Index, 



479 



Pj^out, Dr. remarks on the observations of 

 Messrs. Leiiret and' Lassaigne, and 

 Professors Tiedeman and Gmelin, 405. 



Pump, air, without artificial valves, 153. 



Q. 



Quadruped, American, new species of, 



R. 



Radiant heat, on its passage through glass 

 screens, 61. 



Rainbow, remarkable, 469. 



Rattle snakes, taming of, 156. 



Ritchie, Mr. remarks on his experiments 

 on radiant heat, 13 — remarks on the 

 Rev. Mr. Powell's paper on radiant 

 heat, 122— on an air-pump without ar- 

 tificial valves, 153. 



Robinet, M. on purifying crystals, 460. 



Rotation, on magnetism produced by, 27, 

 106, 183, 246. 



Society, Royal, Geological of Cornwall, 

 report of, 457. 



Wernerian, proceedings of, 147. 



Soda, bicarbonate of, its reaction on sul- 

 phate of magnesia, 403. 



Soda, sulphate of, on the use of, in glass 



. making, 148. , 



■ anhydrous, 401. , . 



Solar spectrum, on the light and heat of, 

 234. 



Sound, transmission of, 470. 



Spectrum, solar, on the light and heat of, 

 234. 



Station lights, on, 74. 



Steel dies, on the hardening of, 154. 



Stephens, Mr. suggestions for the improve- 

 ment of the British system of chemical 

 education, 369. 



Stereotype printing, improved method of, 

 152. 



Strata, freshwater, on, 68. 



Sturgeon, Mr. account of an improved 

 electro-magnetic apparatus, 357. 



Substance, peculiar, contained in sea 

 water, 381. 



Sulpho-napthalic acid, analysis of, 215. 



Sulphur, bromuret of, 421. 



Sulphur, crystallization of, 148. 



fluid, at common temperatures, 



390. 



Sulphuric acid and napthaline, on their 



mutual action, 201. 

 Survey of the heavens, plan for making a 

 minute one, 124. 



S. 



Salamander, new species of, inhabiting 



Pennsylvania, 315. 

 Salt, common, on the use of, in glass 



making, 148. 

 Sea water, peculiar substance contained in, 



381. 

 Serpents, of Southern Africa, on the, 



237. 

 Silver, bromuret of, 415. 

 Silver, cyanate of, decomposition of, by 



sulphuretted hydrogen, 461. 

 Society, Astronomical, proceedings of, 141, 



230. 

 — notice of the papers 



contained in the memoirs of, 453. 



Greological, proceedings of, 67, 



145. 



Linnean, proceedings of, 143, 457 . 



Medico-Botanical, proceedings of, 



147,387. 



Royal, analysis of Transactions 



of, 52, 136, 226. 

 proceedings of, 61, 457. 



Table, meteorological, 78, 79, 159, 240, 



318,319,396. 

 Temperature, law of, on the, 366. 

 Thenardite, a new mineral salt, 313. 

 Thomson, Dr. on anhydrous sulphate of 



soda, 401. 

 Tin, deutobromuret of, 414. 

 Transit instrument, small, on the, 230, 

 Tungstate of lead, on the, 364. 

 Turner, Dr. on the detection of arsenic, 



391. 

 Tymp cinder, analysis of, 463. 



Vaporization, on a limit to, 436. 

 Vapour in atmospheric air, method of de- 

 termining the quanityof, 97. 



