

CONTENTS OF VOL. XXX. 



(SIXTH SERIES). 



>** 



NUMBER CLXXV.— JULY 1915. 



Pago 

 Dr. Of. C. Simpson on the Electricity of Atmospheric Pre- 

 cipitation 1 



Mr. E. M. Deeley on the Theory of the Winds 13 



Messrs. 0. C. Paterson and B. P. Dudding on the Estima- 

 tion of High Temperatures by the Method of Colour 



Identity 34 



Messrs. 0. C. Paterson and B. P. Dudding on the Unit of 



Candle-power in White Light 63 



Dr. C. V. Burton on the Scattering and Regular Reflexion of 



Light by Gas Molecules.— Part II 87 



Mr. G. H. Livens on the Number of Electrons concerned in 



Metallic Conduction 105 



Mr. G. H. Liveus on the Electron Theory of Metallic Con- 

 duction.— Ill 112 



Prof. W. M. Thornton on the Electric Strength of Solid 



Dielectrics 124 



Prof. P. J. Daniell on the Coefficient of End-Correction. — 



Part 1 137 



Mr. Gr. von Kaufmann on the General Theory of Corre- 

 sponding States, and the Thermodynamic State-Equation . 146 

 Dr. L. Silberstein on Radiation from an Electric Source. 



(Second Paper) 163 



Lord Eayleigh on the Resistance experienced by Small Plates 



exposed to a Stream of Fluid 179 



Mr. T. Harris on the Distribution of Electric Eorce in the 



Discharge at Low Pressures 182 



Sir J. J. Thomson on Conduction of Electricity through Metals. 192 

 Mr. IT. Pealing on an Anomalous Variation of the Rigidity 



of Phosphor Bronze when in the form of Strips 203 



Notices respecting New Books : — 



Dr. C. G. Knott's Physics, an elementary text-book for 



University Classes 208 



Dr. H. Stanley Allen's Photoelectricity : The Liberation 

 of Electrons by Light 208 



