544 



I N D E X. 



Chichester, earthquakes at, 208. 



Chromium, oxalate of, and potash, opti- 

 cal properties of, 436. 



Cinnamon, oil of, 74. 



Circulating organs in diving animals, 

 502. 



Circulation of the blood, on the, 207. 



Clarke (E. M.) on certain effects of vol- 

 taic magnetism on iron, 422. 



Classification, principles of, 491. 



Coal-gas, phaenomena of flame from, 404. 



Coloured bands, obsei-ved in examining 

 Newton's rings, 363, 474. 



Comet, Halley's, 139, 236. 



Comets, catalogue of, 36 ; observed at 

 Paramatta, 69 ; Prof. Encke on 01- 

 bers's method of determining the or- 

 bits of, 7, 123, 203, 280. 



Coniferce, on the structure of, 496. 



Connell (A.), analysis of fossil scales,396. 



Cooper (P.) on the theory of sound, 211 ; 

 on the theory of the tides, 212. 



Coral, new genus of, 330 ; on a species 

 of, 409. 



Corrigan (Dr.) on the mechanism of 

 Bruit de Souffiet, 508. 



Corrosion of metalsby sea- water, on, 389. 



Crag formation, on the, 81, 353, 463, 

 464. 



Crustacea, on the metamorphoses of the, 

 210; fossil, 517. 



Crystalline form of Kupferbliithe, 159. 



Crystals, on the reflexion and refraction 

 at the surface of, 295. 



Cuming (Mr.), new species of shells, 

 153, 226, 227. 



Curtis (J.), descriptions of a new genus 

 of the family Melolonthidce, 224 ; on 

 a moth found in the galls ofa plant, 224. 



Cyanuret of mercury, its decomposition 

 by iron, 78. 



Dalmahoy (J.) on the greater calorific 

 effect of the sun's direct rays in high 

 than in low latitudes, 182. 



Daubeny (Prof.) on discoveries in vol- 

 canic strata, 316; on the volatiliza- 

 tion of magnesia by heat, 406 ; on 

 the action of light on plants, 496 ; ana- 

 lysis of a mineral spring near Oxford, 

 518; circular to men of science rela- 

 tive to mineral waters, 541 . 



Davy (Dr. J.), Prof. Faraday in reply 

 to, 337. 



Davy (Prof.), experiments to prevent 

 corrosion by sea-water, 389 ; on Ni- 

 cotin, 393. 



De la Beche (H. T.) on the trappean 

 rocks with the new red sandstone, 513. 



Denham (Capt.) on the survey of the 

 Mersey and the Dee, 487. 



Denmark, on the geology of, 412. 



Dew-point, 256, 266, 313, 409, 470. 



Diamond, structure and origin of, 215. 



Diathermal bodies, transmission of calo- 

 rific rays through, 475. 



Diopsis, new species of, 519. 



Divergence, the cause of motion in 

 plants, 357. 



Diving animals, on their circulating or- 

 gans, 502. 



Douay, Congres Scientifiques at, 237. 



Dublin meeting of the British Associa- 

 tion, 289, 385. 



Dumas (M.) on pyroxylic spirit and 

 methylene, 427. 



Dunn (A.) on the atmosphere of his 

 white-lead manufactory, 77. 



E. W. B. on the frequent deficiency of 

 the ungueal phalanx in the orang ou- 

 tang, 72 ; on the consolidation of the 

 new red sandstone, 515. 



Earthquakes at Chichester, 208. 



Echini, subdivision of, 328 ; mode of pre- 

 serving, 493. 



Egerton (Sir P. G.) on a stratum of re- 

 cent marine shells in Cheshire, 326 ; 

 on Ichthyosauri, 414 ; on the disco- 

 very of ichthyolites in N. Stafford- 

 shire, 517. 



Electricity : — Prof. Faraday's researches 

 in, 411 ; vindication of Prof. Fara- 

 day's discoveries, 421 ; electrical at- 

 traction, 304 ; electrical balance, 303, 

 304 ; prismatic decomposition of elec- 

 trical light, 299 ; electric currents 

 through platinum wire, 388. 



Electro-magnetism, 231 : on its appli- 

 cation to manufactures, 305, 306. 



Encke (Prof.) on Olbers's method of de- 

 termining the orbits of comets, 7, 123, 

 203, 280. 



Enharmonic organ, 366. 



Entomological Society, 420. 



Entomology : — a new genus of Mclolon- 

 thidte, 224 ; a species of moth found 

 in the galls of a plant, 224 ; hymeno- 

 pterous insects, 228 ; descriptions of 

 new species of Diopsis, 519. 



Entozoa of the human subject, on the, 

 506. 



Equations, of the fifth degree, 202 ; nu- 

 merical, 384 ; transformation of, 478. 



Faraday (Prof.), reply to Dr. Davy, 337 ; 

 researches in electricity, 41 1 ; M. Pog- 

 gendorff on his discoveries, 421. 



Farquharson (Rev. J.) on the ice fonned 

 at the bottom of running water, 137. 



Fishes, of the river Quorra, 64 ; of the 

 island of Rathlin, 492. 



Fitch (R.) on the coralline crag, 463. 



