CONTENTS OF VOL. XLVI1I. FIFTH SERIES. V 



NUMBER CCXCIL— SEPTEMBER. 



Page 

 Signor Quirino Majorana on the Contact Theory. (Parts 



I. and II.) '. 241 



Signor Quirino Majorana on the Contact Theory (Attraction 



of Unlike Metals).— Part III 255 



Mr. C. G. Lamb on the Distribution of Magnetic Induction 



in a Long Iron Bar 262 



Prof. J. A. Fleming, and Messrs. A. W. Asbton and H. J. 

 Tomlinson on the Magnetic Hysteresis of Cobalt. (Plates 



VII. & VIII.) . . 271 



Messrs. John Trowbridge, T. C. and I. C. Howe on the Explo- 

 sive Effect of Electrical Discharges 279 



Mr. J. Bose-Innes on the Batio of the Specific Heats of Air . 286 

 K. Tsuruta's Thermodynamic Notes (No. 1). — On the Alleged 



Sign of " Specific Heat of Saturated Ether Vapour " 288 



Mr. A. G. M. Michell on the Elastic Stability of Long Beams 



under Transverse Forces 298 



Notices respecting New Books : — 



Mr. 0. Heaviside's Electromagnetic Theory, Vol. II. . . 309 

 M. H. Poincare's La Thcorie de Maxwell et les Oscilla- 

 tions Hertziennes 313 



Proceedings of the Geological Society : — 



Mr. J. B. Dakyns on the Limestone-Knolls below Thorpe 



Eell, between Skiptonand Grassington in Craven .... 313 

 Mr. A. Vaughan Jennings on the Geology of the Davos 



District . 314 



Mr. P. B. Cowper Beed on the Lower Palaeozoic Bedded 



Bocks of the Waterford Coast 315 



Intelligence and Miscellaneous Articles : — 



Notes on the Zeeman Effect, by H. M. Beese 31 7 



A possible Mechanism of Magnetization, by J. J. Taudin 

 Chabot 319 



NUMBEB CCXCIIL— OCTOBEB. 



Lord Rayleigh's Investigations in Capillarity 321 



Dr. J. H. A'incent on the Photography of Ripples. — Fourth 



Paper. (Plates A 7 . & VI.) 338 



Prof. D. B. Brace on Achromatic Polarization and Differential 



Double Refraction . 345 



Prof. R. B. Owens on Thorium Badiation 360 



Lord Kelvin on the Application of Force within a Limited 

 Space, required to produce Spherical Solitary Waves, or 

 Trains of Periodic Waves, of both Species, Equivoluminal 

 and Irrotational, in an Elastic Solid 388 



