'66 



INDE X. 



Ferromagnetic substances, on the 

 change of elasticity of, by mag- 

 netization, 36, 

 Field at the point of an electrified 



needle, on the, 542. 

 Films, on the formation of liquid, 



96. 

 Flame-tube, experiments with the, 



627. 

 Fog-chamber, on the efficiency of the 



plug-cock, 357. 

 Fry (Dr. H. S.) on the appreciation 

 of difference of phase of sound- 

 waves, 452. 

 Garrett (A. E.) on electrical con- 

 ductivity produced by heating 

 salts, 728. 

 Gas, on convective equilibrium of 



a spherical mass of, 459. 

 Gas-engine temperatures, on the 



measurement of, 84. 

 Gases, on the diurnal periodicity of 

 the spontaneous ionization of, 265 ; 

 on the ionization of various, by 

 the a particles, 333. 

 Geological Society, proceedings of 



the, 287, 647, 761. 

 Gray (Prof. A.) on the attraction of 

 ellipsoidal shells and of solid 

 ellipsoids, 385. 

 Hahn (Dr. 0.) onradioactinium, 165. 

 Halos, on pleoehroie, 381. 

 Hancock (Prof. E. L.) on the re- 

 covery of steel from overstrain, 

 688. 

 Harrison (Prof. J. B.) on the coral- 

 rocks of Barbados, 763. 

 Holt (A., jr.) on the decomposition 

 of water vapour in contact with 

 hot platinum wire, 630. 

 Honda (K.) on the change of elastic 

 constants of ferromagnetic sub- 

 stances by magnetization, 36. 

 Hopkinson"(Prof. B.) on the mea- 

 surement of gas-engine tempe- 

 ratures, 84. 

 Horwood (0. B.) on the occurrence 

 of pseudomorphous pebbles of 

 pyrites at the Crown-Beef mine, 

 655. 

 Hull (Prof. E.) on the artesian 



boring at Lincoln, 648. 

 Hydrogen, chemical effects of the 

 "electrical discharge in rarefied, 

 and oxygen, 289. 

 Inversion temperature of the Joule- 

 Kelvin effect, on the, 722. 



Ionization, on the, of the atmosphere 

 over the ocean, 248; on the di- 

 urnal periodicity of the sponta- 

 neous, of air and other gases, 265 ; 

 on the, of various gases by the a 

 particles, 333; on the effect of 

 change of temperature on sponta- 

 neous, 614. 

 Iron, on the change of elasticity of, 

 by magnetization, 47 ; on " the 

 behaviour of, under small periodic 

 magnetizing forces, 232; on the 

 fatigue of, subjected to Bontgen 

 radiation, 708. 

 Isopiestic temperatures of saturated 



vapours, on the, 724. 

 Jacques carbon cell, on the, 181. 

 Jeans (Prof. J. H.) on the thermo- 

 dynamical theory of radiation, 285. 

 Jolv (Prof. J.) on pleoehroie halos, 



381. 

 Joule-Kelvin effect, on the tempera- 

 ture of inversion of the, 727. 

 Jukes-Browne (A. T.) on the origin 

 and age of the plateaus round 

 Torquay, 653. 

 Kelvin (Lord) on the initiation of 

 deep-sea waves of three classes, 1 ; 

 an attempt to explain the radio- 

 activity of radium, 313. 

 King (F. A.) on experiments with 

 vacuum gold-leaf electroscopes on 

 the mechanical temperature effects 

 in rarefied gases, 747. 

 Kirkby (Bev. P. J.) on chemical 

 effects of the electrical discharge 

 in rarefied hvdrogen and oxvgen, 

 289. 

 Kowalski (Dr. J. de), applications of 

 the theory of electrons to the 

 theory of phosphorescence, 622. 

 Lamplugh (G. W.) on the geology 



of the Zambezi basin, 651. 

 Lead, on the fatigue of, subjected to 



Bontgen radiation, 708. 

 Liquid dielectrics, on spark poten- 

 tials in, 277. 



films, on the formation of, 96. 



Lodge (Sir O.) on the density of the 



ffither, 488, 727. 

 Lowry (Dr. T. M.) on osmotic pres- 

 sure from the standpoint of the 

 kinetic theory, 552. 

 Lyle (Prof. T. B.) on transformer 



indicator diagrams, 468. 

 Magnetic field of circular, cylindrical, 

 and helical currents, on the, 420. 



