SUBJECT INDEX 



57i 



Cyanogen gas, 245 

 radical, 245, 399 



Density of carbonic oxide, 139 

 of gases, 340, 345 

 of hydrogen, 129, 481 

 of nitrogen, nitric oxide, and 



oxygen, 337 

 of oxygen, 128 



Dephlogisticated air, 40 

 marine acid (chlorine), 212 



Diamond, 5 



allotropy of, 101 

 combustion of, 99 



Diatomic gases, 352 

 radicals, 433 



Didymium, 303 



Diminished nitrous air (nitrous 

 oxide), 77 



Dimorphism, 381 



Dissociation, 514 

 of acetic acid, 523 

 of aluminium chloride, 361, 



380 



of ammonia, 517 

 of ammonium chloride, 521 

 of calomel, influence of moist- 

 ure on, 529 



of carbonic anhydride, 516 

 of dry nitrous anhydride, 530 

 of ferric chloride, 361, 380 

 of ferrous chloride, 361, 380 

 of hydriodic acid, 239 

 of nitrogen peroxide, 525 

 of sal-ammoniac, influence of 



moisture on, 528 

 of stannous chloride, 361, 380 

 of water, 515, 535 



Dissolution, 301 



Dualistic theory, 394 



Dulong and Petit's Law of 

 Atomic Heats, 362 



Dutch Liquid, 155 



Earths prepared from salts, 57 

 Ekaaluminium, 476 



Ekaboron, 476 

 Ekamanganese, 478 

 Ekasilicon, 476 

 Elastic fluids, 71 

 Electric battery, 272, 273 



in dissolution of metals, 534 

 current, 271 



decomposes alkaline earths, 



287 



ammonia, 265 

 potash, 273 

 salts, 273 

 soda, 278 

 water, 272 



Electro-chemical theory, 397 

 Electrolysis, chemical change as 



reversed, 534 

 Elements, 112 



and compounds, 221 

 Boyle's views on, 448 

 classification of (Davy), 450; 

 (Dumas), 452 ; (Lavoisier), 

 449 ; (Mendeleeff), 457, 465 ; 

 (Newlands), 455 

 four, of Aristotle, 162, 448 

 molecular complexity of, 338, 



352 



weights of, 352 

 symbols for, 295, 296 

 Elixir of life, 2 

 Emerald, 6 

 Empirical formulae, 373 



of salts, 374 

 Epsom salts, 59, 19 

 Equivalent of chlorine, 316 

 of potassium, 316 

 of silver, 316 

 Equivalents, 310, 311, 312, 313; 



314, 315 



and atomic weights, 314 

 determined by Stas, 315 

 of acids and bases, 311 

 relations between, 454 

 table of, 313 



Ethane, 431 



Ether, acetic, 402 

 analysis of, 387, 388 

 chlorination of, 410 

 hydrochloric, 402 

 preparation of, 387 



