5 8o 



SUBJECT INDEX 



Sulphur dissolved by alkalis, 171 

 distilled in dry oxygen, 531 

 from pyrites, 162 

 in oil of vitriol, 163 

 liver of, 170 

 milk of, 171 

 native, 162 

 polymerisation of, 351 

 supposed to contain hydro- 

 gen, 265 

 Sulphurets, 172 

 Sulphuretted hydrogen, 171 

 an acid, 175 

 composition of, 171 

 decomposed by sparking, 



172 

 Sulphuric acid, action on alcohol, 



154 



and sulphates, 163 

 composition of, 168, 169, 



375. 37 6 



displaced by nitric acid, 498 

 displaced by phosphoric 



acid and by silica, 509 

 structure of, 439 

 anhydride, 169, 250 

 ether, 402 

 Sulphurous acid, and sulphites, 



164 



structure of, 430 

 anhydride, 250 



composition of, 

 Sulphuryl chloride, 439 

 Supporters of combustion, 451 

 Sylvine, 20 

 Synthesis of organic compounds, 



399 

 Syrup of violets, 15 



Tables of affinity, 499 

 Tannin, formula of, 393 

 Tartar, 3 

 calcined, 3 

 vitriolated, 18 

 Tartaric acid, 13 



composition of, 391 

 formula of, 393 

 Theory of types, 411 



Tin, 7 



calcined, 26 



in air, over water or mer- 

 cury, 34 



in sealed flasks, 29, 35 

 Tinstone, 7 

 Topaz, 6 



" Tournesol " (see litmus), 15 

 Transition periods, 460 

 Triads, Dobereiner's, 452 

 Triatomic gases, 352 

 Trichloracetic acid, 411 

 Trimanganese, 478 

 Turpentine, 6 

 Types, mixed, 429 

 multiple, 427 

 simple inorganic, 421 



ammonia, 422 



hydrochloric acid, 425 



hydrogen, 425 



marsh gas, 437 



water, 424 

 theory of, 411 

 Typical elements, 460 



U 



Uranium, atomic weight of, 475 

 Urea, synthesis of, 399 

 Uric acid, 13 



V 



Valency, 355, 434 



fixed or variable, 441 



of carbon, 437, 438 



periodicity of, 468 

 Vapour densities, 340, 345, 



354 

 of ammonium and phos- 



phonium salts, 519 

 of compounds of iron, 362 

 of metallic elements and 



compounds, 360, 361 

 density of acetic acid, 

 of nitrogen peroxide, 525 

 of phosphorus penta- 



chloride, 

 of sulphur, 524 



