428 



INDEX. 



Soap-bubbles of hydrogen with oxy- 

 gen, 191. 



Soaps, 517. 



Soda ash, 301. 



Soda saltpetre, 305. 



Sodium, 294. 



Sodium bi-borate, 269. 



Sodium carbonate, 301. 



Sodium chloride, 296. 



Sodium hydrocarbonate, 302. 



Sodium sulphate, 303. 



Soft soap, 518. 



Soil, constitution-of, 489. 



Soil, origin of, 491. 



Soil, treatment of, 487. 



Soil, varieties of, 493. 



Soil, water in, 488. 



Solder, 278. 



Soot, 91. 



Specific gravity of metals, 271. 



Spectra, continuous, 398. 



Spectra, discontinuous, 399. 



Spectra of alkaline metals, 402. 



Spectra of heavy metals, 404. 



Spectroscope explained, 401. 



Spectrum analysis, 402. 



Spectrum, experiments with the, 394. 



Spectrum of white light, 393. 



Spongy platinum, 386. 



Spontaneous combustion, 192, 521. 



Stalactites, 317. 



Stalagmites, 317. 



Starch converted into sugar, 463. 



Starch, grains of, under the micro- 

 scope, 450. 



Starch, iodide of, 452. 



Starch, occurrence of, 448. 



Starch, preparation of, 449. 



Starch, properties of, 451. 



Steel, Bessemer process for, 344. 



Steel burned in oxygen, 59. 



Steel, nature of, 343. 



Steel, tempering of, 345. 



Stephenson, anecdote of, 391. 



Stereopticon, 189. 



Stoichiometry, 36. 



Strychnine, 531. 



Suboxide, 62. 



Substitution in organic bodies, 421. 



Sucrose, 457. 



Sugar, cane, 458. 



Sugar, cheating in, 462. 



Sugar, grape, 460. 



Sugar, milk, 459. 



Sugar of lead, 373. 



Sugars in general, 456. 



Sugars, varieties of, 457. 



Sulphate of magnesium, 329. 



Sulphur, amorphous, 235. 



Sulphur, flowers of, 236. 



Sulphur, forms of, 234. 



Sulphur, occurrence in animals, 577. 



Sulphur, occurrence of, 233. 



Sulphur, properties of, 237. 



Sulphuretted hydrogen, 248. 



Sulphuretted oils, 525. 



Sulphuric acid, manufacture of, 242. 



Sulphuric acid, properties of, 244. 



Sulphuric acid, remedy for burns by, 



246. 



Sulphuric acid, uses of, 247. 

 Sulphuric anhydride, 241. 

 Sulphurous anhydride, bleaching by, 



240. 



Sulphurous anhydride, nature of, 238. 

 Sulphurous anhydride, preparation of, 



239. 



Sun, agency of the, 14, 129. 

 Sun-bleaching explained, 196. 

 Symbols, chemical, 4, 28. 

 Symbols explained, 30. 

 Sympathetic ink, 349. 

 Synthesis, 16. 



T. 



Table of atomicity, p. 48. 



Table of classification of the metals 



based on atomicity, p. 205. 

 Table of elementary bodies, their 



symbols and atomic weights, p. 13. 



