CONTENTS OF VOL. XLIV. FIFTH SERIES. Vll 



Tage 

 Profs. E. Wiedemann and H. Ebert's Physikalisches 

 Praktikum mit besonderer Beriicksichtigung auf phy- 



sikalisch-chemische Methoden 441. 



Proceedings of the Geological Society: — 



Messrs. Newton and Teall's Notes on a Collection of 

 Eocks and Fossils from Franz Josef Land, made by 

 the Jackson-Harmsworth Expedition during 1894-96. 442 

 Mr. S. S. Buckmau on Deposits of the Bajocian Age in 



the North Cotteswolds.— I. The Cleeve Hill Platean . 443 

 Mr. D. Woolacott on an Explanation of the Claxhengh 



Section (Co. Durham) 443 



Hertz Waves and Metallic Enclosures, by Prof. O. J. Lodge . 444 

 On the Viscosity of Insulating Liquids in a Constant Electrical 

 Field, by G. Quincke . . .' 444 



NUMBEE CCLXXL— DECEMBEE. 



Mr. J. D. Hamilton Dickson on Platinum Temperatures .... 445 

 Dr. Meyer Wildermann on Eeal and Apparent Ereezing- 



Points and the Ereezing-Point Methods 459 



Prof. C. Barus oh the Secular Softening of Cold Hard Steel, 



with Eemarks on Electrical Standards 486 



Mr. William Sutherland on the Causes of Osmotic Pressure 



and of the Simplicity of the Laws of Dilute Solutions .... 493 

 Mr, J. E. Almy on Accidental Double Eefraction in Liquids . 499 

 Mr. J. Larmor on the Theory of the Magnetic Influence on 



Spectra ; and on the Eadiation from moving Ions 503 



Mr. W. M. Mordey on the External Eield of Helically 



Magnetized Eings 513 



Notices respecting New Books : — 



Prof. Mendeleeffs Principles of Chemistry. Translated 

 by Gi Kameusky, A.E.S.M. Edited by T. A. Lawson, 

 B.Sc, Ph.D .514 



Index 516 



