CONTENTS OF VOL. XXXIX. FIFTH SERIES. V 



Notices respecting New Books : — Page 



Mr. W. Crookes's Select Methods in Chemical Analysis 



(chiefly Inorganic) 305 



Mr. Claudius Kennedy's A Few Chapters in Astronomy. 307 



An Experiment with Solid' Carbonic Acid, by Prof. K. Prytz . 308 



NUMBEE CCXXXIX.— APEIL. 



Mr. George Udny Yule on the Passage of an Oscillator Wave- 

 train through a Plate of Conducting Dielectric 309 



Prof. A. W. Eiicker and Mr. E. Edser on the Objective Eeality 

 of Combination Tones 341 



Mr. H. N. Allen on Energy Movements in the Medium 

 separating Electrified or Gravitating Particles 357 



Mr. George Udny Yule on a Simple Eorm of Harmonic 

 Analyser - 367 



Mr. S. Skinner on the Clark Cell when producing a Current. 375 



Prof. A. Sadowsky on some Experiments with Alternating 

 Currents 377 



Notices respecting New Books : — 



Dr. Geikie's The Great Ice Age and its Eelation to the 

 Antiquity of Man 379 



Silvering Glass in the Cold, by MM. Auguste and Louis 

 Lumiere 387 



On the Glow-Discharge, by A. Herz 387 



Prize-question proposed by the Schnyder von Wartensee's 

 Foundation for Arts and Sciences, Zurich 388 



NUMBEE CCXL.— MAY. 



Prof. W. E. Ayrton and Mr. E. A. Medley on Tests of Glow- 

 Lamps, and Description of the Measuring Instruments 



employed 389 



Prof. D. J. Korteweg and Dr. G. de Vries on the Change of 

 Eorm of Long Waves advancing in a Eectangular Canal, 



and on a New Type of Long Stationary Waves 422 



Mr. S. Skinner on the Tin-Chromic Chloride Cell 444 



Dr. Charles V. Burton : Some Acoustical Experiments .... 447 



Mr. E. M. Deeley on Glacier- Grains 453 



Dr. Ladislas Natanson on the Kinetic Interpretation of the 



Dissipation Function 455 



Mr. John Evershed : Experiments on the Eadiation of Heated 



Gases. (Plate VII.) 460 



On the Eotational Coefficients of Thermal Conductivity in 

 Crystals, by M. Charles Soret 476 



