486 



INDEX. 



Forel (F.-A.) on the structure and 

 movement of glaciers, 238. 



Foussereau (G-.) on the electric resist- 

 ance of glass at low temperatures, 

 325. 



Gas, on a property of the isentropic 

 curve for a perfect, 233. 



Gaseous fluids, on the connexion be- 

 tween viscosity and density in, 51. 



Gases, on the electric discharge in 

 rarefied, 366 ; on the elasticity of 

 rarefied, 403. 



Geissler tubes, on the connexion be- 

 tween the gas-density and stratum- 

 interval in, 402; on the distribu- 

 tion of phosphorescent light in, 455. 



Geitel(H.) on the electricitv of flame, 

 161. 



Geological Society, proceedings of 

 the, 73, 141, 477. 



time, on the duration of, 427. 



Glacial period, on the, 151. 



Glaciers, on the structure and move- 

 ment of, 238. 



Glass, on double refraction produced 

 by electrical influence in, 127 ; on 

 the electric resistance of, 325. 



Goldstein ("Dr. E.) on the electric 

 discharge in rarefied gases, 366; 

 on the connexion between the gas- 

 density and stratum-interval in 

 Geissler tubes, 402 ; on the reflec- 

 tion of electrical rays, 449; on 

 the influence of the shape of the 

 kathode on the distribution of 

 phosphorescent light in Geissler 

 tubes, 455. 



Haughton (Rev. S.) on Darwin's 

 theory of the evolution of the 

 earth-moon system, 427. 



Helmholtz (Prof. H.) on systems of 

 absolute measures for electric and 

 magnetic quantities, 430. 



Hirn (G. A.) on Siemens'snew theory 

 of the sun, 478. 



Holman (S. W.) on a simple method 

 for calibrating thermometers, 294. 



Idocrase, on the crvstalline form of, 

 121. 



Isentropic curve, on a property of the, 

 for a perfect gas, 233. 



Jamieson (T. F.) on the cause of the 

 depression and re-elevation of the 

 land during the glacial period, 151. 



Jamin (M.) on the reaction-current 



of the electric arc, 154; on the 

 appearances of the electric arc in 

 the vapour of bisulphide of carbon, 

 324. 



Johnston-Lavis (H. J.) on the com- 

 parative specific gravities of molten 

 and solidified Vesuvian lavas, 141. 



Judd (Prof. J. W.) on the relations 

 of the eocene and oligocene strata 

 in the Hampshire Basin, 73. 



Kerr's phenomena, observations on, 

 127. 



Lap worth (Prof. 0.) on the Girvan 

 succession, 147. 



Lava, on the specific gravities of 

 molten and solidified Vesuvian, 

 141. 



Lewis (W. J.), crystallographic 

 notes by, 119. 



Life, on the correlation of the che- 

 mistry of the carbon compounds 

 with the phenomena of, 346. 



Light, on the duration of the per- 

 ception of, 230 ; on the influence 

 of the shape of the kathode on 

 the distribution of phosphorescent, 

 in Geissler tubes, 455. 



Lippmann (G.) on a thermoscopic 

 method for the determination of 

 the ohm, 407. 



Liquid, on the steady flow of a, 

 110 ; on the influence of the quan- 

 tity of gas dissolved in a, on its 

 surface-tension, 236; on the sur- 

 face-tension of a, in contact with 

 carbonic acid, 327. 



Lodge (Dr. O. J.) on the dimensions 

 of a magnetic pole in the electro- 

 static system of units, 357. 



Ludlamite, on the crystalline form of, 

 120. 



Liibeck (G.) on the motion of a sphe- 

 rical atom in an ideal gas, 157. 



Magnetic and electric quantities, on 

 systems of absolute measures for, 

 430. 



Magnetism, on the dimensions of a 

 unit of, in the electrostatic svstem 

 of measures, 124, 225, 357, 395. 



Magnetometer, on a, 227. 



Maneuvrier (G.) on the reaction-cur- 

 rent of the electric arc, 154; on 

 the appearances of the electric arc 

 in the vapour of bisulphide of car- 

 bon, 324. 



