INDEX. 



567 



tion of the Different Branches of 

 Human Knowledge, 4/3. 



Richardson (T.), notices in analytical 

 chemistry, 2 ; analysis of colopho- 

 nite, 86. 



Rigaud (Prof.), notice of, 524. 



Rigg (J. H.) on a corollary deduced 

 by Prof. J. Thomson, 285. 



Rigg (R.) on the influence of nitrogen 

 in promoting vegetable decomposi- 

 tion, 313; on the chemical consti- 

 tution of bodies which undergo vi- 

 nous fermentation, 314 ; on the 

 formation of alkaline and earthy 

 bodies by chemical action, 329. 



Rocks, stratified, of North Devon, 109. 



Roemer (Herr.) on the Wealden of 

 the North of Germany, 401. 



Rose (H.) on sulphate of chloride of 

 sulphur, 483 ; on the formation of 

 sulphuric acid, 552 ; on sulphuret- 

 ted hydrogen, 553 ; on the white- 

 ness of precipitated sulphur, 554. 



Royal Academy of Sciences of Paris, 

 Dr. Buckland elected one of the 

 corresponding members, 158. 



Royal Institution, proceedings of, 75. 



Royal Geological Society of Cornwall, 

 Annual Report, &c., 477. 



Royal Society, proceedings of, 312 ; 

 Anniversary Address of the Presi- 

 dent, 517. 



Royal Society of Edinburgh, Prof. 

 Forbes on the intensity of reflected 

 light and heat, 479. 



Sand-pipes, tubular cavities filled with 

 gravel and sand in the chalk near 

 Norwich, 258, 455. 



Saunders (G.), notice of, 527. 



Suleah fish of Bengal, 547. 



Scales of butterflies' wings, on the 

 configuration of, 279. 



Schafhaeutl (Dr.) on the different 

 species of cast-iron, steel, and mal- 

 leable iron, 417. 



Schoenbein (Dr.) on some peculiar 

 voltaic arrangements, 136. 



Schouw, barometric observations of, 

 190. 



Schweitzer (Dr.), analysis of sea- 

 water, 51. 



Scientific expedition to the Antarctic 

 regions, instructions for the, 180. 



Sea, on the depth of the, 195 : trans- 

 parency of, 194. 



Sea-water of the English Channel, 

 analysis of, 51. 



Sedgwick (Rev. Prof.) on the older 



rocks of Devon and Cornwall, 401. 

 Sesquichloride of carbon, analysis of, 



2. 

 Silicon and iron, on the combinations 



of carbon with, 417. 

 Silurian and Cambrian Systems in 



Belgium, on the equivalents of, 146. 

 Sky, on the colours of the, 25. 

 Silver, purpurate of, 492. 

 Singer's electrometer, 219. 

 Smith (J.) on the climate of the newer 



pliocene tertiary period, 308. 

 Societies : — 



Cambridge Philosophical Society, 

 476. 



Geological Society, proceedings of, 

 396, 531. 



Italian Scientific Association ; pro- 

 ceedings of the Meeting at Pisa 

 in October 1839, 550. 



Linnsean Society, proceedings of, 70. 



Microscopical Society, 549. 



Royal Academy of Sciences of Paris, 

 158. 



Royal Geological Society of Corn- 

 wall, annual report of, 477. 



Royal Institution, proceedings of, 75. 



Royal Society, proceedings of, 312 ; 

 Anniversary Address of the Pre- 

 sident, 517. 



Royal Society of Edinburgh, Prof. 

 Forbes on the intensity of reflect- 

 ed light and heat, 479. 



Zoological Society, proceedings of, 

 544. 

 Soda, pyrophosphate of, 327. 

 Somerset, on the geology of, 396. 

 Sound, velocity of, 1. 

 Soundings, mode of taking, 195. 

 Spleen, structure and functions of the, 



329. 

 Stark (W.), observations on Mr. Lyell's 



paper on the sand-pipes in the chalk 



near Norwich, 455. 

 Stars, at present undiscoverable, 335 ; 



shooting, observations of, 372, 441 ; 



variable, instructions for observing, 



197. 

 Steel, on the different species of, 425. 

 Subsesquiacetateoflead, 155. 

 Sulphamethylane, 95. 

 Sulphate of methylene, 86. 

 Sulphuretted hydrogen, 553. 

 Sulphur, on sulphate of chloride of, 



483 ; on the whiteness of precipi- 

 tated, 554. 



