534 



IXDEX. 



Debus (Dr. H.) on the genesis of 

 Dalton's atomic theory, 350. 



Diathermancity, lecture experiment 

 on, 208. 



Dielectrics, on the effect of tempera- 

 ture on the resistance of, 148. 



Diffusion, on the separation of gases 

 by, 493. 



Duane (W.) on a damping action of 

 the magnetic field on rotating in- 

 sulators, 288. 



" Ducks and drakes," on a theory of, 

 111. 



Dundry Hill, on the geology of, 285. 



Dynamics, on the hypotheses of 

 abstract, 240. 



Earthquakes, on the diurnal periodi- 

 city of, 463. 



Edison effect in glow-lamps, on the, 

 52. 



Elastic constants, on the number of, 

 240. 



Electric arc, on the resistance of 

 the, 407. 



currents, on the measurement 



of the frequency of alternating or 

 pulsating, 159, 271. 



discharge in a magnetic field, 



on the, 245. 



images in the field of a Hittorf's 



(Crookes') tube, on, 308. 



waves, on the refractive indices 



of some substances for very short, 

 207. 



Electricity, on the passage of, through 

 gases exposed to Rontgen rays, 

 392. 



Electrolytes, on the degree of dis- 

 sociation of, at 0°, 102. 



Electromagnetic medium, on the 

 wave-surface and rotation of po- 

 larization plane in an aeolotropic, 

 224. 



Electromotive force, on the action of 

 magnetism on, 288. 



Electrons and electric charges, on 

 the theory of moving, 201. 



Elements, on the analytical repre- 

 sentation of the periodic system of 

 the, 277. 



Feilden (Col. H. W.) on the glacial 

 geology of Arctic Europe, 449. 



FitzGerald (Prof. G. F.) on the 

 longitudinal component in light, 

 260. 



Fleming (Prof. J. A.) on the Edison 

 effect in glow-lamps, 52. 



Fourier's series, on the convergency 

 ^ of, 125. 



Frequency of alternating currents, on 

 nsw instruments for measuring 

 the, 159. 



Frith (J.) on the resistance of the 

 electric arc, 407. 



Galvanometers, on, 442. 



Gardiner (C. I.) on the Kildare in- 

 lier, 372. 



Gaseous state, on the continuity of 

 isothermal transformation from the 

 liquid to the, 231. 



Gases, on the passage of electricity 

 through, when exposed to Rontgen 

 ravs, 392 ; on the separation of, by 

 diffusion, 493. 



Geological Societv, proceedings of 

 the, 116, 206, 283, 371, 447. 



Glow-lamps, on the Edison effect in, 

 52. 



Gold, on the melting-point of, 37. 



Goldhammer (Dr. A.) on the analy- 

 tical representation of the periodic 

 system of the elements, 277. 



Granites, on the foliated, of Eastern 

 Sutherland, 447. 



Greenly (E.) on the foliated granites 

 of Eastern Sutherland, 447 ; on 

 the geology of Eastern Anglesey, 

 448. 



Harmer (F. W.) on the Pliocene de- 

 posits of Holland, 286. 



Hittorf's tube, on electric images in 

 the field of a, 308. 



Holland, on the Pliocene deposits of, 

 286. 



Holman (Prof. S. W.) on the melt- 

 ing-points of aluminium, silver, 

 gold, copper, and platinum, 37. 



Home (J.) on the foliated granites of 

 Eastern Sutherland, 447. 



Hyperphosphorescence, on, 103. 



Iddings (Prof. J. P.) on extrusive 

 and intrusive igneous locks, 450. 



Impedance loci, on, 300. 



Insulators, on a damping action of 

 the magnetic field on rotating, 288. 



Isothermal transformation from the 

 liquid to the gaseous state, on the 

 continuity of, 231. 



Jamaica, on the geographical evolu- 

 tion of, 283. 



Jones (Prof. J. V.) on the magnetic 

 field due to an ellipt cal current 

 at a point in its plane within it, 

 107. 



