Index. 



479 



Plumbago, separation of, from cast-iron, 

 75. 



Potash, ceruleo-sulphate of, properties of, 

 90. 



■ and magnesia, sulphate of, exists 

 in sea-water, 266. 



and soda, tartrate of, crystalline 



form of, 45 1 . 



■ ■ " chlorate of, crystalline form of, 



451. 



Prideaux, Mr. on the existence of metallic 

 veins in the transition limestone of Ply- 

 mouth, 310. 



Prout, Dr. on the changes which take 

 place in the fixed principles of the egg 

 during incubation, 101. 



Pyrennees, geology of, 8. 



Pyroxene from Pargas, analysis of, 226. 



with lime and peroxide of man- 

 ganese as bases, 259. 



R. 



Reaumur, remarks on his experiments on 



the congelation of the metals, 343. 

 Remains, organic, of the alpine limestone, 



211. 

 Ricardo, M. Esq. on the advantages of oil 



gas establishments, 218. 

 Rocks from Van Dieman's land, account 



of some specimens of, 34 1 . 

 Rose, M. on the chemical composition of 



those minerals which possess the same 



form as pyroxene, 223, 259. 

 Rothetodtliegende, characteristics of, 210. 



■ remarks on, 289. 



Royal Society, proceedings of, 62, 149, 



231,300,391, 461. 

 Russia, coal of, 149. 



. lias of, 289. 



— — saliferous series of, 217. 



Sahlite, green, analysis of, 227. 

 Saliferous series, rocks included in it, 210. 

 Salt, bay, examination of, 26.. 

 Sandstone, Pontefract rock of, on, 270. 

 Saxony, district of, coal and porphyry of, 



147. 

 Scandinavia, geology of, 4. 

 Schlotheim, Baron von, account of fossil 



bones, 17. 

 Scotland, geology of, 5. 

 Scudamore, Dr. on the evolution of heat 



during the congelation of the blood, 302. 

 Sea- water, on the saline contents of, 261. 

 Sel de gabelle, examination of, 262. 

 Series, saliferous, rocks included in it, 2 10. 

 Shell of the egg, analysis of, 1 05. 

 Sikbian, Upper porphyry and coal district, 



148. 



Silicate, red, of manganese, analysis of, 

 259. 



Silver and steel, alloy of, 201. 



Smithson, J. Esq. on the crystalline form 

 of ice, 340 — on the means of distin- 

 guishing between the sulphates of ba- 

 rium and strontium, 359 — on the dis- 

 covery of acids in mineral substances', 

 384. 



Society, astronomical, proceedings of, 308, 

 395. 



— — Geological, proceedings of, 70, 

 153,395, 4<>9. 



■ Royal, of Cornwall, 



proceedings of, 7 1 . 



■ Linnean, proceedings of, 69, 153, 

 305, 469. 



■ Royal, proceedings of, 62, 149, 

 231, 300,391,461. 



Soda, nitrate of, crystalline form of, 459. 



Sowerby, Mr. notice of the re-opening of 

 his museum, 309. 



Steel, on the alloys of, 199. 



Stockton, Mr. J. meteorological table 

 kept by, 191. 



Stodart and Faraday, MM. on the alloys 

 of steel, 199. 



Stokes, Mr. on clay-slate for road-making, 

 410. 



Strangways, Hon. W. T. H. on the geo- 

 logy of Hungary, 1 53. 



Sulphate of iron and ammonia, description 

 of a salt composed of, 406. 



alumina, native, ana- 

 lysis of, 446. 



strontium and barium, on 



the means of distinguishing between, 

 359. 

 Sulphuric acid, its action on indigo, 88. 



Table, meteorological, kept at Bushey 

 Heath, 112. 



Stratford, 



79, 159,239,319,399,473. 



Tartrate of potash and soda, crystalline 

 form of, 451. 



Temperature, action of, in chemical at- 

 traction, 257. 



■ of mines, on the, St. 



■ produced by the condensa- 

 tion of vapour, on the, 74. 



Tempering, heat proper to be employed 

 in alloys of steel, 269. 



Thermometer, alkohometrical application 

 of, 313. 



Thuringerwalde, coal and porphyry of, 

 147. 



Titanium, metallic, properties of, 67. 



Tour, M. de la, account of results obtain- 

 ed by the action of heat, and compres- 

 sion of certain fluids, 290. 



