﻿CONTENTS OF VOL. XLIV. SIXTH SERIES. V 



Page 



Dr. Norman Campbell and Mr. 13. P. Dudding on the Measurement 

 of Light 577 



Mr. D. L. llammick on Latent Heats of Vaporization and 

 Expansion 590 



The late William Gordon Brown on the Faraday-Tube Theory of 

 Electro-Magnetism , . 594 



Mr. B. A. M. Cavanagh ou Molecular Thermodynamics. Ill 610 



Prof. A. W. Porter and Mr. J. J. Hedges on the Law of Distribution 

 of Particles in Colloidal Suspensions, with Special Reference to 

 Perrin's Investigations , (541 



Mr. St. Landau-Ziemecki on the Emission Spectrum of Monatomic 

 Iodine Vapour 651 



NUMBER COLXII.— OCTOBER. 



Sir J. J. Tuomson : Further Studies on the Electron Theory of 



Solids, The Compressibilities ot a Divalent Metal and of the 



Diamond. Electric and Thermal Conductivities of Metals 657 



Dr. G. H. Henderson on the Decrease of Energy of ol Particles on 



passing through Matter 680 



Mr. D. C. Henry on a Kinetic Theory of Adsorption 689 



Prof. S. R. Milner on Electromagnetic Lines and Tubes 705 



Mr. A. Bramley on Radiation 720 



Mr. G. Breit on the Effective Capacity of a Pancake Coil 729 



Prof. F. E. TIackett on the Relativity-Contraction in a Rotating 



Shaft moving with Uniform Speed along its Axis 740 



Dr. T. J. Baker on Breath Figures 752 



-Mr. A. Sellerio on the Repulsive Effect upon the Poles of the 



Electric Arc 765 



Mr. B. B. Baker on the Path of an Electron in the Neighbourhood 



of an Atom 777 



Prof. A. W. Porter and Mr. R. E. Gibbs on the Theory of Freezing 



Mixtures , . 787 



NUMBER CCLXIII.— NOVEMBER. 



Mr. G. Shearer on the Emission of Elections by X-Rays 793 



Mr. A. J. Saxton on Impact Ionization by Low-Speed Positive 



H-Ions in Hydrogen , 809 



Messrs. C. G. Darwin and R. i\. Fowler on the Partition of Energy. 



— Part II. Statistical Principles and Thermodynamics 823 



Mr. J. H. Van Vleck on the normal Helium Atom and its relation 



to the Quantum Theory 842 



Mr. G. A. Tomlinson on the Use of a Triode Valve in registering 



Electrical Contacts 870 



.Mr. E. A. Milne on Radiative Equilibrium : the Insolation of an 



Atmosphere 872 



Dr. S. C. Bradford on the Molecular Theory of Solution. II 897 



Mr. R. A. Mallet on the Failure of the Reciprocitv Law in 



Photography 904 



Me-srs. R. W. Rolens, J. II. Smith, and S. S. Richardson on 



Magnetic Rotatory Dispei s'on of certain Paramagnetic Solutions. 912 



