CONTENTS of N° 245.— Fifth Series. 



XXVIII. The Gladstone " Law " in Physical Optics, and the 

 True "Volume of Liquid Matter. By Walter Hibbert, F.I.C. page 321 



XXIX. On the Changes in Length produced in Iron Wires by 

 Magnetization. By Louis Trenchard More, Ph.D., Johns 

 Hopkins University 345 



XXX. Of the Kinetic Theory of Gas, regarded as illustrating 

 Nature. By George Johnstone Stoney, M.A., D.Sc, F.R.S., 

 Vice-President, Boyal Dublin Society 362 



XXXI. On the Cryoscopic Belations of Dilute Solutions of 

 Cane-Sugar and Ethyl Alcohol. By Harry C. Jones 383 



XXXII. Notices respecting New Books : — Dr. Andreas Fock's 

 Introduction to Chemical Crystallography 393 



XXXIII. Proceedings of Learned Societies : — 



Geological Society : — Mr. G. W. Lamplugh on the Crush- 

 Conglomerates of the Isle of Man 394 



XXXIV. Intelligence and Miscellaneous Articles : — 



A Simple Method of Determining the Duration of Torsional 

 Oscillations, by K. W. Wood 395 



On the Inconstancy of the Potential required for a Spark, by 

 G. Jaumann 396 



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

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

 Lion Court, Fleet Street, London. 



