580 



I X D E X. 



modulus for wires, and its relation 

 to changes of temperature and 

 magnetization, 539. 



Skv, on the origin of the blue of the, 

 375. 



Smith (A. W.) on methods of mea- 

 suring the energy dissipated in 

 condensers, 19, 222. 



Sodium vapour, application of Sell- 

 meier's dynamical theorem to the 

 daik lines D i? D 2 produced by, 302. 



Solids, on an apparatus for the de- 

 termination of the rate of diffusion 

 of, dissolved in liquids, 530. 



Solitary plane waves, on the reflexion 

 and refraction of, 179. 



Sound, on the propagation of, 308. 



Spectral lines, magnetic perturba- 

 tions of the, 165. 



Steel wire, on the changes in the di- 

 mensions of, by magnetization, 539. 



Stoney (G.) on the quantity of 

 oxygen in the atmosphere com- 

 pared with that in the earth's 

 crust, 565. 



Stoney (Dr. G. J.) on denudation and 

 deposition, 372, 557. 



Sutherland (W.) on the relative 

 motion of the earth and asther, 

 252 ; on cathode, Leiiard, and 

 Rent gen rays, 269. 



Thermometry, on platinum, 191. 



Thompson (B.) on the geology of the 

 Great Centra] Railway, 327. 



Thomson (J.) on the geology of 

 Southern Morocco, 576. 



Thomson (Prof. J. J.) on the con- 

 duction of electricity through 

 gases by charged ions, 253 ; on the 

 cathode rays, 415. 



Thorium radiation, on, 122. 



Tornadoes, experiments on artificial, 

 349. 



Uranium radiation and the electrical 

 conduction produced by it, on, 109. 



Vibration, on the frequency of, of a 

 system in its gravest mode, 566. 



Vibrations, on longitudinal, in solid 

 and hollow cylinders, 333. 



Water, on the absorption of, in hot 

 glass, 104, 461. 



Waves, on the reflexion and refrac- 

 tion of solitary plane, 179 ; on 

 electrical, in sea-water, 413 ; on the 

 application of force required to 

 produce spherical solitary, or trains 

 of periodic, in an elastic solid, 480. 



Wills (A. P.) on the susceptibility 

 of dianiagnetic and weakly mag- 

 netic substances, 164. 



Wires, on the propagation of damped 

 electrical oscillations along parallel, 

 296 ; on the equivalent resistance 

 and inductance of, to an oscillatory 

 discharge, 433 ; on the application 

 of an interference-method to the 

 investigation of Young's modulus 

 for, and on the change in dimen- 

 sions of iron and steel, by mag- 

 netization, 539. 



Wood (R. W.) on artificial mirages' 

 and tornadoes, 349; on an appli- 

 cation of the diffraction- grating to 

 colour-photography, 368. 



Young (Dr. S.) on the thermal pro- 

 perties of normal pentane, 353. 



Young's modulus for wires, on the 

 application of an interference - 

 method to the investigation of, 

 539. 



END OF THE FORTY-SEVENTH VOLUME. 



Printed by Taylor and Francis, Eed Lion Court, Fleet Street. 



