INDEX. 



565 



Electrolysis, on the production of vi- 

 brations and sounds by, 401. 



Electromotive force of voltaic piles, on 

 the, 76. 



Electro-physiological researches, 31 1 . 



Engelhardt (M.) on the detection of 

 baryta and strontia, 520. 



Equation, transcendent, on a, 19 ; on 

 a symbolic and biquadratic, 127 ; 

 in differences, on the integral of 

 the general, 436. 



Equntions, differential, on a new 

 species of, 37 ; of the fifth order, 

 on, 193, 290. ' 



Equilibrium, on figures of, of a liquid 

 mass without weight, 128. 



Ethers, on some new, 305. 



Ethylene, on the sulphide and sulpho- 

 carbonate of, 387. 



Eye, on the diathermancy of the 

 media of the, 176. 



Falconer (Dr. H.) on Plagiaulax, 240. 



Faraday (Prof.) on gas-furnaces, 162. 



Field (F.) on some basic salts of 

 copper, 123. 



Films, on the generation of liquid, 

 128. 



Finck (M.) on some products of the 

 decomposition of pyroracemic acid, 

 191. 



Fizeau (H.) on the modifications 

 which the velocity of light experi- 

 ences under the influence of heat, 

 492. 



Flames of the chlorides, on the pris- 

 matic spectra of the, 417. 



Fluid, elastic, mathematical theory of 

 the vibrations of an, 135, 291. 



Forces of inorganic nature, on the, 

 57,371. 



Forsberg (M.) on artificial tungstates, 

 28. 



Frankland (Dr. E.) on the influence 

 of atmospheric pressure on some of 

 the phenomena of combustion, 232. 



Franz (R.) on the diathermancy of 



the media of the eye, 176. 

 Fraunhofer-lines visible in the solar 



spectrum, on the, 1. 

 Friedel (M.) on the conversion of 



acetones into alcohols, 309. 

 Gas-furnaces, observations on, 162. 

 Gassiot (J. P.) on the heat developed 

 at the poles of a voltaic battery 

 during the passage of luminous 

 discharges, 225. 



Gaudin (M.) on soluble aluminate of 



baryta, 27. 

 Gaugain(M.)onthe limit of the charge 



of condensers, 495. 

 Gelis (M.) on hyposulphuric acid, 189. 

 Geological Society, proceedings of 



the, 73, 165,240,323,491. 

 Geuther (M.) on artificial tungstates, 

 28 j on nitride of magnesium, 381. 

 Giles (W. B.) on the reduction of 

 manganese from the protochloride 

 by sodium-amalgam, 328. 

 Gladstone (Dr. J. H.) on the atmo- 

 spheric lines of the solar spectrum, 

 70 ; on the violet flame of many 

 chlorides, 417. 

 Gore (G.) on the production of vibra- 

 tions and sounds by electrolysis, 

 401 ; on the nature and qualities of 

 voltaic currents, 403. 

 Graham (T.) on liquid transpiration in 

 relation to chemical composition, 

 238. 

 Greg (R. P.) on some meteorites, 534. 

 Ground-ice, observations on, 241. 

 Gunpowder, on the combustion of, in 

 vacuo, and in various gaseous media, 

 407. ' 

 Hamilton (Sir W. R.) on a symbolic 



and biquadratic equation, 127. 

 Harbordt (M.) on the essential oil of 



rue, 529. 

 Harkness (Prof. R.) on the position 

 of the Pteraspis-heds in South 

 Perthshire, 73 ; on the metamor- 

 phic rocks of the Banffshire coast, 

 165. 

 Heat, on the dynamical theory of, 

 121, 173, 327; on the phenomena 

 of, which accompany the changes 

 in volume of solid bodies, 329 ; on 

 the absorption and radiation of, by 

 gaseous matter, 270, 337, 422. 

 Hippuric acid, on new derivatives of, 



190. 

 Hlasiwetz (Prof.) on a new acid from 



milk-sugar, 529. 

 Hofmann (Prof.) on the colouring 



matters from aniline, 547. 

 Honeyman (Rev. D.) on the gold- 

 fields of Nova Scotia, 165. 

 Husemann (M.) on the sulphocarbo- 



nate of ethylene, 387. 

 Huxley (Prof.) on some new Laby- 



rinthodonts, 75. 

 Hydracrylic acid, 308. 



