INDEX. 



471 



Nixon's (J.) theory of the telescopic 

 level, 423. 



North polar distances of stars observed 

 at Greenwich, on the reduction of, 

 335. 



Nyl-ghau, 366. 



Decollations, lunar, 156, 238, 318. 



Odour exhaled by certain organic re- 

 mains in the diluvium of the Arctic 

 Circle, 411. 



Ontario, Lake, tidelike wave of, 117. 



Orang utan, on the anatomy of, 55,225. 



Orchideee, on Mr. Lindley's statement 

 respecting, 403. 



Organic life, development of, S3. 



Ortyx, on the genus, 54. 



Owen (Mr.) on the anatomy of the 

 orang utan, 55, 60, 225 ; on the 

 dissection of a beaver, 142 ; on the 

 anatomy of the suricate, 367, 452. 



Oxalic acid, volatility of, 161. 



Oxamide, M. Dumas on, 67. 



Palm-tree, account of a curious, 46. 



Para-Tartaric acid, 149. 



Parhelia seen at Bedford, 232. 



Patents, list of new, 75, 157. 



Persalts of iron and carbonates, reaction 

 of, 393. 



Phillips's (J.) "Illustrations of the 

 Geology of Yorkshire," review of, 

 342, 430 ; on the effects of the atmo- 

 sphere on buildings and rocks, 447. 



Phosphates of manganese and iron, 

 native, 67. 



Phosphorus inflamed by charcoal, 393. 



Planetary tables, of Weisse, errata in, 

 245. 



Plesiosaurus, discovery of in Ireland, 

 331. 



Polar distance, on the effect of a change 

 of on the reduction of a zenith di- 

 stance, 338. 



Potash from felspar, 66. 



Quails, genus analogous to in America, 

 54. 



Quartz, double refracting rays of, 382. 



Quantities, negative and imaginary, 37. 



Rainbows, lunar, 397. 



Refraction, on terrestrial, 139. 



Reviews of new books : " Sections and 

 Views illustrative of Geological Phae- 

 nomena," by Mr. De la Beche, 131 ; 

 " Six Maps of the Stars," 202 ; Phil- 

 lips's " Illustrations of the Geology of 

 Yorkshire," 342, 430. 



Road. materials, relative hardness of, 

 164, 317. 



Rock-basins, origin of, 101. 



Royal Institution of Great Britain, 380. 



Royal Society, 37, 133, 206, 354,441. 



Rumker (C.) on the formulae for clear- 

 ing the lunar distance, 168. 



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

 the Mer-de- Glace, 32. 



Scrope (G. P.) on the rippled markings 

 in the forest marble beds, 376. 



Sea, luminous appearance of, 144. 



Sedgwick (Prof.) on the lake moun- 

 tains of the North of England, 211 ; 

 Address as President to the Geological 

 Society, 27 1 ; remarks on the " Prin- 

 ciples of Geology," 303 ; on sections 

 of the carboniferous chain between 

 Penigent and Kirkby Stephen, 377. 



Sharpe(S.) on the tidelike wave of Lake 

 Ontario, 117; on the reduction to the 

 meridian, 270. 



Ships, on the errors in the course of 

 from local attraction, 443. 



Smith (Dr. A.) on the origin and hi- 

 story of the Bushmen, 119, 197, 339, 

 419. 



Smith (Wm.), presentation of the Wol- 

 laston medal to, 272. 



Societies, learned : Royal Society, 37, 

 133, 206, 354, 441 ; Linnacan Society, 

 46, 138, 210, 364, 461 ; Geological 

 Society, 47, 134, 21 1, 271, 376, 445 ; 

 Zoological Society, 52, 140, 222, 366, 

 449; Astronomical Society, 138,220, 

 361 ; Royal Institution of Great Bri- 

 tain, 380, 461 ; Cambridge Philoso- 

 phical Society, 382, 462. 



Solar system, stability of the, 99. 



Sound produced during the conduction 

 of heat, 461. 



Spoonbill, species of, 370. 



Springs, formation of, and their inten- 

 sity at various periods, 170. 



Squirrel, notes on the lesser American 

 Flying, 367. 



Stars, double, calculation of the orbits 

 of, 178, 405. 



Struve (Prof.) on the occultation of 

 stars observed at Dorpat, 362. 



Sturgeon's (W.) account of an Aurora 

 Borealis observed at Woolwich, 127. 



Sulfo-sinapisine, on, 390. 



Sun-dials of the ancients, 1 33. 



Suricate, anatomy of, 367, 452. 



Suspension Bridge, fall of, at Brough- 

 ton, 384. 



Swan River, geology of its vicinity, 

 379. 



Telescopes, on fluid refracting, 44. 



Telescopic level, theory of, 423. 



Testudo, dissection of a specimen of, 

 375. 



Tides on the coast of Great Britain, 

 333. 



Tides and winds, graphical register of, 

 359. 



Tirhoot, nitrous atmosphere of, 151. 



Transylvania, on the geology of, 134. 



