'0 



INDEX. 



Force;, on the frequency ranges of 

 non-generating, 164. 



Frictional electricity, on, 457. 



Gamma rays, on the secondary rays 

 excited in aluminium by, 145 ; 

 on the ionization produced by, 

 219 ; on secondary rays induced 

 by the, from radium, 314 ; on 

 secondary, 423. 



Gases, on the molecular and other 

 constants of the inactive, 795. 



Geological Society, proceedings of 

 the, 226, 332, 769. 



Gibbs's theory of surface-concen- 

 tration, on, 466. 



Gibson (A. H.) on the resistance to 

 the flow of air through a pipe. 389. 



Glass, on the absorption of the 

 8 rays by, 175. 



Glasson (J. L.) on a want of sym- 

 metry shown by secondary X-rays, 

 855.' 



Grating spectrum of radium emana- 

 tion, on the, 202, 656. 



Gravitation, on a modified theory 

 of, 71. 



Greenhouse theory, note on the, 319. 



Helium, on the molecular constants 

 of, 795. 



Hitchcock (F. L.) on the double 

 nature of nabla, 113. 



Hogley (C. F.) on the secondary 

 spectrum of hydrogen, 581. 



Holt (A,, jr.) on the dissociation of 

 water vapour, 715. 



Hosking, R., on the viscosity of 

 water, 502. 



Houstoun (Dr. R. A.) on the damp- 

 ing of long waves in a rectangular 

 trough, 154 ; on the transverse 

 oscillations of a canal of circular 

 section, 325. 



Huygens's secondary waves, on, 204. 



Hvdrogen, on the secondary spec- 

 trum of, 581, 854. 



Impulsive motion of an electrified 

 sphere, on the, 43. 



Inductance, on the, of two parallel 

 wires, 255. 



Induction currents, on the applica- 

 tion of the electron theory to, 706. 



Ionization, on the effect of pressure 

 on, 216 : on the, produced by 

 y rays, 219. 



Ions, on the kinetic energy of the 

 positive, emitted by hot platinum, 

 355. 



Jeans (Prof. J. H.) on temperature- 

 radiation and the partition of 

 energy in continuous media, 229 ; 

 on the motion of electrons in 

 solids, 773. 



Joly (Prof. J.) on the distribution 

 of thorium in the earth's surface 

 materials, 760. 



Jones (Prof. E. T.) on electrical 

 oscillations in coupled circuits, 28. 



Jukes-Browne (A. J.) on the Bovey 

 deposits, 772. 



Kirchhoff's law, on, 781. 



Krypton, on the molecular constants 

 of; 795. 



Lead, on the absorption and de- 

 flexion of 8 rays by, 136 ; on the 

 coefficient of viscous traction of 

 alloys of, 192. 



Lehfeldt (Dr. R. A.) on the treat- 

 ment of electrodynamics, 275. 



Lewis (W. C. McC.) on Gibbs's 

 theory of surface-concentration, 



4:66. 



Light, on the absorption of ultra- 

 violet, by dilute solutions, 710. 



Liquid films, on very thin, and very 

 small liquid drops, 333. 



Liquids, on the absorption of 8 rays 

 by, 180. 



Lithium chloride solutions, on the 

 viscosity of, 519. 



McAulay (Prof. A.) on elastic solid 

 sether, 553. 



Madsen (Dr. J. P. V.) on secondary 

 y radiation, 423. 



Magnetism of basalt, on the, 572 ; 

 on terrestrial, 655. 



Magnets, on the self-demagnetizing 

 factor of bar, 729. 



Main, on the effective resistance and 

 inductance of a concentric, 524. 



Makower (W.) on the number and 

 the absorption by matter of the 

 8 particles emitted by radium, 171. 



Mercury, on the action between, and 

 acids* 833. 



Metals and acids, on the action 

 between, 833. 



Molecular diameters, on, 320; at- 

 traction, on the electric origin of, 

 657. 



Morton (Prof. W. B.) on the amount 

 of water in a cloud formed by ex- 

 pansion of moist air, 190. 



Moss (E. W.) on the self-demag- 

 netizing factor of bar magnets, 729. 



