INDEX. 



549 



Eudionietry, on the application of the gas 

 voltaic battery to, 268, 346, 422. 



Eye, on the adjusting power of the, 474. 



Faraday (Prof. M.) on the nature of mat- 

 ter, 136. 



Favre (P. A.) on the equivalent of zinc, 

 233 ; on a double carbonate of ammo- 

 nia and magnesia, 475. 



Faye's comet, on the orbit of, 519. 



Fermentation, observations on, 372. 



Ferric acid, on the composhion of, 41, 

 498. 



Ferrocyanide of potassium, action of oil 

 of vitriol upon, 21. 



Fish, descriptions of new fossil, 51, 375. 



Fitton (Dr. W. II.) on the lower green- 

 sand of the Isle of Wight, 224 ; on the 

 lower greensand of Kent, 311. 



Flax and hemp, on the chemical consti- 

 tution of, 98. 



Fossil chimaeroid fishes, new species of,51. 



Fossil trees, observations on some, 74, 

 165. 



Fownes (G.) on the action of oil of vitriol 

 upon ferrocyanide of potassium, 21. 



Francis (W.) on the action of alkalies on 

 wax, 17 ; on African guano, 470. 



Fremy (E.) on the preparation of osmium, 

 393 ; on the preparation of iridium, 

 474. 



Fromberg (M.) on pectic acid, 319. 



Furze (J. N.) on fermentation, 372. 



Galbraith (W.) on the determination of 

 distances, 181. 



Gallic acid, new process for preparing, 314. 



Gannal (M.) on a new method of pre- 

 serving animal substances, 545. 



Gardner (Dr.) on the action of yellow 

 light and indigo light on plants, 1. 



Gases, remarks on the elasticity of, 354. 



Gassiot (J. P.) on an extensive series of 

 the water battery, 460. 



Gas voltaic battery, application of, to eu- 

 diometry, 268, 346, 422. 

 Geological Society, proceedings of the, 



51, 144, 217,308, 375. 

 Geology : — descriptions of some new fos- 

 sil fish, 51, 375 ; geology of Bayonne, 

 55 ; observations on the Crinoidea, 57 ; 

 new Encrinite, 58 ; on a fossil pine- 

 forest at Kurrur-kurran, 59 ; on some 

 pleistocene deposits in Essex, 62 ; on 

 the tin-mines of the Tenasserim pro- 

 vince, 63 ; geology of Surrey, 65, 222 ; 

 on the freshwater fossils of Brora, 71 ; 

 on some fossil trees found in Nova 

 Scotia, 74 ; on the theory of reciprocal 

 dependence in the animal and vegetable 

 creations as regards its bearing on pa- 

 laeontology, 90 ; on changes in the tem- 

 perature of the earth, 144 ; on the coal- 



formation of Nova Scotia, 146 ; on some 

 fossil trees discovered near St. Helen's, 

 165 ; on the heaves of metalliferous 

 veins, 180, 258 ; geology of the west 

 coast of Africa, 217; classification of 

 granitic rocks, 220 ; on the lower green- 

 sand of the Isle of Wight, 224, 311 5 

 on scratched rocks, 230; on Ichthy- 

 opodolites, ib. ; on some fossiliferous 

 beds of Southern India, 231 ; on the 

 Killas group of Cornwall and South 

 Devon, 232 ; geology of North Wales, 

 246 ; on the geology of the vicinity of 

 Hythe, 308 ; on remains of insects in 

 the upper lias of Gloucester, 377 ; on 

 the Dinornis, 378 ; description of Be- 

 lemnites from the Oxford clay, 464 ; on 

 some fossil remains from Brazil, 541. 

 Gesner (Dr. A.) on the geology of Nova 



Scotia, 149. 

 Girardin (M.) on the composition of an- 

 cient and fossil bones, 154 ; on guano, 

 317. 

 Gold, on a new cyanide of, 515. 

 Goldschmidt's (Dr.) calculation of the 



elements of the new comet, 519. 

 Goodman (J.) on the cause of dissimila- 

 rity in the phenomena of electric fluids, 

 174. 

 Graham (Prof. T.) on the heat disengaged 



in combinations, 401. 

 Granitic rocks, on the classification of, 



220. 

 Gregory (Prof.) on some products of the 



decomposition of uric acid, 186. 

 Grove (Prof.) on the correlation of phy- 

 sical forces, 76 ; on the gas voltaic bat- 

 tery, 268, 346, 422. 

 Guano, analyses of, 317, 394, 470. 

 Harkness (Mr.) on changes in the tem- 

 perature of the earth, 144. 

 Heat, animal, observations on, 456. 

 Heat disengaged in combinations, expe- 

 riments on the, 401, 457. 

 Hemp, on the chemical constitution of, 



98. 

 Henderson (Prof.) on the orbit of the 



comet of Faye, 519. 

 Hennessy (H.) on a meteorological phe- 

 nomenon, 238. 

 Henwood (W. J.) on the heaves of me- 

 talliferous veins by cross veins, 180, 

 258. 

 Herapath's (W.) analysis of the Bath wa- 

 ters and of the Bristol hot-well water, 

 371. 

 Herschel (Sir J. F. W.) on the entrance 

 passages in the pyramids of Gizeh, 481 ; 

 on the increase in magnitude of the 

 star r] Cygni, 523. 

 Hofmann (Dr. A. W.) on the organic bases 



