604 



INDEX. 



bustion, on the electric origin of, 98 ; 

 radiant, on the velocity of propagation 

 of, 379; tVieory of, 484. 

 Kenwood (W. J.), on the geology of State 

 of New Yorli, 325 ; on the geology of 

 New Brunswick, 326. 

 Hess (M.) on the quantity of heat evolved 



in chemical combination, 1. 

 Hodgkinson (E.) on the strength of pil- 

 lars of cast-iron, 167. 

 Hopkins (W.), researches in physical geo- 

 logy, 504. 

 llydrocyanic acid, preparation of, 267. 

 Hydrodynamics, discussion of a new 



equation in, 281. 

 Hydrostatic galvanometer, description of 



an, 66. 

 Ichthyosaurus, discovery of, in Ireland, 



83. 

 Indigo, researches on, 35. 

 Indigotin, action of potash on, 445. 

 Iodine, occurrence of, in nitric acid, 529. 

 Iremonger (R. J.) on a new hydrostatic 



galvanometer, 66. 

 Iron, note on the artificial magnetic oxide 



of, 340. 

 Iron-ores, method of determining the 



amount of metal in, 268. 

 Ivory (J.) on Lubbock's theory of heat 

 and vapours, 46 ; on mixed gases, 81 ; 

 on the constitution of the atmosphere, 

 197,278. 

 Joule (J. P.) on the electric origin of the 



heat of combustion, 98. 

 Kane (R.) on the chemical history of 



archil and litmus, 165. 

 Kelland (Rev. P.) on Mossotti's theory 

 of molecular action, 8 ; on the applica- 

 tion of the undulatory theory to the 

 explanation of dispersion, 373. 

 Kemp (Mr.) on the separation of gold 



and platina, 171. 

 King (R.) on the unexplored coast of 



North America, 488. 

 Kobell (M.) on gismondine, 441. 

 Kopp (Dr. H.) on the specific weight of 

 chemical compounds, 177 ; on a great 

 regularity in the physical properties of 

 analogous organic compounds, 187. 

 Kuhlnian (M.) on some nitrous com- 

 pounds, 75. 

 Landsborough (Rev. D.) on a newer 



pliocene deposit at Stevenston, 56. 

 Laurel turpentine, examination of, 273. 

 Laurent (M.), researches on indigo, 35 ; 

 on phenyl compounds, 37 ; on oil of 

 esdragon, 37. 

 Lecanorin, constitution of, 497. 

 Lembert (M.) on iodine in commercial 



nitric acid, 529. 

 Leucophan, analysis of, 531. 

 L'HuilHer (S.), notice of (he late, 257. 



Lichens, on some of the substances they 



contain, 495. 

 Liebig (J.) on anthranilic acid, 35 ; on 

 the preparation of cyanide of potassium, 

 and on its applications, 266. 

 Light, on the theory of the dispersion of, 

 304 ; on the motion of, in an elastic 

 medium, 370 ; on the action of, on re- 

 volving discs, 449 ; during crystalliza- 

 tion, 530. 

 Lubbock (Sir J. W.), theory of heat and 



vapours, remarks on, 46. 

 Luminous waves, on the propagation of, 

 in the interior of transparent bodies, 

 201. 

 Lunar spectrum, on the magnetic influence 



of the, 39. 



Lyell (C.) on the Faluns of the Loire, 49; 



on the Silurian strata betweenAymestry 



and Wenlock, 335 ; on the Silurian 



strata near Christiania, 337^ 



M'Enery (Rev. J.), notice of the late, 547. 



Maclauchlan (Mr.) on fossils collected in 



Pembrokeshire, 60. 

 Maclure (W.), notice of the late, 526. 

 Magnetic influence of the lunar spectrum, 



39. 

 Magnetic disturbance of September 25th, 

 and 26th, 1841, observations m.ide du- 

 ring the, 146. 

 Magnetism, experiments in, 225. 

 Maiden (Prof H.) on the development of 

 the cosines and sines of multiple arcs, 

 113. 

 Marchand (M.) on the water of crystalli- 

 zation of citric acid, 33 ; on picrinnitric 

 acid, 35. 

 Matteucci (Ch.) on a phaenomenon pre- 

 sented by solution of nitrate of silver 

 decomposed by the current, 65. 

 Mellon (M.) on the preparation of hydro- 



bromic and hydriodic acid, 529. 

 Mercury, on the mass of the planet, 137. 

 Metals, on the magnetism of the so-called 



unmagnetic, 229. 

 Meteorological observations, 79, 175,263, 



351, 447,535. 

 Microscopical researches of Ehrenberg 



and D'Orbigny, notice of the, 565. 

 Miller (Prof.) on the specific gravity of 



the sulphuret of nickel, 378. 

 Milward (A.) on the action of light on 



revolving discs, 449. 

 Minerals, new, analyses of several, 440, 



530. 

 Molecular action, on Mossotti's theory of, 8. 

 Moleyns (F. W. de) on the magnetic in- 

 fluence of the lunar spectrum, 39. 

 Morin (M.), analysis of wasser-glimmer, 



443. 

 Morris (J.), award of WoUaston fund to, 

 544. 



