550 



INDEX. 



intensity of, by the electrometer, 



396. 

 Davis (A. S.) on recurrent vision, 526. 

 De la Rive (A.) on the electric jet in 



rarefied gases, 149. 

 Desains (P.) on the reflection of heat, 



Devvar (J.) on the chemical effici- 

 ency of sunhght, 307 ; on the spe- 

 cific heat of hydrogenium, 400 ; 

 on the specific heat of carbon at 

 high temperatures, 461. 



Diffraction-gratings, on the reproduc- 

 tion of, by photograjihy, 392. 



Dispersion, on the anomalous, exhi- 

 bited bv certain substances, 395. 



Draper (Dr. J. W.) on the (Ustribu- 

 tion of heat in the spectrum, 104, 

 422 ; on the gases occludtd in me- 

 teoric iron, 311. 



Earth, on the phenomena of the ele- 

 vation and subsidence of the, 401. 



Edhuid (E.) on the nature of electri- 

 city, 81, 174. 



Elastic bodies, on the collision of, 

 476, 546. 



Elective attraction, researches on, 506. 



Electric jet in rarefied ga&es, on the, 

 and on its mechanical force, 149. 



spark, on the duration of the, 



316. 



Electrical experiment with an insu- 

 lated room, on an, 1 70. 



pyrometry, on, 80. 



Electricity, on the nature of, 81, 174; 

 on wave-theories of, 210; on the 

 action of, on gases, 470. 



Electrodynamics, on the theory of, 

 530. 



Electromagnet coil, on the maximum 

 magnetizing force of an, 414. 



Electrometer, on the measurement of 

 the intensity of cm-rents by the, 396. 



Endosmose, on the influence of pres- 

 sure m the phenomena of, 233. 



Exosmose, on the influence of pres- 

 sure in the phenomena of, 233. 



Eilter-pump, on an improved form of, 

 249. 



Fisher (Rev. O.) on the origin of the 

 phosphatic nodules of the Chalk of 

 Cambridgeshire, 543. 



Flames, on the electrical condition of 

 gas-, 153. 



Forces, on the hydrodynamical theory 

 of attractive and repulsive, 189. 



Fuchsine, on the anomalous disper- 

 sion exhibited by, 395. 



Gaiffe (M.) on a new galvanic pile, 

 320. 



Galvanic induction, on the pheno- 

 mena of, 174. 



pile, on a new, 320. 



Galvanometer, on a new lantern-, 2b. 



Galvanometers, differential, on, 161. 



Gaseous pressure, on Mr. Moon's 

 views on, 64, 101, 219. 



Gases, on the cooling of, 241, 457; 

 occluded in meteoric iron, on the, 

 311; on the action of electricity 

 on, 470. 



Gas-flames, on the electrical condi- 

 tion of, 153. 



Geological Societv, proceedings of the, 

 146, 232, 474," 541. 



Germpn silver, on the heat-conduct- 

 ing power of, 481. 



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

 position of water by zinc, 73 ; on 

 the action of oxygen on copper 

 nitrate in a state of tension, 139. 



Glaisher (J. W. L.) on some new facts 

 in the early history of logarithmic 

 tables, 291", 500. 



Gore (G.) on some properties of 

 liquefied anhydrous ammonia, 315. 



Heat, on the reflection of, 11; on the 

 distribution of, in the spectrum, 

 104; on the mechanical theory of, 

 117, 240, 365; light, and electri- 

 city, on wave-theories of, 210; on 

 a method of tracing the progress 

 and of determining the boundary of 

 a wave of conducted, 257 ; of ex- 

 pansion of solid bodies, on the, 

 544. 



Helmholtz (Prof.) on the theory of 



electrodynamics, 530. 

 Holdcn (Lieut. E. I.) on the spec- 

 trum of the aurora, 478. 



Houzeau (A.) on the instantaneous 

 oxidation of alcohol, 237- 



Hudson (Dr. H.) on wave-theories of 

 light, heat, and electricity, 210. 



Hutton (Capt. F. W.) on the pheno- 

 mena of the elevation and subsi- 

 dence of the surface of the earth, 

 401. 



Hydrocarbons, on the fluorescent re- 

 lations of certain solid, 345. 



Hydrogenium, on the specific heat of, 

 400. 



