506 



INDEX. 



Brewster (Sir D-), examination of an arti- 

 ficial substance resembling shell, 201. 



Bridges, ol)lique, 74, 167. 



Bromine, jjreparation of, 499. 



Brooke (H. J.) on the crystallographical 

 identity of certain minerals, 170 ; on the 

 intersection of crystalline minerals, 278. 



Buckland (Dr.) on silicified trunks of trees 

 in the new red sandstone, 475 ; Bridge- 

 water Treatise, 410. 



Bussy (M.) on the preparation of iodine, 

 498 ; preparation of bromine, 499. 



C. J. on Fresnel's theory of double refrac- 

 tion, 24. 



Callan (Prof.), reply to Dr. Ritchie, 459. 



Cambridge Philosophical Society, 316, 485. 



Camphor, experiments on, 420. 



Carbonate of lime, its decomposition by 

 heat, 496. 



Carbonic acid, solid, degree of cold pro- 

 duced by, 158. 



Catalysis, a new force acting in the corabi- 

 ra'ions of organic compounds, 490. 



Charlesworth (Edw.) on the crag, and on 

 the relative age of tertiary deposits, 1. 



Chemistry, organic, researches in, 45, 116. 



Chloral, a new compound analogous to, 

 321. 



Chloride of calcium, compound of, with 

 pyroxylic spirit, 47. 



Chlorides, metallic, action of sulphuric 

 acid on, 157. 



Chlorine, its action on pyroxylic spirit, 49 ; 

 decolorizing combinations of, 155. 



Chloroform and cyanoform, on, 322. 



Claik (Dr.) on cyanide of potassium, 329. 



Clarke (E. M.) rt-piy to Mr. Saxton, 455. 



Clemson (T. G.) on a vein of bituminous 

 coal in the island of Cuba, 161. 



Coal, bituminous, of Cuba, 161. 



Cocoa-nut paim, crystallized sugar from the 

 juice of, 77. 



Cold, produced by solid carbonic acid, 158. 



Coiebrook (Lieut. Col.) on making cry- 

 stallized sugar from the juice of the co- 

 coa-nut pal in, 77. • 



Collimator, Amici's, 234. 



Coniferac, descriptions of two species of, 73. 



Connell (A.) on the action of voltaic elec- 

 tricity on iodic acid, 93. 



Cooper (P.) on molecular action, 355. 



Copley medals, awarded to Baron Berze- 

 lius and F. Kiernan, Esq., 212. 



Crystalline minerals, intersection of, 278. 



Crystalline reflexion, laws of, 42. 



Crystallized iron pyrites, artificial, 158. 



Crystals, artificial, on, 171 ; optical phe- 

 nomena of, 2 IS. 



Cuba, bituminous coal of, 161. 

 Cuckoo, notice of the, 305. 

 Cyanide of potassium, as produced in hot- 

 blast furnaces, 329. 

 Cyanoform and chloroform, on, 322. 

 De la Rue (W. ) on a voltaic battery charged 

 frttb Aoiutiou of sulphate of copper, 244. 



Devonshire, geology of, 388. 



Diastase, its action on starch, 247. 



Dioptric light, new, 176. 



Dispersion pi liiiht, theory of the, 221. 



Doebereiner (jVI.) method of obtaining 

 spongy platina, 154. 



Don ( Prof. ) on two species of Conifcrw^ 

 73. 



Dragon's blood tree of Socotra, 226. 



Dudley coal-field, on the, 313. 



Dumas (M.) on camphor, 420. 



E. W. B. on the silent flight of Musca t«»- 

 tnitoria, 327. 



Earth, porcelain, composition of, 348. 



Eclipse, solar, 180; remarkable phenome- 

 non that occurs in, 230. 



Electricity, 12,57, 60, 63, 65, 9.3. 130» 

 133, 154, 171, 172, 175, 193, 241, 244, 

 267, 276, 280, 281, 317, 320, 326, 357^ 

 358, 376, 425, 428, 433, 455. 



Electro-magnetic balance, 358. 



Electro-magnetic machines, 12,455. 



Enamel, art of painting in, 442. 



Entomology : — a new genus and unde- 

 scribed species of Araneidte, 100; volun-^ 

 tary sounds of insects, 327 ; new hyme- 

 nopterous insects, 440. 



Essex (Alfred) on the art of painting io 

 enamel, 442. 



Eye, symmetrizing power of the, 234, S70. 



Faraday ( Prof.) on the causes of the neu- 

 trality of iron in nitric acid, 175. 



Felis niarmorata, a new species, 481. 



Ferussac (Baron), notice of, 310. 



Fisher's (W. W.) account of a case of spin» 

 bifida, 316, 486. 



Forbes ( Prof.) on the physical development 

 of man, 197; on the ascent of moun. 

 tains, 261. 



Forster (Edward) on the Esula major 

 Germanica of Lobel, 71. 



Fox (C.) on the oblique arch, 167. 



Fox ( R. W.) results of his experiments on 

 the production of artificial crystals, 171. 



Fox of the Himalayan mountains, 304. 



FVesnels theory of double refraction, on, 

 24 ; law of reflexion, 43. 



Fungi, hymenium of, 492. 



G. on a property of the parabola, 32. 



Gay-Lussac (M.) on the decomposition of 

 carbonate of lime by heat, 496. 



Geological Society, 68, 136, 306, 388, 471. 



Geology : — on the crag and tertiary depo- 

 sits, 1 ; anchor found at Seaton, 10 ; Dr. 

 Boase on Mr. Hopkins's researches in 

 physical geology, 14 ; geology of Asia 

 Minor, 68 ; on changes in the level of sea 

 and land in W. of Scotland, 136; dis- 

 tribution of organic remains on the York- 

 shire coast, 137; on a vein of bitumi- 

 nous coal in Cuba, 161 ; on the Coal- 

 brook Dale coal-field, 311 j composition 

 of porcelain earth, 348 ; on the carboni- 

 ferous series of New York and Pennsyl- 

 vania, 365; Mr. Ly-eU's address at the an- 



