INDEX. 



873 



Halsall (R.) on the carriers of the 

 negative thermionic current in a 

 vacuum, 735. 



Heat, on the conduction of, along a 

 pipe, 109; on the absorption of, 

 produced by the emission of ions 

 from hot bodies, 624. 



waves, on resonance experi- 

 ments with the longest, 440. 



Hevesy (Dr. G. von) on the valency 

 of the radio-elements, 390 ; on the 

 diffusion of uranium, 415. 



Hodgson (B.) on the temperature of 

 the cathode and anode in a 

 Geissler tube, 453. 



Hogley (C. E.) on the solubility of 

 the active deposit of thorium in 

 various solvents, 330. 



Houstoun (Dr. R. A.) on the relative 

 visibility of the different colours 

 of the spectrum, 715. 



Hughes (A. LI.) on the photoelectric 

 effect in some compounds, 332 ; 

 on a sensitive photoelectric cell, 

 679; on the velocities with which 

 photoelectrons are emitted from 

 matter, 683. 



Inductance, on measurements of, 520. 



Induction-balai.ce, on the energetics 

 of the, 56. 



Integral of the problem of three 

 bodie.-, on a certain, 157. 



Ionization produced by /3 and y rays 

 at high pressures, on the, 172; on 

 a relation between, by cathode 

 rays and certain chemical effects, 

 215 ; on the, produced by 

 heated salts, 370 ; on, by charged 

 particles, 803 ; on, in gases by 

 Rontgen and corpuscular radia- 

 tions, 832. 



Ions, on the recombination of, pro- 

 duced by Rontgen rays, 65 ; on 

 the mobility of positive, at low 

 pressures, 163 ; on the absorption 

 of heat produced by the emission 

 of, from hot bodies, 624. 



Ives (Dr. J. E.) on the absorption of 

 short electric waves by air and 

 water-vapour, 702. 



Jacot (E.) on a relation between 

 ionization by cathode rays and 

 certain chemical effects, 215. 



Joly (Prof. J.) on the apopho- 

 rometer, 301 ; on the age of 

 pleochroic haloes, 644; on the 

 temperature of sublimation, 856. 



Jones (Prof. 0. T.) on the pre- 

 Cambrian and Cambrian rocks of 

 Pembrokeshire, 197; on the geo- 

 logical structure of Central Wales, 

 198. 



Lake (P.) on the geology of Mynydd 

 Gader, 199. 



Latent heat of liquids, on the, 61. 



Lead, on the absorption of y rays by, 

 731. 



Lewis (Prof. E. P.) on the origin of 

 the bands in the spectrum of active 

 nitrogen, 826. 



Lewis (Dr. W. C. McC.) on internal 

 pressure and latent heat of liquids, 

 61. 



Li^ht, on the secondary emission of 

 elections under the influence of, 

 144. 



Ling (P.) on a certain integral of 

 the problem of three bodies, 157. 



Liquids, on internal pressure and 

 latent heat of, 61. 



Livens (G. H.) on rotational optical 

 activity of solutions, 817. 



Lodge (Sir 0.) on a dynamo for 

 maintaining electrical vibrations 

 of high frequency, 757. 



Lyle (Prof. T. P.) on an exact 

 mechanical analogy to the coupled 

 circuits used in wireless telegraph v, 

 567. 



McCoy (Prof. H. N.) on the chemical 

 properties and relative activities 

 of the radio-products of thorium, 

 333. 



Macdonald (Prof. H. M.) on the 

 electrical vibrations associated 

 with thin terminated conducting 

 rods, 427. 



McLaren (S. B.) on the theory of 

 radiation, 43. 



Marsden (E.) on the retardation 

 of a particles by metals, 184 ; on 

 the laws of deflexion of a particles 

 through large angles, 604. 



Martyn (G. II.) on the photographic 

 effect of X-rays and X-ray spectra, 

 296. 



Matley (Dr. C. A.) on the geology 

 of Bardsej' Island, 755. 



Mechanics, on non-Newtonian, 150. 



Mercury lines, on the satellites of 

 the, 443. 



vapour, on the selective dis- 

 persion of, at the 2536 line, 

 433. 



