'92 



1 N D E X. 



light transmitted by very narrow, 

 350. 



Soddy (F.) on the relation between 

 uranium and radium, 272 ; on a 

 gas generated from aluminium 

 electrodes, 779. 



Sodium vapour, on the magnetic 

 rotation of, 145. 



.Solutions, on ionization in, 1. 



Sound, on the passage of, through 

 narrow slits, 153 ; on the scattering 

 of, by spheroids and disks, 364. 



Spectra, on a remarkable ca^e of 

 diffraction, 60 ; on a simple treat- 

 ment of the secondary maxima of 

 grating, 477 ; on the gradual 

 modification of the first linear, of 

 mercury, 784. 



Spectral Hues, on a theory of the 

 displacement of, bv pressure, 557." 



Spencer (Prof. J. W. W.) on the 

 age of Niagara Falls, 214. 



Spheroids, on the scattering of 

 sound by, 364 •' on magnetic in- 

 duction in, 455. 



Spraying, on ionization by, 382. 



Steel, on the effect of stress on mag- 

 netization in, 72 ; on the super- 

 position of mechanical vibrations 

 upon magnetization in, 468. 



Stephenson (A.) on the forcing of 

 oscillations by disturbances of 

 different frequencies, 115 ; on 

 expansion in Bessel's functions, 

 547; on the stability of the steady 

 state of forced oscillation, 707. 



Stress, on the effect of, on mag- 

 netization, 6-). 



Surface forces, on the theory of, 509. 



— ■ — ■ temperature of the plants, on a 

 general method for evaluating the, 

 161, 749. 



tension of liquids, on the curva- 

 ture method of determining the, 

 591. 



Sutherland (W.) on ionization in 

 solutions and two new types of 

 viscosity, 1. 



Terada (T.) on the effect of stress 

 on magnetization and its relations 

 to the change of elastic constants 

 by magnetization, 65. 



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

 trical origin of the radiation from 

 hot bodies, 217; on rays of positive 

 electricity, 295, 359. 



Ultra-violet light, on the photo- 

 electric effect of, 297. 



Unit-stere theory, on the, 324. 



Upson (W. L.) on the electric arc, 

 126. 



Uranium and radium, on the relation 

 between, 272. 



Vapours, on the secondary Rontgen 

 radiation from, 653. 



Vibration galvanometer, on the 

 measurement of mutual induct- 

 ance by a, 494. 



Vibrations, on the effect of rotatory 

 inertia on the, of bars, 35 ; on the 

 superposition of mechanical, upon 

 magnetization, 468 ; on the lateral, 

 of bars, 578. 



Viscosity, on two new types of, 1. 



Wien (Prof. W.) on rays of positive 

 electricity, 212. 



Wilson (W.j on the rate of decay of. 

 the active deposit from radium, 

 404. 



Winchester (G.) on the influence of 

 temperature upon photo-electric 

 effects, and on the" photo-electric 

 sensitiveness of the metals, 188. 



Wireless telegraphy, on magnetic 

 oscillators as radiators in, 677. 



Wood (Prof. R'. W.) on the mag- 

 netic rotation of sodium vapour at 

 the 1) lines, 145 ; on a simple 

 treatment of the secondary 

 maxima of grating spectra, 477. 



X-rays, on secondary, and the atomic 

 weight of nickel, 408 ; on second- 

 ary, in air, 604. 



Zinc plate, on the photo-electric 

 effect of ultra-violet light on a, 

 297. 



END OF THE FOURTEENTH VOLUME. 



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



