CONTENTS op N° 236.— Fifth Series, 



I. Further Studies on Molecular Force. By William Suther- 

 land page 1 



II. The Influence of Temperature on the Specific Heat of Aniline. 



By E. H. Griffiths, M.A. (Plates I. & II.) 47 



III. A Method for Comparing the Values of the Specific Iuduc- 

 tive Capacity of a Substance under Slowly and Rapidly Changing 

 Fields : Results for Paraffin and Glass. By Edwin F. JNorthrup. 

 (Plate III.) 78 



IV. " Densities in the Earth's Crust." By J. Brill, M.A 93 



Y. The Significance of Wiener's Localization of the Photographic 

 Action of Stationary Light- Waves. By J. Larmor, F.R.S., Fellow 

 of St. John's College, Cambridge 97 



YI. The Role of Atomic Heat in the Periodic Series of the 

 Elements. By C. T. Blanshard, M.A 106 



VII. On a Suggestion by Professor J. J. Thomson in Connexion 

 with the Luminescence of Glass due to Kathode-Hays. By John 

 Burke, B.A., Lecturer in Physics, Mason College, Birmingham . . 115 



VIII. The Luminosity of Gases. By Arthur Smithells, B.Sc. 

 (Plate IV.) 122 



IX. Specific Inductive Capacities of Water, Alcohol, &c. By J. 

 Hopkinson 134 



X. On Colonel Hime's ' Outlines of Quaternions.' By Prof. 

 Alexander Macfarlane 165 



XI. Notices respecting New Books : — Prof. F. Kohlrausch's 

 Introduction to Physical Measurements ; Watts' Dictionary of 

 Chemistry, Vol. IV 137-139 



XII. Proceedings of Learned Societies : — 



Geological Society ; — Prof. A. H. Green on some recent 

 Sections in the Malvern Hills ; Mr. Philip Lake on the 

 Denbighshire Series of South Denbighshire; Rev. J.F. Blake 

 on some Points in the Geology of the Harlech Area. . . . 140-142 



XIII. Intelligence and Miscellaneous Articles : — 



On the Velocity of Sound in Gases, by Tito Martini 142 



Influence of Magnetic Fields on the Electrical Conductivity of 



Bismuth, by James B. Henderson 143 



On the Influence of Temperature on the Specific Heat of 



Aniline, by E. H. Griffiths ib. 



On the Dielectric Power of Ice, by M. A. Perot 144 



On the Refraction and Dispersion of Electrical Rays, by E. 



Garbasso and E. Aschkinass ib. 



*#* It is requested that all Communications for this Work may be addressed, 

 post-paid, to the Care of Messrs. Taylor and Francis, Printing Office, Red 

 Lion Court, Fleet Street, London. 



