CONTENTS OF VOL. XXV. 



(SIXTH SERIES). 



NUMBER CXLV.— JANUABY 1913. 



Page 



Lord Rayleigh : The Correction to the Length of Terminated 

 Rods in Electrical Problems 1 



Dr. N. Bohr on the Theory of the Decrease of A^elocity of 

 Moving Electrified Particles on passing through Matter . . 10 



Dr. S. A. Shorter on the Application of the Theory of 

 Chemical Potential to the Thermodynaruical Theory of 

 Solutions. — Part III. The Action of Gravity on a Solution. 

 The Solute Potential. Extension of the Theory 3] 



Mr. S. B. McLaren on the Theory of Radiation 43 



Mr. J. P. Dalton on the Energetics of the Induction Balance. 56 



Dr. W. C. McC. Lewis on Internal Pressure and Latent 

 Heat of Liquids 61 



Dr. S. J. Plimpton on the Recombination of Ions produced 

 by Rontgen Rays 65 



Prof. A. H. Gibson on the Stability of Flow of an Incom- 

 pressible Viscous Eluid 81 



Mr. P. F. Ward on the Transverse Vibrations of a Rod of 

 Varying Cross-Section 85 



Prof. F. Y. Edgeworth : A Variant Proof of the Distribution 

 of Velocities in a Molecular Chaos 106 



Dr. W. E. G. Swann on the Conduction of Heat along a Pipe 

 through which Gas is Plowing, in its Relation to Measure- 

 ments of the Specific Heats of Gases 109 



Dr. J. Robinson on the Photoelectric Properties of Thin 

 Eilms of Platinum. — II 115 



Mr. Henry Morphy on the Influence of Pressure on the 

 Surface Friction of Ice 133 



Dr. L. Silberstein on Quaternion ic Relativity . 135 



Prof. O. W. Richardson on the Asymmetric Emission of 

 Secondary Rays 144 



Prof. R. C. Tolman on Non-Newtonian Mechanics. — Some 

 Transformation Equations 150 



Mr. P. H. Ling on a Certain Integral of the Problem of 

 Three Bodies 157 



Mr. G. W. Todd : Further Experiments on the Mobility of 

 the Positive Ion at Low Pressures 163 



