INDEX. 



539 



Bunsen (Prof.) on the measurement 



of the chemical action of light, 521. 



Calcium, on the electric conducting 



power of, 86. 

 Caldwell (M.) on gaVdic acid, 185. 

 Cambridge Philosophical Society, 

 proceedings of the, 215. 



Carbonates of the earths and metals, 

 on the artificial formation of the 

 hydrated, 3S8. 



Carius (M.) on the absorption of 

 various gases in alcohol, 1 19. 



Carpenter (W. B.) on the Foramini- 

 fera, 384. 



Catalytic phaenomena, on the con- 

 nexion of, with allotropy, 248, 440. 



Cayley (A.) on the porism of the in- 

 and-circumscribed triangle, 19 ; on 

 caustics, 75 ; on the theory of the 

 analytical forms called trees, 172; 

 on a problem in the partition of 

 numbers, 245 ; on the summation 

 of a certain factorial expression, 

 419; on a theorem relating to 

 the rectangular hyperbola, 423 ; 

 analytical solution of the problem 

 of tactions, 507. 



Challis (Rev. J.) on the problem of 

 three bodies, 133. 



Chemical notices from foreign jour- 

 nals, 118, 183,269,497. 



Chowne (Dr. W. D.) on the velocities 

 of currents of air in vertical tubes, 

 291. 



Chromium and ammonia, on certain 

 double compounds of, 191. 



Church (A. H.) on parabenzole, 415. 



Cinnamic acid, on the artificial pro- 

 duction of, 183. 



Clarke (Rev. W.B.) on the occurrence 

 of volcanic bombs in Australasia, 

 147. 



Claudet (A.) on various phenomena 

 of refraction through semi-lenses 

 or prisms, producing anomalies in 

 the illusion of stereoscopic images, 



/I- 



Cleghorn (J.) on the formation of 

 rock-basins, 213. 



Coan (Rev. T.) on volcanic eruptions 

 in Hawaii, 146. 



Cockle (J.) on the theory of equa- 

 tions of the fifth degree, 355. 



Colour-blindness, observations on, 

 282. 



Comets, on the density and the mass 



of, 301 ; on the absorption of light 



in traversing, 471. 

 Copper-mines of Namaqualand, ac- 

 count of the, 214. 

 Corenwinder (M.) on the production 



of carbonic acid in the soil, 502. 

 Crustaceans, on some fossil, 213, 465. 

 Cryolite, on the preparation of arti- 

 ficial, 272. 

 Crystal, on the anharmonic ratio of 

 radii normal to four faces of a, 96. 

 Crystalline compounds formed by 

 slow actions, observations on, 300. 

 Crystallography, on the application of 



elementary geometi-y to, 345. 

 Cyanometer, on a new, 389. 

 Damour (A.) on the artificial forma- 

 tion of the hydi-ated carbonates of 

 the earths and metals, 388 ; on the 

 examination and analysis of eudi- 

 alite and eukolite, 391. 

 Davoust (M.) on a new barometer, 



468. 

 Day (A.) on the theory of parallels, 



156. 

 Debus (Dr. H.) on the action of nitric 

 acid on alcohol at common tempe- 

 ratures, 39, 66; on the action of 

 nitric acid on glycerine, 537. 

 De la Rue (W.) on the chemical ex- 

 amination of Burmese naphtha,513. 

 Deville (St. -Claire) on the produc- 

 tion of high temperatures, 124 ; on 

 the various forms of silicon, 269 ; 

 on the preparation of artificial cry- 

 olite, 272 ; on boron, 273. 

 Diamond (H. W.) on some applica- 

 tions of photography, 133. 

 Dichobune ovina, 385. 

 Dichodon cuspidatus, 209. 

 Diffraction spectrum, on the, 153. 

 Donaldson (Dr.) on the structure of 



the Athenian trireme, 216. 

 Drajjcr (Prof. J. W.) on the diffrac- 

 tion spectrum, 153. 

 Earth, on the figure, dimensions, and 

 mean s|)ccific gravity of the, 129; 

 on the mean density of the, 527 ; 

 on the stability of loose, 292 ; on 

 the electrical effects produced by 

 the contact of, with water, 297. 

 Earthquake, on the occurrence of an, 



at Rhodes, 146. 

 Egerton (Sir P. G.) on fish-remains 

 from the neighbourhood of Ludlow, 

 386. 



• 202 



