VI CONTENTS OF VOL. XIV. SIXTH SERIES. 



Page 

 Dr. G. Eiimelinon the Eateof Transformation of theBadium 



Emanation 550 



Notices respecting New Books : — 



A. W. Stewart's Stereochemistry 553 



E. De Valbreuze's Notions Generales sur La Telegraphie 



Sans Eil 554 



Proceedings of the Geological Society : — 



Mr. F. W. Harmer on the Origin of certain Canon-like 

 Valleys associated with Lake-like Areas of Depression. 555 



NUMBEE LXXXIII.— NOVEMBEB. 



Prof. O. W. Bichardson : A Theory of Displacement of 



Spectral Lines produced by Pressure 557 



Prof. E. H. Barton on the Lateral Vibration of Bars treated 



simply. (Plate XIV.) 578 



Mr. C. V. Eaman on the Curvature Method of determining 



the Surface-Tension of Liquids. (Plate XV.) 591 



Lord Eayleigh on the Eelation of the Sensitiveness of the Ear 



to Pitch, investigated by a new Method 596 



Mr. E. T. Beatty on Secondary Eontgen Eadiation in Air . . 604 

 Dr. J. Kunz on an Abrupt Limit of Distance in the Power of 



the Positive Bays to produce Phosphorescence 614 



Mr. E. D. Kleeman on the Secondary Cathode Bays emitted 



by Substances when exposed to the y Bays 618 



Mr. J. S. Dow on a Eorm of Cosine .Flicker Photometer. 



(Plate XVI.) = 644 



Mr. J. A. Crowther on the Secondary Eontgen Eadiation from 



Gases and Vapours 653 



Notices respecting New Books : — 



Prof. M. LI. Bouasse's Bases Physiques de la Musique.. 675 



Proceedings of the Geological Society 676 



Intelligence aud Miscellaueous Articles : — 



" Experimental Mathematics," by F. J. Jervis-Smith . . 676 



NUMBEE LXXXIV.— DECEMBEE. 



Dr. J. A. Fleming on Magnetic Oscillators as Eadiators in 

 Wireless Telegraphy 677 



Dr. J. W. Nicholson on the Asymptotic Expansion of Bessel 

 Functions of High Order 697 



Mr. A. Stephenson on the Stability of the Steady State of 

 Forced Oscillation 707 



Dr. S. J. Allen on a Null Instrument for Measuring Ionization. 712 



