 Supersaturation, 35, 86, 368. 

 Surface tension, 255. 

 Synthesis, 14, 20. 



TANNIN, 102. 

 Tar, 183, 184. 

 Tartar emetic. See Antimony-potassium 



tartrate. 



Tartaric acid, 236. 

 Telescope, 344-348. 

 Temperature, relation of physical state to, 



12, 13. 



Thaumatropes, 317, 318. 

 Thermometer, construction of a, 31-34. 



scales, 31-34. 



Tin, 93, 158, 216, 222, 241, 242, 284. 



,, chloride, 158. 



,, oxide, 222. 

 Touch paper, 219. 

 Translucency, 296, 297. 

 Transparency, 292. 

 Turmeric, 138. 



URANIUM, 290. 

 Uric acid, 184, 185. 



VEGETABLE matter, 181. 



Ventilation by means of brattices, 145. 



Vinegar, 179. 



WASHING soda. See Sodium carbonate. 

 Water, absorption of, by colloids, 73. 



,, action of, on heat, 357, 358. 



on light, 294, 299, 300, 



329-331. 



boiling-point, 37-39. 



capillarity, 250-254. 



combination with lime, 208, 209. 



conductivity of, 278-280. 



convection currents, 272, 273. 



decomposition of, 140, 156, 212. 



distillation of, 42-46. 



expansion of, 264, 266, 267. 



,, hardness of, 149-150. 



., miscibility, 91, 92, 93, 105, 106. 



of crystallisation, 227. 



pressure of, 281, 282. 



separation of, 46, 48, 61-65. 



specific heat of, 282-285. 



, , formation of, 14, 188, 189, 200, 209, 210. 

 Weather prognosticators, 131. 

 Welding, 36. 

 Wine stains, 154. 

 Wood, 183, 184, 276. 

 Woodbury-type, 378. 

 Wood spirit, 184. 

 Wool, 244, 245. 



YEAST, 174. 



ZINC as a precipitant of hydrogen, 15, 16. 



,, crystalline structure of, 24, 25. 



granulation of, 23, 24. 



, properties of, 93, 94, 132, 156, 157, 204, 



209, 225, 264. 



Zinc oxide (zinc white), 142, 143, 157, 225. 

 Zinc sulphate, 127, 128. 

 Zoetrope, 318, 319. 



