CONTENTS OF VOL. V. 



(SIXTH SERIES). 



NUMBER XXV.— JANUARY 1903. 



Page 

 Prof. A. Battelli and Mr. L. Magri on Oscillatory Discharges. 1 

 Dr. Harold Pender on the Magnetic Effect of Electrical Con- 

 vection. — II 34 



Prof. H. L. Callendar on the Thermodynainical Correction of 



the Gas-Thermometer 48 



Prof .E. Rutherford on Excited Radioactivity and the Method of 



its Transmission 95 



Mr. R. L. Wills on the Effect of Temperature on the Hys- 

 teresis Loss in Iron 117 



Mr. S. H. Burbury on the Conditions necessary for Equipar- 



tition of Energy 134 



Lord Rayleigh on the Theory of the Eortnightly Tide 136 



Dr. Louis Lownds on the Thermomagnetic and Related 



Properties of Crystalline Bismuth . 141 



Prof. John Trowbridge on the Spectra of Hydrogen, and Re- 



A r ersed Lines in the Spectra of Gases 153 



Dr. E. W. Marehant on a Graphical Method of Determining 

 the Nature of the Oscillatory Discharge from a Condenser 



through a Coil of Variable Inductance 155 



Prof. D. B. Brace on a Sensitive-strip Spectropolariscope . , 161 

 Notices respecting New Books : — 



Dr. Alois Lanner's Naturlehre. 170 



Proceedings of the Geological Society: — 



Prof. W. B. Dawkins on the Red Sandstone-Rocks of 

 Peel (I. of Man), and on the Carboniferous, Permian, 

 and Triassic Rocks under the Glacial Drift in the 



North of the Isle of Man 170 



Dr. J. S. Flett on the Ash that fell on Barbados, after 



the Eruption at St. Vincent 171 



Dr. C. Callaway on the Plutonic Complex of Central 



Anglesey 172 



Prof. T. G. Bonney on Alpine A^alleys in Relation to 



Glaciers 172 



Prof. E. J. Garwood on the Origin of some " Hanging 

 Valleys " in the Alps and Himalaya 173 



