12 



GENERAL INDEX OF VOLS. 1 V2 OF THE 



Ol 



sels of the eye, iv. 115; award of the 

 royal medal to, iv. 133 ; on the influ- 

 ence of successive impulses of light on 

 the retina, iv. 241 ; on a rhombohe- 

 dral crystallization of ice, iv. 245; on 

 accidental colours, iv. 853 ; notice of 

 the optical properties of a new mi- 

 neral, vi. 133; on the achromatism of 

 the eye, vi. 161 ; Prof. Powell in reply 

 to, vi. 247 ; on peculiarities in the 

 double refraction and absorption of 

 light, exhibited in the oxalate of chro- 

 mium and potash, vi. 305; vii. 436 ; on 

 the structure and origin of the dia- 

 mond, vii. 245 ; on the crystalline 

 lenses of animals, viii. 195, 416; on the 

 lines of the solarspectrum,andon those 

 produced by the earth's atmosphere, 

 and by the action of nitrous acid gas, 

 viii. 384 ; on the colours of natural bo- 

 dies, viii. 468 ; on the optical property 

 of a substance resembling shell, viii. 

 545; examination of, x. 201; on the 

 optical properties of chabasie, ix. 1 70 ; 

 X. 201 ; on the connection between the 

 phaenomena of the absorption of light 

 and the colours of thin plates, xi. 95 ; 

 on the crystalline lenses of animals af- 

 ter death, xi. 97 ; on a singular deve- 

 lopment of polarization in the crystal- 

 line lens after death, and on cataract, 

 xii. 22; on Von Wrede's theory of the 

 absorption of light, xii. 115; on an op- 

 tical phaenomenon seen in the Gram- 

 pians, and on Poisson's theory of the 

 atmosphere, xii. 123; on the colours 

 of mixed plates, xii. 355. 



Bridges, skew, construction of, viii. 299 ; 

 oblique, x. 74, 167. 



Brinkley (Dr.), notice of, viii. 155. 



British almanac, on defects in the, ii. 

 30. 



British Association, ii. 319 ; Reports of 

 of the meetings of, ii. 455; iii. 151 ; iv. 

 319; xii. I 10; proceedings at Edin- 

 burgh, V. 386 ; suggestions respecting 

 the ensuing meeting, vii. 118; Dublin 

 meeting, vii. 71, 237, 289, 385, 480; 

 viii. 53; ix, 228, 312; list of the Coun- 

 cil appointed at Bristol, ix. 312; re- 

 ports undertaken for the next meeting, 

 ix. 312; grants for the advancement 

 of particular branches of science, ix. 

 312; meeting at Liverpool, xi. 396, 

 474,551. 



Broderip (W. J.), descriptions of new 

 species of Calyptraeidae, v. 72, 232 ; de- 

 scription of a new genus of Gastero- 

 poda, V. 312; on Clavagella, vi. 381 ; 

 on the habits of the Chimpanzee of the 

 Zoological Gardens, viii. 164; on the . 

 genus Mitra, Lam., ix. 136. ^ > 



Bromhead (Sir E. F.) on the present 

 state of botanical classification, xi. 48 ; 

 remarks on his paper on botanical 

 classification, xi. 137 ; on the origin of 

 the botanical alliances, xi. 247. 



Bromine, proportion of, in the waters of 

 different seas, vi. 321 ; on its conduct- 

 ing power for electricity, viii. 130,400; 

 new acid of, viii. 588 ; preparation 

 of, X. 499 ; its action upon^ «eth^ ix. 

 149. ... . . . ■ rn ..v/'f ::vud}wt 



Bromo-cyanlde of potassium and m6if- 

 cury, xi. 340. 



Brooke (H. J.), mineralogical notices on 

 symbolic notation, viii. 101 ; on thulite 

 and stromite, viii. 169; on the crystal- 

 lographical identity of certain mine- 

 rals, X. 170; on the intersection of cry- 

 stalline minerals, x. 278 ; on the iden- 

 tity of phacolite and levyne with cha- 

 basie, xi. 12 ; on murio-carbonate and 

 muriate of lead, xi. 175; on the cry- 

 stalline form of pyrosmalite, xi. 261 ; 

 on an apparent case of isomorphous 

 substitution, xii. 406. ' 



Broughton (J. D.), notice of, xii. 278. 



Brown (R.) on the impregnation of the 

 Orchideae and Asclepiadese, i. 70; on 

 the structure, &c. of Cephalotus, i. 3 1 4 ; 

 on the new genus Limnanthes, iii. 70; 

 on the female flower and fruit of Raf- 

 flesia, v. 70. 



Bruit de Soufflet, mechanism of, vii. 508. 



Bryce (J;) list of the simple minerals of 

 the North of Ireland, iii. 83; v, 196. 



Buckland (Rev. Dr.) on the structure of 

 the sloth, ii. 308 ; notice of a newly 

 discovered gigantic reptile, vii. 327 ; 

 on the fossil beaks of four extinct spe- 

 cies of Chimsera, viii. 4 ; on silicified 

 trunks of trees in the new red sand- 

 stone, x. 475; " Bridgewater Treatise," 

 X. 410; on the keuper sandstone in 

 the upper region of the new red sand- 

 stone formation, xi. 106. .l-'^> 



Bud, structure of the, ii. 125.> nohrruiD 



Buenos Ayres, on the discovery of three 

 skeletons of the Megatherium in the 

 province of, i. 233. 



Bulbs, on the structure of, ii. 124. 



Bulletin, bibliographical, xi. 481, 548. 



Bunt (T.G.) on anew tide-gauge, xii.430, 



Burnes (Lieut.) on the geology of the 

 Indus, iv. 225. 



Burning cliffs, on the south-cast coast 

 of Newcastle in Australia, i. 92. - 



Burr ( F.), geology of the line of the Bir- 

 mingham and Gloucester railway, xii. 



Bussy (M.) onthepreparatioilidf iodiner, 



X. 498; preparation of bromine, x. 499. 



Butler's ( Dr.) theory of the action of the 



