604 



INDEX. 



Hawkins (Th.) on galvanic series formed 

 of zinc and inactive iron, 115. 



Haydenite, 155; and Couzeranite, on, 

 175. 



Heat and light, on modifications of the 

 powers of, when transmitted through 

 glass, 467. 



Heat of vapours, and on astronomical re- 

 fractions, 4S4 ; general expressions, 438. 



Heat, on the electromotive power of, 451. 



Henderson (T.) on the parallax of Sirius, 

 148. 



Henry (Prof.), contributions to electricity 

 and magnetism: No. III. on electro- 

 dynamic induction, 200, 254, 551 ; 

 production of induced currtnts of the 

 different orders from ordinary electri- 

 city, 551. 



Herschel (Sir J. W. F.), letter to, from M. 

 Valz, on the variation of the apparent 

 diameter of Encke's comet, 150 ; on ob- 

 taining an increased quantity of light 

 from a common Argand oil lamp, 194 ; 

 on the solar spectrum and photometry, 

 239 ; on the chemical action of the rays 

 of the solar spectrum, 331. 



Howard (Luke) on the wet summer of 

 1839, 600. 



Human body, on arsenic contained natu- 

 rally in the, 341. 



Hunt ( II.) on the permeability of various 

 bodies to the chemical rays, 138 ; results 

 arrived at, 141 ; on li^lit which has 

 permeated coloured media, and on the 

 chemical action of the solar spectrum, 

 267. 



Hyacinth, H.M. Ship, effect of lightning 

 on, 405. 



Hydrocarburet of bromine, 236. 



Hydrochloric acid, ascendency of water 

 over, 537. 



Hydrogen of acetates, carburetted, action 

 of chlorine on the, 235. 



India, on the temperature of the sea and 

 air, during a voyage to, 176. 



Induction, on electro-dynamic, 200 ; of 

 a current on itself, conditions which 

 influence the, 203 ; of secondary cur- 

 rents at a distance, on the, 254. 



Inductive sciences, on the history of the, 

 461. 



Inorganic elements during fermentation, 

 on the supposed formation of, 251. 



Iodide of potassium, on a pseudomor- 

 phnus variety of, 221. 



Ireland, on the mineral structure of the 

 south of, 276, 388. 



Iron, cast, steel, and malleable iron, on the 

 different species of, 44, 297 ; zinc and 

 inactive, on galvanic series formed of, 

 115; decomposition of the neutral sul- 

 phate of the peroxide uf, by boiling its 



solution, 130; anomalous electric con- 

 dition of, 142; precipitation of, by zinc, 

 235; natural products which originate 

 from the action of the atmosphere on 

 iron pyrites, 265 ; analysis of four sorts 

 of, 522. 



Isere, de 1', analysis of iron from, 522. 



Ivory (J.) on the theory of the astronomi- 

 cal refractions, 89. 



Jeffreys (Julius) on mechanical exosmose 

 with reference to determining the mag- 

 nitude of material particles, 10. 



Jones (T. Wharton) on single vision with 

 two eyes, 599. 



Kane (Dr. R.) on a new compound of 

 ferrocyanide of potassium, with cyanide 

 of mercury, 128; on a pseudomcrphous 

 variety of the iodide of potassium, 22S ; 

 on the compounds derived from the 

 stearopten of oil of peppermint, 418. 



Killarney and Dublin, on the order of 

 succession of the older stratified rocks 

 near, 163. 



Knight's move at chess, on the problem of 

 the, 306, 493. 



Knox (G. J.) on the direction and mode 

 of propagation of the electric force tra- 

 versing interposed media, 1 85 ; re- 

 searches on fluorine, 192. 



Kreil (M.), letter from, to M. Kupffer, on 

 magnetic observations at Milan, 241. 



Kupffer (M.), letter to, from M. Kreil, 

 on magnetic observations at Milan, 241. 



La Caille's arc of the meridian, 594. 



Lead, chromate of, on the reduction of, 

 532. 



Lee (Dr.) on the nerves of the gravid 

 uterus, 590. 



Lempriere (M.), meteorological register 

 kept at Port Arthur, 600. 



Letter barometer, 79. 



Liege and Namur, species of coral found 

 in the cai'boniferous limestone of, 390. 



Life contingencies, on a new and general 

 notation, applicable to the doctrine of, 

 598. 



Light of the sun, experiments made in the 

 south of Virginia on the, 81. 



Light: — undulatory hypothesis of, experi- 

 ment proposed by M. Arago, as a test 

 of the accuracy of the, 157, 181 ; ab- 

 sorption of, 181 ; on obtaining an in- 

 creased quantity of, from a common 

 Argand oil lamp, 194 ; on interferences 

 as an experimentum crucis as to the na- 

 ture of, 380. 



Lightning conductors, 116; effects of 

 lightning on certain ships in H. M. 

 Navy, 117, 404; on the Athol, 406; 

 on the Snake, 407 ; on the spire of a 

 church at Kingsbridge, 408 ; on the 

 Buzzard brigantine,408; on the Fox re- 



