INDEX. 



603 



Electric force traversing interposed media, 

 on the direction and propagation of the, 

 185. 



Electrodynamic induction, 200, 551. 



Electromotive forces, differences of the 

 on the contact of two metals with two 

 fluids, 495. 



Electromotive power of heat, on the, 451. 



Electrotypes, on the production of, 530. 



Elementary bodies, on the galvanic pro- 

 perties of the, 422. 



Eliminating (ar), a rule for absolutely, 132. 



Elimination and derivation by a process 

 of mere inspection, 132. 



Embryology, Dr. Barry's researches in, 

 526-. 



Encke's Comet, on the variation of the 

 apparent diameter of, 150. 



England, Copernican theory in, on the re- 

 ception of the, 461. 



Equations, combination of the given, 40; 

 leading theorem, 40 ; inferences from 

 the, 40 ; of co-existence, statement of 

 the, 40. 



Eudialyte, on the form of, 477. 



Exosmose, mechanical, with reference to 

 detennining the magnitude of material 

 particles, 10. 



Eyes, on single vision with two, 599. 



Faraday's ( Prof.) experimental researches 

 in electricity, 16th series, 329; 17th 

 series, 336. 



Fermentation, on the supposed formation 

 of inorganic elements during, 251. 



Ferriter's Cove, fossils discovered at, 167. 



Ferrocyanide of potassium, on a new com- 

 pound of, with cyanide of mercury, 128. 



Films, coloured, produced by electro-che- 

 mical agency and by heat, 52. 



Fluids, on galvanic circuits composed of 

 two, 485. 



Fluorine, Mr. Knox's researcheii on, 192 ; 

 on a compound of, with selenium 194. 



Forbes (J. D. ), letter to Richard Taylor, 

 Esq. on two papers in the L. & E. Phil. 

 Mag. for Jan. 1840, 102; on an appa- 

 rent inversion of perspective in viewing 

 objects with a telescope, 506. 



French cast irons, description of, prepared 

 near Aiais, 571. 



Freshwater deposits, on the, composing the 

 mudclifFs of E. Norfolk, 345. 



Galle(!M.) on the discovery of a comet by, 

 151. 



Galvanic circuits composed of two fluids, 

 and of two metals, not in contact, 485. 



Galvanic series formed of zinc and inac- 

 tive iron, 1 15. 



Galvanism, chemical and contact theories 

 of, 485. 



Gas, pond, M. Persoz on, 339. 



Gasbiot (J. P.) on obtaining the voltaic 



2 



spark before the circuit is completed, 

 594; letter to Mr. Lubbock on Nobili's 

 plate of colours, 596. 



Gay Lussac (M.), analyses of four sorts of 

 iron by, 522. 



Geology : — on the geology of Devon and 

 Cornwall, 59; on the older stratified 

 rocks near Killarney and Dublin, 163 ; 

 fossils discovered at Ferriter's Cove, 

 167 ; on the boulder formation and 

 freshwater deposits of E. Norfolk, 345 ; 

 Paludina minula, 354 ; fish, 354 ; in- 

 sects, 354 ; mammalia, 355 ; plants, 355 ; 

 protuberances of chalk near Trimming- 

 ham, 355 ; freshwater strata of Runton, 

 362 ; shells at 363 ; crag at, 363 ; cliff's 

 between Cromer and Sherringham, 

 365; crag near Weybourne, 370; shells 

 obtained from the, 370; mud cliffs of 

 E. Norfolk, 371; Norwich crag, 372; 

 shells found in, 372; fossils in the 

 clay state tract of the Ardennes, 389 ; 

 fossils common to the Eifel limestone, 

 399 ; on two ores from the Skut- 

 teruder mine, 482. 



Geological Society, proceedings of the, 148. 



Germany, Norway and Russia, on mag- 

 netic observations in, 598. 



Glass, on modifications of the powers of 

 heat and light, when transmitted through, 

 467. 



Gravid uterus, on the nerves of the, 590. 



Griffith (R.) on the order of succession of 

 the older stratified rocks near Killarney 

 and Dublin, 163. 



Grove, (W. R. ) on voltaic reaction, 338 ; 

 on some phenomena of the voltaic dis- 

 ruptive discharge, 478. 



Gulliver (G.) on the blood corpuscles or 

 red disks of the mammiferous animals, 

 23, 105, 195; on the blood corpuscles 

 of certain species of the genus Cervus, 

 599. 



Gutch (J. W. G.) on meteorological phae- 

 nomena observed at Swansea, 87. 



Hail, on a remarkable fall of, 85. 



Halliwell (J. O.) on the treatise of Boe- 

 tius de Geoinetria on numerical contrac- 

 tions, 51 ; on the Boetian contractions, 

 with reference to the explanation given 

 by M. Chasles, 136; note on the Boe- 

 tian contractions, 221 ; on the histoiy 

 of the inductive sciences, 461. 



Hardy (Peter) on a new and general no- 

 tation, applicable to the doctrine of life 

 contingencies, 598. 



Harris (W. S.) on lightning conductors, 

 and efl^ects of, lightning on certain ships 

 of the British Navy ; being a further ex- 

 amination of Mr. Sturgeon's inemoir on 

 marine lightning conductors, 116, 404; 

 on the electrical discharge, 404. 



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