CONTENTS OF VOL. XXXVI. SIXTH SERIES. V 



Page 



Prof. G. A. Schott on Bohr's Hypothesis of Stationary States 

 of Motion and the Eadiation from an accelerated Electron. 243 



Prof. A. Anderson on Kirehhoff's Formulation of the Prin- 

 ciple of Huygens 261 



Dr. M. Wolfke on a New Secondary Eadiation of Positive 

 Eays 270 



Prof. A. Anderson on the Coefficient of Potential of Two 

 Conducting Spheres 271 



Major E. W. Wood on the Scattering of Light by Air 

 Molecules 272 



Mr. W. G. Bickley on some Two-Dimensional Potential 

 Problems connected with the Circular Arc. II 273 



Proceedings of the Geological Society : — 



Mr. J. P. N. Green on the Igneous Eocks of the Lake 

 District . « 279 



NUMBEE CCXIV.— OCTOBEE. 



Mr. G. A. Hemsalech on the Origin of the Line Spectrum 

 emitted by Iron Vapour in an Electric Tube Eesistance 



Purnace at Temperatures above 2500° C 281 



Dr. J . Prescott on the Buckling of Deep Beams 2&7 



Lord Eayleigh : A proposed Hydraulic Experiment 315 



Mr. E. Hargreaves on a Diffraction Problem. Supplementary 



Note 317 



The Hon. E. J. Strutt on the Scattering of Light by Air 



Molecules 320 



Prof. D. N. Mallik on Elastic Solids under Body Forces 321 



Dr. A. "W. Stewart on Atomic Structure from the Physico- 

 chemical Standpoint 32g 



Mr. H. Bell on Atomic Number and Frequency Differences 



in Spectral Series 337 



Prof. E. A. Sampson on the Genesis of the Law of Error . . 347 

 Dr. J. E. Ash worth on the Calculation of Magnetic and 

 Electric Saturation Values 351 



