VI CONTENTS OF VOL. XXXIII. — -FIFTH SERIES. 



Page 

 Proceedings of the Geological Society : — 



Eev. J. F. Blake on the Eocks mapped as Cambrian in 



Caernarvonshire 384 



Mr. W. Shone on the Subterranean Denudation of the 

 Glacial Drift, a probable cause of Submerged Peat and 



Forest-beds 384 



Mr. A. C. Nicholson on High Level-Glacial Gravels, 



Gloppa, Cyrn-y-bwch, near Oswestry 385 



Mr. H. W. Monckton on the Gravels on the South of the 

 Thames from Guildford to Newbury ; and on the Bag- 

 shot Beds of Bagshot Heath 385 



Mr. A. J. Jukes-Browne and Prof. J. B. Harrison on 



the Geology of Barbados 386 



On the Intensity of the Eadiation of Gas under the Influence 

 of the Electrical Discharge : preliminary notice by K. 



Angstrom 387 



On the Eepulsive Force of Eadiating Bodies, by Peter Lebedew 391 



An Electrolytic Experiment, by Leo Arons 395 



On a Method of Determining Electromagnetic Eadiation, by 

 Prof. Klemencic 396 



NUMBEE CCIV.— MAY. 



Mr. E. C. Nichols on the Eesistances to Transverse Strain in 

 Beams 397 



Mr. M. F. FitzGerald on the Flexure of Long Pillars under 

 their own Weight 428 



Mr. C. Barus on the Change of Heat Conductivity on passing 

 isothermally from Solid to Liquid 431 



Prof. J. Perry on Choking Coils 433 



Mr. S. TJ. Pickering on the Eecognition of Changes of Curva- 

 ture by Means of a Flexible Lath 436 



Lord Kelvin on a Decisive Test-case disproving the Maxwell- 

 Boltzmann Doctrine regarding Distribution of Kinetic 

 Energy 466 



Lord Eayleigh on the Theory of Surface Forces. — III. Effect 

 of Slight Contaminations 468 



Mr. E. E. Hughes on some Properties of Dried Hydrogen 

 Sulphide Gas 471 



Notices respecting New Books : — 



Dr. "Watts's Index of Spectra, Appendix C 475 



On the Influence of Pressure on the Viscosity of Liquids, by 

 E. Cohen 476 



