574 



INDEX. 



Douliot (M.) on the action of flames 

 in the presence of electrified bodies, 

 88. 



Duter (E.) on the distribution of 

 magnetism in circular or elliptic 

 plates of steel, 85. 



Dynamo-magneto-electric machine, 

 on a new form of, 71. 



Ebonite, on electromachines with 

 disks of, 347. 



Edlund (Prof. E.) on galvanic re- 

 sistance as dependent on the motion 

 of the conductor, 89. 



Electric current, on a case of work 

 produced by the, 469. 



Electrical discharges in vacuo, on the 

 cause of stratification in, 239. 



resistance of iron and steel, 



on the change produced by mag- 

 netization in the, 153. 



Electricity, on some problems con- 

 nected 'with the flow of, in a plane, 

 373. 



Electrodes, on the polarization of, in 

 water free from air, 142. 



Electrodynamics, on a new funda- 

 damental law of, 69, 218. 



Electromachines with disks of ebon- 

 ite, on, 347. 



Electromagnets, on the effect of thin 

 plates of iron used as armatures to, 

 564. 



Energy, on the distribution of, in a 

 mass of liquid in a state of steady 

 motion, 108 ; on the bearing of the 

 fundamental law of electro-dyna- 

 mics toward the principle of the 

 conservation of, 218. 



Fave (L.) on the action of heat in 

 magnetization, 253. 



"Feldspar'' and "feldstone," 567. 



Ferrel (W. ) on a controverted point 

 in Laplace's theory of the tides, 

 182. 



Fisher (Mr. 0.) on Mallet's theory of 

 volcanic energy, 138. 



Flames, on the action of, in the pre- 

 sence of electrified bodies, 88 ; on 

 the transparence of, 171. 



Fleming (J. A.) on the polarization 

 of electrodes in water free from 

 air, 142. 



Fromme (Dr. C.) on the magnetism 

 of steel bars, 188, 293. < 



Gallium, on some properties of, 173, 

 176 ; remarks on the discovery of, 

 542. 



Galvanic circuit, on the induction- 

 spark produced in breaking a, 

 between the poles of a magnet, 

 461. 



resistance dependent on the 



motion of the conductor, on, 89. 



Gases, on the second law of thermo- 

 dynamics in connexion with the 

 kinetic theory of, 61. 



Gaugain (J.-M.) on the influence of 

 temperature on magnetization, 411. 



Geological Society, proceedings of 

 the, 159, 326, 558. 



Glaisher (J. W. L.) on the represen- 

 tation of an uneven number as a 

 sum of four squares, 44. 



Gordon (J. E. H.) on the determina- 

 tion of Verdet's constant in absolute 

 units, 73. 



Gunn (G.) on the Forest-bed series in 

 Suffolk, 161. 



Guthrie (F.) on salt solutions and 

 attached water, 49, 354, 446. 



Hartley (W. N.) on the action of 

 heat on the absorption-spectra and 

 chemical constitution of saline 

 solutions, 244. 



Heat, on the mechanical theory of, 

 22, 61, 369 ; on the action of, on 

 the absorption-spectra and che- 

 mical constituents of saline solu- 

 tions, 244; on the action of, in 

 magnetization, 253 ; on the appli- 

 cation of the mechanical theory of, 

 to the study of volatile liquids, 477. 



Heaviside (0.) on duplex telegraphv, 

 32. 



Hicks (H.) on the Upper Silurian 

 and Palaeozoic rocks, 169 ; on the 

 occurrence of phosphates in the 

 Cambrian rocks, 415. 



How (Prof. H.) on the mineralogy 

 of Nova Scotia, 128. 



Induction, on the phenomena of, 

 255. 



Induction-spark produced in breaking 

 a galvanic circuit between the poles 

 of a magnet, on the, 461. 



Judd (J. W.) on the ancient volcano 

 of the district of Schemnitz, 562. 



King (Prof. W.) on the serpentinite of 

 the Lizard, 280. 



Knight (C.) on streams from glaciers, 

 496. 



Konig (Dr. R.) on the simultaneous 

 sounding of two notes, 417, 511. 



Laplace's theory of tides, on, 182. 



