450 



INDEX. 



bustion process, 138 ; on the pro- 

 ducts of oxidation of wool, 356. 



Crookes (W.) on the illumination of 

 lines of molecular pressure, and the 

 trajectory of molecules, 57. 



Crookes's force, on the mechanical 

 theory of, 15, 179. 



Current-regulator, on an automatic, 

 71. 



Cyano-propionic acid, on the prepa- 

 ration and properties of, 356. 



Diffraction, on a new proposition in 

 the theory of, 51. 



Digestion, on the action of the bile 

 in, 301. 



Diopside rock, on an artificial, 133. 



Dufour (H.) on Bell's telephone, 222. 



Duter (E.) on a new phenomenon of 

 static electricity, 69. 



Electric boundary layers, on, 443. 



convection, on the magnetic 



effects of, 442. 



currents, on the transmission 



and distribution of energy by, 352 ; 

 of great strength, on methods of 

 measuring, 165. 



effluvium, on the, 447. 



light, on the theory of the, 29. 



quantity, on a new determina- 

 tion of the ratio of the electromag- 

 netic to the electrostatic unit of, 

 277. 



Electrical burner and blowpipe, on 

 an, 372. 



resistances, on high, 162. 



Electricity, on the excitation of, at 

 the contact of solids and gases, 1 ; 

 on a new phenomenon of static, 69. 



Electrochemical actions under pres- 

 sure, on, 148. 



Electromagnets in telegraphy, note 

 on, 143. 



Emulsions, on the formation of, 301. 



Energy, on the dissipation of, 344; 

 on the transmission and distribu- 

 tion of, by the electric current, 352. 



Enstatite rock in South Africa, on 

 the occurrence of a pure and mas- 

 sive, 135. 



Europe, on the physical state of Cen- 

 tral, during the tertiary period, 72. 



Fisher (0.) on the thermal conditions 

 and on the stratification of the ant- 

 arctic ice, 381. 



Fitzgerald (G. F.) on the mechanical 

 theory of Crookes's force, 15, 179; 

 on the electromagnetic theorv of 



the reflection and refraction of 

 light, 216. 



Flames, on pure tones from sound- 

 ing, 149. 



Fluorescent substances, on two new, 

 144. 



Frohlich (J.) on a new proposition 

 in the theory of diffraction, 51. 



Gallium, on the specific heats and 

 heat of fusion of, 75. 



Galvanic deposits, on the pressures 

 exerted by, 375. 



Galvanometer, on a new absolute, 

 274. 



Gas batteries, on the seat of the elec- 

 tromotive force in, 1. 



Gases, on the excitation of electricity 

 at the contact of solids and, 1 ; on 

 the spectra of mixed, 77, 90 ; or 

 the luminosity of, through elec- 

 trical discharges, 248 ; on the elec- 

 trical luminous phenomena of ra- 

 refied, 297. 



Geological Society, proceedings of 

 the, 66, 142, 215, 291, 367, 441. 



Glacial erosion of lake-basins, on the 

 theory of, 240. 



Glaisher (J. W. L.) on a property of 

 vulgar fractions, 321. 



Glass, on the comportment of unan- 

 nealed, under the polariscope, 39 ; 

 on the electrical perforation of, 374. 



Goniometer, on a horizontal, 136. 



Harmonic orbits, on, 224. 



Heaviside (0.) on electromagnets in 

 telegraphy, 143. 



Helmholtz (Prof.) on electric boun- 

 dary layers, 443. 



Hennessy (Prof. H.) on the figure of 



. the planet Mars, 67. 



Hodges (N. D. C.) on a new absolute 

 galvanometer, 274. 



Hopkinson (Dr. J.) on high electrical 

 resistances, 162. 



Hospitalier (M.) on an automatic 

 current-regulator, 71. 



Ice, on the modulus of cohesion of, 

 240 ; on the thermal conditions and 

 on the stratification of the ant- 

 arctic, 381. 



Iodides, on the action of light upon 

 the soluble, 393. 



Jacques (W.W.) on the effect of the 

 motion of the air within an audito- 

 rium upon its acoustic qualities, 

 111 ; on the velocity of very loud 

 sounds, 219. 



