IV CONTENTS OF VOL. XLVII. FIFTH SERIES. 



Page 



Lord Kelvin on the .Reflexion and Refraction of Solitary Plane 

 Waves at a Plane Interface between two Isotropic Elastic 

 Medinms— Fluid, Solid, or Ether 179 



Prof. H. L. CalleDdar : Notes on Platinum Thermometry . . 191 



Messrs. Edward B. Rosa and Arthur W. Smith on a Calori- 

 metric Determination of Energy dissipated in Condensers . 222 



Prof. Karl Pearson on certain Properties of the Hyper- 

 geometrical Series, and on the fitting of such Series to 

 Observation Polygons in the Theory ot Chance 236 



Lord Rayleigh on James Bernoulli's Theorem in Probabilities . 246 



Notices respecting New Books : — 



Drs, G. E. Eisher and I. J. Schwatt's Textbook of Algebra 

 with Exercises for Secondary Schools and Colleges . . 251 



Relative Motion of the Earth and JEther, by "William 

 Sutherland 252 



NUMBER CCLXXXVI.— MARCH. 



Prof. J. J. Thomson on the Theory of the Conduction of 



Electricity through Gases by Charged Ions 253 



Mr. William Sutherland on Cathode, Lenard, and Rontgen 



Rays 269 



Dr. R. A. Lehfeldt on Properties of Liquid Mixtures.— 



Part III. Partially Miscible Liquids 284 



Mr. W. B. Morton on the Propagation of Damped Electrical 



Oscillations along Parallel Wires 296 



Lord Kelvin on the Application of Sellmeier's Dynamical 

 Theory to the Dark Lines D,, D 2 produced by Sodium 



Vapour " 302 



Lord Rayleigh on the Cooling of Air by Radiation and Con- 

 duction, and on the Propagation of Sound 308 



Lord Rayleigh on the Conduction of Heat in a Spherical 



Mass of Air confined by Walls at a Constant Temperature. 314 

 Notices respecting New Books : — 



Dr. D. A. Murray's Elementary Course in the Integral 



Calculus ." 325 



Proceedings of the Geological Society : — 



Mr. J. E. Marr on a Conglomerate near Melmerby 



(Cumberland) , 326 



Mr. Beeby Thompson on the Geology of the Great 



Central Railway, Rugby to Catesby . . , 327 



Prof. T. T. Groom on the Geological Structure of the 

 Southern Malverns and of the adjacent District to 

 the West 327 



