*1 CONTENTS OF VOL. XXXVI. SIXTH SEKIES 



Page 

 Notices respecting New Books : — 



Dr. L. Silberstein's Elements of the Electromagnetic 



Theory of Light 361 



Dr. Sydney Young's Stoichioinetry 361 



Dr. AV. H. Bragg and Mr. W. L. Bragg's X Rays and 



Crystal Structure 362 



Proceedings of the Geological Society : — 



Ejr. W. F. Smeeth on the Geology of Southern India . . 362 



NUMBER CCXV.— NOVEMBER. 



Lord Rayleigh on the Dispersal of Light by a Dielectric 



Cylinder 365 



Prof. G. N. Antonoff on Interfacial Tension and Complex 



Molecules 377 



Mr. S. Ratner on some Properties of the Active Deposit of 



Radium 397 



Mr. T. Smith on the Correction of Telescopic Objectives. . . . 405 

 Dr. L. Silberstein on the Electron Theory of Metallic Con- 

 ductors applied to Electrostatic Distribution Problems. . . . 413 

 Mr. F. J. W. Whipple on Diffraction of Plane Waves by a 



Screen bounded by a Straight Edge 420 



Notices respecting New Books : — 



Prof. H. C. Plummer's An Introductory Treatise on 



Dynamical Astronomy 425 



Proceedings of the Geological Society : — 



Dr. A. IT. Cox on the Relationship between Geological 

 Structure and Magnetic Disturbance 426 



NUMBER CCXVL— DECEMBER. 



Lord Rayleigh on the Light emitted from a Random Distri- 

 bution of Luminous Sources 429 



Prof. J. C. McLennan and J. F. T. Young on the Ultra- 

 violet Spectra of Magnesium and Selenium. (Plates XI. 

 &XIL) -.. 450 



