I N D E X. 



571 



Darwin (C), on proofs of recent elevation 

 on the coast of Chili, 100 ; on the depo- 

 sits containing Mammalia in the neigh- 

 bourhood of the Plata, 206 ; on areas of 

 elevation and subsidence in the Pacific 

 and Indian oceans, 307. 

 Dau ( Dr. Lui«i) on the practicability of a 

 north-west Arctic passage, 194; on the 

 velocity of the wind, 194. 

 Demouville on the diurnal variation of 



the magnetic needle, 194. 

 Denmark, on some changes of level which 



have taken place in, 309. 

 Detection of foreign matters diffused in 



the atmosphere, on the, 56. 

 Devonshire, on the physical structure of, 

 311; on the subdivisions and geological 

 relations of its old stratified deposits, 

 315; Goniatites, 317. 

 Dew-point, on the deduction of the, from 

 the indications of the wet-bulb thermo- 

 meter, 54. 

 Diatomeae, doubtful nature of the, 389 ; 

 siliceous envelopes of the, 389 ; classifi- 

 cation of, 390 

 Diffusion, gaseous, 559. 

 Douglas ( Mr. ), observations on the western 



coast of North America, 91. 

 Dove (H. W.), outlines of a general theory 



of the winds, 227, 353. 

 Draper (Prof.) on gaseous diffusion, 559. 

 Dumas (M.) on carbovinate and potash, 



320. 

 Duraod (H. M.) on the fossil jaw of a 



gigantic quadrumanous animal, 33. 

 Dutrochet's experiments on the respiration 



of plants, 536. 

 Earthquake in Syria, on the, 204. 

 Earth's surface, on the probable effect of 

 the transfer of pressure from one part to 

 another of the, 212; letter from Sir J. 

 F. W. Herschel in explanation of, 214. 

 Eaubonne (M. d') on the conservation of 



living plants, 566. 

 Edwardsite, a new mineral, 402. 

 Egyptians, on the complexion of the, 344. 

 Electricity, on the conducting powers of 

 wires for, 192 ; researches into the cause 

 of voltaic, 274. 

 Electro-magnetic conducting powers of 



wires, 1. 

 Emetine, preparation of, 165. 

 Emmet (Prof.) on the preparation of 



formic acid, 399. 

 Emmett (Lieut. -Col.) on the carbonic 



acid in the atmosphere, 225. 

 Entomology : — on the temperature of in- 

 sects, 189; on the supposed production 

 of insects, 551. 

 Entozoa, in the stomach of the tiger, 1 28. 

 Equations, new method of solving, 239. 

 Erdman (M.) on the oxalhydric acid of 



M. Guerin, 142. 

 Euphorbiaceae and Asclepiadea?, milk ves- 

 sels of the, 520. 



4 



Europe, experiments made in, 254 ; on the 

 diurnal inequality wave on the coasts of, 

 195. 



Exley (T.) on Mossotti's theory of physic*, 

 496. 



Fairbairne (Mr.) on hot and cold blast 

 cast iron, 556. 



Falconer (Dr.) on a fossil monkey from 

 the tertiary strata of the Sewalik hills, 

 393. 



Farre (Dr.) on the structure of the higher 

 forms of Polypi, 189. 



Forbes ( Prof. ) on terrestrial magnetic in- 

 tensity, 58, 166, 254, 363 ; on the mag- 

 netic dip, 370; on the polarization of 

 heat, 542. 



Forchammer (G.) on some changes of 

 level which have taken place in Den- 

 mark, 309. 



Formic acid, artificial preparation of, 399. 



Fossil jaw of a gigantic quadrumanous 

 animal, on the, 33 ; fossil monkey, 393. 



Fourier (M.) on an error in his " Ana- 

 lyse des Equations," 38. 



Fox (R. W.) on the process by which mi- 

 neral veins have been filled, 203 ; on the 

 temperature of some mines in Cornwall 

 and Devonshire, 520. 



Fresnel's optical theory of crystals, analy- 

 tical reduction of, 462. 



Fritsche's experiments on the pollen, 165. 



Fumar acid, composition of, 164. 



Fyfe (Dr.) on the use of sulphate of cop- 

 per for exciting voltaic electricity, 145 ; 

 on the employment of iron in the con- 

 struction of voltaic batteries, 150. 



Gadolinite, analysis of, 143. 



Gahn's blowpipe, modification of, 58. 



Gallic acid, formation of, 163 ; on, 323. 



Galvanic shock-multiplier, on the, 460. 



Galvanometer, its efficiency for determi- 

 ning the conducting power of wires, 8; 

 on a thermoscopic, 378. 



Gardner (Mr.) on the internal structure of 

 the wood of palms, 553. 



Gaudichaud on the circulation of the sap 

 in Cissus hydrophora, 525. 



Gaudin (M.) on the artificial production 

 of rubies, 563. 



Gay-Lussac (M.) on siliceous and calca- 

 reous products, 403. 



Geological Society, 98, 201, 307, 390. 



Geology : — fossil jaw of a gigantic qua- 

 drumanous animal, I ; geology of Hol- 

 guin in Cuba, 17 ; colouring matter of 

 the greensand formation, 36 ; mountain 

 of La Silla, 25 ; land-shell limestone of 

 La Silla, 26 ; caves of La Silla, 29 ; coral 

 rock of Cuba, 31 ; elevation of the strata 

 on the coast of Chili, 98, 100; a deposit 

 containing land-shells, at Gore Cliff, 

 103 ; a trap dyke in the Penrhyn slate 

 quarries, 103 ; the strata usually termed 

 plastic clay, 104 ; pcology of Suffolk, 

 106; keuper sandstone of the new red 



D2 



