40 



GENERAL INDEX TO THE ELEVEN VOLUMES OF 



Robinson (Dr.) on the longitude of the 



Armagh Observatory, vii. 225. 

 Robotham's (J.) geometrical problem, 



iii. 234. 

 Rock-basins, origin and formation of, 



Mr. Brayleyon the, viii. 331. 

 , origin of, Rev. T. Moore on, ix. 



101. 

 Rock-salt in "saliferous rock" of North 



America, vi. 71. 

 ■ , salts of potash in, Mr. Brayley on, 



v. 411. 

 , various geological positions of, 



viii. 103. 

 Rocks, European, classification of, vi. 



440; vii. 189. 

 , saliferous, in the State of New 



York, vi. 71; vii. 198. 

 , of North America, equivalent 



formations of in England, vi. 75. 



, secondary stratified, vi. 213. 



Roget (Dr.) on an apparent violation of 



the law of continuity, iii. 118, 203. 

 , reply to Mr. Babbage, viii. 73 ; 



Mr. Babbage's notes on, viii. 153. 

 Roscoe (W.) on artificial and natural 



arrangements of plants, vii. 15, 97, 



180. 

 Rose (M.) on the action of sulphuretted 



hydrogen gas on solutions of mercury, 



v. 310, 393. 

 Rosenberger (Mons. O. A.) on the ele- 

 ments of Halley's comet, xi. 32. 

 Rothe todte liegende, English equivalent 



to, viii. 342. 

 Rouchas (M.) on red colouring-matter 



produced by the action of nitric acid 



upon alcohol, x. 313. 

 Royal Academy of Sciences of Paris ; 



' Astronomical Society ; 



Geological Society of Cornwall; 



Institution ; 



Society ; 



of Edinburgh ; See Socie- 

 ties. 

 Rudberg (M.) on the dispersion of light, 



ii. 401. 

 Rumball (J. R.) on the focus of vision, 



ii. 376. 

 Rumker's (C.) corrected elements of the 



comet in Pegasus, with M. Valtz's 



elements of the same comet, vii. 446 ; 



viii. 50. 

 observations on a comet, made at 



Paramatta, i. 315. 

 on the formulae for clearing the lu- 

 nar distance, ix. 168. 



Rumker's (C.) voyage from New South 

 Wales to England, viii. 459. 



Russian coinage of platina, iv. 458. 



Sabine (Capt.), notices on a publication 

 by Mr. Babbage, viii. 44. 



on the dip of the magnetic needle, 



v. 302. 



on the lengths of the seconds pen- 

 dulum, v. 302 ; x. 294; corrections of, 

 ii. 143. 



pendulum observations, Mr. Hen- 

 derson's remarks on, ii. 124; his re- 

 ply to, ii. 176. 



Saint-Hilaire and Cuvier on the unity 

 of organization in animals, vii. 379. 



Salicine, MM. Pelouze and J. Gay-Lus- 

 sac on, viii. 303. 



Saline solutions, on the influence of the 

 air in the crystallization of, iv. 215. 



Salivary concretion, analysis of, iii. 

 146. 



Saliva, sulphocyanuret of potassium in, 

 ii. 315. 



Salt, new, of perchloride of mercury, vii. 

 129, 317. 



, , obtained from opium, ii. 231. 



Salts, cupreous, effect of ebullition on, 

 iv. 232. 



more soluble in hot than in cold 



water : exceptions to this law, ii. 20. 



of mercury, analysis of, R. Phillips 



on the, x. 205. 



Sand, flowing of, underpressure, viii. 68. 



Sandstone, new red, Mr. Brayley on the 

 formation of the, vi. 71. 



Sandstone, new red of Durham, viii. 

 348,411. 



Sang (Edw.) on the product of two mo- 

 nome functions, vi. 262. 



Sanguinaria, new vegetable alkali, v. 

 151. 



Sarcolite and aeschenite, on the charac- 

 ters of, as distinct from analcime and 

 gmelinite, H. J. Brooke on, x. 187. 



Sargasso weeds, viii. 459. 



Saturn and its ring, inequality of the 

 dark space between, iv. 73. 



, ring of, viii. 456. 



Saull's (Mr.) Geological Museum, x. 

 237. 



Saurian reptiles, synopsis of the genera 

 of, ii. 54, 207. 



Saussure's (M.) ladder, discovery of, in 

 the Mer-de- Glace, ix. 32. 



Scarlatina, disinfecting powers of heat 

 in, xi. 22. 



Schist, bituminous of Seefeld, vi. 36. 



