INDEX. 



551 



Quartz, Kilpatrick, 417. 



Radicals, organic, 179. 



Rammelsberg (M. C.), results of analysis 

 of boracite from Liineburg, 104; two 

 analyses ofgmelinite from Glenarm, 105. 



Reade (Dr. Joseph) on the permanent 

 soap-film and on thin plates, 32. 



Red particles of the mammiferous animals, 

 on the, 139. 



Refractions, astronomical, 467, 488 ; table 

 of mean, 501. 



Researches on the tides, note to the ele- 

 venth series of, 146. 



Resins, on the constitution of the, 147, 

 383. 



Richardson (W.) on the locality of the 

 Hyracotherium, 226. 



Rigg (R.) on Mr. Smith's experiments on 

 fermentation, 39. 



Rose (H.) on decrepitating salt of Wie- 

 liczka, 318. 



Ross (Capt. J. Clark), magnetical obser- 

 vations made on shore, and on board 

 H. M. S. the Erebus and Terror, 292. 



Royal Geological Society of Cornwall, 

 27th annual report of the council, 

 474. 



Royal Institution, proceedings of meet- 

 ings of the, 74. 



Royal Irish Academy, proceedings of the, 

 153. 



Royal Society, proceedings of the, 142, 

 292, 380. 



Rutile, on the form of, 268. 



Sabine (Major Edward), contributions to 

 terrestrial magnetism, 144. 



and Lieut-Col. 



Sykes, on the meteorological observa- 

 tions made at Alten, Finmarken, by 

 Mr. S. H. Thomas in 1837, 1838 and 

 1839, 295. 



and R. I. Murchi- 



son, general secretaries of the British 

 Association, address of the, at Glasgow, 

 441,482. 



Salsola tragus, analysis of the ashes of 

 the, 77. 



Salts used by Mr. R. Hunt as photogra- 

 phic agents, 206 ; colours produced by, 

 206, 207. 



Scanlan (M.), detection of iodate of potash 

 in iodide of potassium, 316. 



Schafhaeutl (C.)on the electricity of steam, 

 449. 



Scheerer (Theodore) on elaeolith and ne- 

 pheline, 105. 



and William Fran- 

 cis, on some combinations of arsenic 

 with cobalt, 331. 



Schoenbein (Prof.) on the odour accom- 

 panying electricity, 293. 



Schools: of civil and mining engineering 

 in the universities of Durham and Lon- 

 don, 390; of mines in Cornwall, 391. 



Scoriae, blue oxide of titanium in, 398. 



Sea, on the mean level of the, 321. 



Semi-axis major of the moon's orbit, on 

 the variation of the, 338. 



Shooting-stars of 1095 and 1243, on the, 

 143. 



Silica, on the solubility of, by steam, 299. 



Silver, solution of, on the use of, as a pho- 

 tographic agent, 207. 



Smee (Alfred) on the ferrosesquicyanuret 

 of potassium, 193, 381. 



Smith (J. D.), experiments on fermenta- 

 tion, observations on, 39 ; on the de- 

 tection and estimation of colophony 

 (common rosin), when dissolved in the 

 fixed oils, 289. 



Snow (R.), observations of the comet 

 made at Ashurst and Dulwich, 309 ; 

 catalogue of the Pleiades, 310 ; on the 

 variability of a Cassiopeia, 310. 



Soap-film, on the permanent, 32 ; experi- 

 ments on, 33 ; ascending and descend- 

 ing currents in a, 35. 



Societies, Learned: Geological, 66, 149, 

 226, 303, 387, 508 ; Royal, 142, 292, 

 380; Royal Irish Academy, 153; Cam- 

 bridge Philosophical, 154; Royal Astro- 

 nomical, 309 ; Geological Committee of 

 English Agricultural, 390; Polytechnic, 

 of Cornwall, 392 ; Royal Institution of 

 South Wales, 393; Royal Geological, of 

 Cornwall, 474. 



Solar spectrum, on the action of the dis- 

 severed rays of the, on dark photogra- 

 phic papers washed with an hydriodate 

 liquid, 265. 



Solar and terrestrial radiation made at 

 Montreal, observations on the, 78. 



Somerville (Mrs.), experiments upon the 

 magnetizing powers of the more re- 

 frangible solar rays, justification of, 153. 



South Wales, anthracite coal of, on the, 211. 



Spectrum, prismatic, on the theory of the 

 dark bands formed in the, 81; solar, 

 on the action of the dissevered rays of 

 the, on dark photographic papers wash- 

 ed with an hydriodate liquid, 265. 



Sphere, on the motion of a small, vibra- 

 ting in a resisting medium, 462. 



Spodumene and petalite, analysis of, 103. 



Sykes (Lieut.-Col.) and Major Sabine on 

 the meteorological observations made 

 at Alten, Finmarken, by Mr. S. H. 

 Thomas, in 1837, 1838 and 1839, 295. 



Sylvester (Prof.) on elimination, 379. 



Steam, on the solubility of silica by, 299 ; 

 electricity of a jet of, issuing from a 

 boiler, 370 ; electricity of high-pres- 



