820 



INDEX. 



Daniell (Prof. P. J.) on the co- 

 efficient of end-correction, 137, 

 248 ; on the rotation of elastic 

 bodies and the principle of re- 

 lativity, 754. 



Dearie (K. 0.) on the infra-red 

 emission spectrum of the mercury 

 arc, 683. 



Deeley (H. M.) on the theory of the 

 winds, 13. 



Delta radiation, on the, emitted by 

 zinc bombarded bv alpha rays, 

 491. 



Diamond, on the construction of the, 

 with theoretical carbon atoms, 

 257. < 



Dielectrics, on the electric strength 

 of solid, 124. 



Drop-weight method for determining 

 surface-tensions, on the, 632. 



Dudding (B. P.) on the estimation 

 of high temperatures by the method 

 of colour identity, 34 ; on the unit 

 of candle-power in white light, 

 63. 



Dumeld (Prof. W. G.) on the arc 

 and spark spectra of nickel pro- 

 duced under pressure, 385. 



Dynamical system, on a method of 

 rinding tlie periods and coeffi- 

 cients of damping of a vibrating, 

 780. 



Edwards (E.) on the ultra-violet 

 spectrum of elementary silicon, 

 482 ; on the absorption spectra of v 

 mercury, cadmium, and zinc 

 vapours, 695. 



Elastic bodies, on the rotation of, 

 and the principle of relativity, 

 754. 



Electric discharge, on the distribu- 

 tion of electric force in the, at low 

 pressures, 182. 



field, on the effect of an, on the 



emission lines of solids, 316 ; on 

 the critical, at a discharging point, 

 637. 



source, on radiation from an, 



163. 



strength, on the, of solid 



dielectrics, 124. 



Electricity, on the, of atmospheric 

 precipitation, 1 ; on the conduc- 

 tion of, through metals, 192 ; on 

 the steady flow of, under the 

 exponential potential e- kr /r, 568. 



Electrified particles, on the decrease 

 of velocity of swiftly moving, in 

 passing through matter, 581. 



Electromagnetic mass, on mutual, 

 370, 659. 



Electron theory, on the, of metallic 

 conduction, 287, 549 ; on the, ot 

 the optical properties of metals, 

 434 ; on the, of the Hall effect 

 and allied phenomena, 526 ; on 

 the, in organic chemistry, 665. 



Electrons, on the number of, con- 

 cerned in metallic conduction, 

 105 ; on the ionization and radia- 

 tion of gas molecules due to col- 

 lision with, 244 ; on the velocity 

 of, expelled by X rays, 745. 



Electroscope, on the Zeleny, 381. 



Electrostatics, on problems in, 

 568. 



Emission lines of solids, on the effect 

 of electric and magnetic fields on 

 the, 316. 



End-correction, on the coefficient ot, 

 137, 248. 



Energy relations involved in the 

 formation of complex atoms, on 

 the, 723. 



Explosion, on the total radiation 

 from a gaseous, 383. 



Ferguson (Dr. A.) on the drop- 

 weight method for determining 

 surface-tensions, 632. 



Fluid, on the resistance experienced 

 by small plates exposed to a stream 

 of, 179 ; on the motion of friction- 

 less, in a rotating enclosure, 284 ; 

 on the stability of the simple 

 shearing motion of a viscous in- 

 compressible, 329. 



Fluorescence, on the, produced by 

 ultra-Schumann rays, 449 ; on 

 light absorption and, 510. 



Found (C. G.J on the delta radiation 

 emitted by zinc when bombarded 

 by alpha rays, 491. 



Gamma rays, on the excitation of, 

 by beta rays, 220. 



Gas molecules, on the scattering and 

 regular reflexion of light by, 87 ; 

 on the ionization and radiation of, 

 due to collision with electrons, 

 244 -, experimental determination 

 of the law of reflexion of, 300. 



Gaseous explosion, on the total 

 radiation from a, 383. 



