IV CONTENTS OF VOL. XXIII. FIFTH SERIES. 



Page 

 Drs. W. Kamsay and S. Young on the Nature of Liquids, as 

 shown by a Study of the Thermal Properties of Stable and 



Dissociable Bodies 129 



Mr. W. N. Shaw on the Atomic Weights of Silver and 



Copper 138 



Prof. Tait on the Foundations of the Kinetic Theory of Gases. 



Part II 141 



Eev. 0. Fisher on the Amount of the Elevations attributable 

 to Compression through the Contraction during Cooling of 



a Solid Earth , 145 



Mr. E. H. M. Bosanquet on Silk v. Wire 149 



Mr. J. Walker on Cauchy's Theory of Eeflection and Befrac- 



tion of Light 151 



Mr. O. Heaviside on the Self-induction of Wires. — Part VI. . 173 

 Notices respecting New Books : — 



Mr. T. Mellard Eeade's Origin of Mountain-Eanges, 

 considered Experimentally, Dynamically, and in Eela- 



tion to their Geological History 213 



Descriptive Catalogue of a Collection of the Economic 



Minerals of Canada 216 



Journal and Proceedings of the Eoyal Society of New 



South Wales for 1885 216 



Capt. W. Noble's Hours with a Three-Inch Telescope . . 218 

 Prof. G. Chrystal's Algebra : an Elementary Textbook 

 for the higher classes of Secondary Schools and for 



Colleges 219 



Dr. B. O. Peirce's Elements of the Theory of the New- 

 tonian Potential Function 220 



Proceedings of the Geological Society : — 



Mr. W. Whitaker on the Eesults of some deep Borings 



in Kent 222 



" To what Order of Lever does the Oar belong ? " by Francis 



A. Tarleton, Fellow of Trinity College, Dublin 222 



On the Specific Heats of the Vapours of Acetic Acid and 

 Nitrogen Tetroxide, by Prof. Eichard Threlfall 223 



NUMBEE CXLIL— MAECH. 



Lord Eayleigh's Notes on Electricity and Magnetism. — III. 

 On the Behaviour of Iron and Steel under the Operation of 

 Feeble Magnetic Forces. (Plate II.) 225 



Mr. H. Tomlinson on the Permanent and Temporary Effects 

 on some of the Physical Properties of Iron, produced by 

 raising the Temperature to 100° C '. 245 



