﻿INDEX. 



581 





Dewar (Prof.) on the spectrum of the 

 electric discharge in liquid oxygen, 

 air, and nitrogen, 235. 



Dielectric power of ice, on the, 578. 



Dielectrics, on, 396. 



Diffraction, observations on, 70. 



Dissociation, on heat of, according to 

 the electrochemical theory, 332. 



Draper (D.) on the geology of S. 

 Africa, 503 ; on the occurrence of 

 dolomite in S. Africa, 504. 



Earth, on the level of do strain within 

 a solid, 131 j on the rigidity of the, 

 218 ; on densities in the crust of 

 the, 413. 



Ebert (Prof. II.) on heat of disso- 

 ciation according to the electro- 

 chemical theory, 332. 



Electric conduction, on the mechan- 

 ism of, 55. 



discharge, on the spectrum 



of the, in liquid oxygen, air, and 

 nitrogen, 235. 



resonance and interference, 182. 



Electricity, on the atom of, 418; on 

 wave-lengths of, on iron wires, 

 425, 441. 



Electrification of air, on the, 225. 



Electrochemical theory, on heat of 

 dissociation according to the, 332. 



Electromagnetic induction in plane, 

 cylindrical, and spherical current- 

 sheets, 198. 



waves in ice, on the propagation 



of, 578. 



Electromotive force, on telephonic 

 measurement of, 558. 



Electron, on the, 418. 



Electro-optics, on a fundamental 

 question in, 144. 



Elster (Dr. J.) on the photoelectric 

 current, 158. 



Ewan (Dr. T.) on the rate of oxida- 

 tion of phosphorus, sulphur, and 

 aldehyde, 505. 



Fawcett (F. B.) on the energy of the 

 Amperian molecule, 473. 



Fessenden (Prof. R. A.) on the spe- 

 cific inductive capacities of water, 

 alcohol, &c, 567. 



Fisher (Rev. 0.) on the level of no 

 strain within a solid earth, 131. 



Fluid, on the resistance of a, to a 

 plane kept moving uniformly in a 

 direction inclined to it at a small 

 angle, 409. 



Fromm (0.) on the formation of 

 floating metal laminae, 248. 



Gabbros, on some Tertiary, 578. 



Galvanometer, on a sensitive form of 

 Thomson, 553. 



Galvanometer-needles, on a new 

 method of magnetizing and aslaii- 

 cizing, 482. 



Gases, on the diffusion of, 1 ; on the 

 kinetic theory of the viscosity of, 

 46 ; on the velocity of sound in, 

 for pure notes of different pitch, 

 249 j on the relations of pressure, 

 volume, and temperature of rare- 

 fied, 301. 



Geikie (Sir A.) on the basic and acid 

 rocks of the Tertiary volcanic series 

 of the Inner Hebrides, 242 ; on the 

 banded structure of some Tertiary 

 gabbro?, 573. 



Geitel (H.) on the photoelectric 

 current, 158. 



Geological Society, proceedings of 

 the, 157, 240, 421,501, 573. 



Gneisses, on the Waldensian, 241. 



Gravity-potential of a ring, on the, 

 456. 



Greenstones, on the conversion of 

 compact, into schists, 240. 



Gregory (Dr. W.) on the Waldensian 

 gneisses, 241 ; on the geology of 

 Monte Chaberton, 501 ; on the 

 geology of British East Africa, 504. 



Gresley (W. S.) on cone-in-cone 

 structure, 502 ; on the occurrence 

 and origin of anthracite, 576. 



Gutta-percha, on some electrical 

 properties of, 403. 



Harker (A.) on the Carrock Fell 

 gabbro, 501. 



Harmonic analyser, on a new, 110, 

 121, 125. 



Hatchet planimeter, on the, 265. 



Heat of dissociation according to the 

 electrochemical theory, on, 332. 



Henderson (J. B.) on the effects of 

 magnetic fields on the electric 

 conductivity of bismuth, 488. 



Henrici (Prof. O.) on a new harmonic 

 analyser, 110. 



Hicks (W. M.) on the self-induction 

 and on the gravity-potential of a 

 ring, 456. 



Hill (F. W.) on the hatchet plani- 

 meter, 265. 



Holmes (T. V.) on the relations of 

 the Thames Valley beds to the 

 boulder clay, 423. 



Hydrogen, on the passage of, through 

 a palladium septum, 206. 



