40 



GENERAL INDEX OF VOLS. 1 12 OF THE 



insects, and its connexion with respi- 

 ration and circulation, xi. 189. 



Newton's rin8:s, on the phsenomena of, 

 i. 400; ii/20; x. 183 ; xii. 28, 485; 

 on coloured bands observed in ex- 

 amining, vii. 363, 474. 



Principia, inquiry relative to Dr. 



Pemberton's translation of, viii. 441 ; 

 theory of natural colours, on, viii. 

 468. 



Newton and Flamsteed, viii. 139, 211, 

 218, 225. 



(Sir I.) on the manuscript of, xi. 



138. 



Niagara, on the Falls of, v. 11. 



Nicholson (P.) remarks on his rule for 

 the construction of the oblique arch, 

 X. 167. 



Nickel, form of sulphuretof, vi. 104 ; se- 

 paration of zinc from, viii. 80. 



and cobalt incapable of being ren- 

 dered inactive, xi. 547. 



Nicol's (Mr.) polarizing eye-piece, on, 

 iv. 289. 



Nicol (W.), structure of Coniferae, vii. 

 490. 



Nicolaieff, on the mean temperature of, 

 i. 132. 



Nicotin, Prof. Davy, on, i. 393. 



Nidalia, a new genus of corals, vii. 331. 



Nile, plan for exploring the western 

 branch of the, xii. 543. 



Nimmo (A.), notice of, iv. 446. 



Nitrate of carbohydrogen, viii. 85. 



Nitre, its formation in extract of quassia, 

 xii. 140 ; new property of, xii. 145. 



Nitric acid, its action upon iron, ix. 53, 

 259 ; X. 133, 267, 276, 425 ; xii. 49 ; 

 on the causes of the neutrality of iron 

 in, X. 172 ; its action on certain metals, 

 xi. 554 ; its action on bismuth, xii. 

 305. 



Nitro-benzide and sulpho-benzide, vii. 

 257. 



Nitrogen, iodide of, viii. 12. 



Nitrosulphuric acid, x. 489. 



Nixon (J.) on the measurement of the 

 instrumental error of his horizon- 

 sector, i. 98; ii. 327; on a repeating 

 circle, i. 340 ; on the trigonometrical 

 height of Ingleborough, iv. 163; vi. 

 248, 429 ; on the tides in the Bay of 

 Morecambe, v. 264 ; verification of 

 Capt. Lloyd's levelling instrument, vii. 

 364 ; table of observed terrestrial re- 

 fractions, viii. 479 ; heights of Whern- 

 side, Great Whernside, Rumbles Moor, 

 Pendle Hill, and Boulsworth, ix. 96. 



Noad (H. M.) on the peculiar voltaic 

 condition of iron, x. 276 ; of iron and 

 bismuth, xii. 48 ; on the hydrates of 

 barvta and strontia, xi. 301. 



Nobili (M.) notice of tlie life and con- 

 tributions to science of, ix. 234. 



Nordenskiold on Phenakite, v. 102. 



Norfolk, geology of, vii. 171, 274, 353, 

 370, 463. 



Normandy, geological character of the 

 coast of, xi. 210. 



North magnetic pole, Commander Ross 

 on the position of, iv. 222. 



North-west passage, discovery of the, xii. 

 542. 



Notation, on chemical, ii. 309. 



symbolic, as appUed to mineralogy, 



viii. 101. 



Nycteribia, the genus, vi. 392. 



Numbers, theory of, new demonstration 

 of an original proposition in, xi. 456. 



Nux vomica, new acid in, iv. 153. 



OBJECT-GLASS, double achromatic, 

 vii. 161. 



Object-glasses, on a new species of co- 

 loured fringes in, i. 19. 



Observatory, magnetical, at DubUn, xii. 

 119. 



Occultations, lunar, i. 87, 167, 247, 327, 

 405, 473. 



Ocean, method of ascertaining the depth 

 of, iii. 82; ix. 185; remarks on, iii. 

 352 ; on the phosphorescence of the, 

 xii. 211. 



Oceans, Pacific and Indian, areas of ele- 

 vation and subsidence in the, xi. 307. 



Octopus, nondescript species of, ix. 

 301. 



Odynerus quadratus and 0. bidens, ha- 

 bits of, xii. 1 7. 



(Enanthic acid, x. 417, 422. 



(Enanthic aether, x. 418. 



Ogilby (W.) on the Cynictis, iii. 67 ; on 

 several Marsupialia, ix. 70 ; on the op- 

 posable power of the thumb in certain 

 mammals, and on the natural affinities 

 which subsist between the Bimana, 

 Quadrumana and Pedimana, ix. 302 ; 

 on the Chironectes Yapock, ix. 510; 

 on some hollow-horned Ruminants, xi. 

 124 ; arrangements of the Ruminantia, 

 xi. 469 ; on the quadrupeds of Austra- 

 lia, xii. 95. 



Oil of bitter almonds, composition of, iii. 

 389 ; iv. 70 ; of cinnamon, vii. 74 ; of 

 turpentine, hydrate of, vii, 537 ; on the 

 phainomena of drops of, floating on 

 water, viii. 288; volatile, ix. 155; of 

 caoutchouc, ix. 321, 479 ; aethereal, of 

 wine, X. 417; oil which accompanies 

 pyroxvlic Sf>irit, x. 48 ; empyreumatic, 

 xii. 101. 



Oils, action of sulphuric acid on, ix. 153. 



Ol'oers (Dr.) on the return of Halley's 

 comet, vi. 45 ; method of determining 



