CONTENTS of N° 261.— Fourth Series. 



XXXII. On the " Veined Structure " of the Ice of Glaciers. By 

 Henry Moseley, F.R.S., Canon of Bristol. (With a Plate.) . . page 241 



XXXIII. On the Structure of the Human Ear, and on the Mode 

 in which it administers to the Perception of Sound. By R. Moon, 

 M.A., Honorary Fellow of Queen's College, Cambridge 248 



XXXIV. A new discussion of the Mathematical Theory of Oceanic 

 Tides. By the Rev. Professor Challis, M.A., F.R.S., F.R.A.S. . . 260 



XXXV. Contributions to the Mineralogy of Nova Scotia. By Pro- 

 fessor How, D.C.L., Universityof King's College,Windsor, Nova Scotia. 275 



XXXVI. On the Polarization of Heat. By Professor Tyndall, 

 F.R.S. &c 280 



XXXVII. On */^-T. By Francis Guthrie, LL.B., Professor of 

 Mathematics, Graaff Reinet College, South Africa 282 



XXXVIII. On the Action of the Alkali-metals on the Ethers of the 

 Fatty Acids. By J. Alfred Wanklyn, Corresponding Member of 



the Royal Bavarian Academy . . 286 



XXXIX. On the Circumstances which determine the Variation of 

 Temperature in a Perfect Gas during Expansion and Condensation. 



By the Rev. J. M. Heath 288 



XL. Investigation of Flame-temperatures, in their Relations to Com- 

 position and Luminosity. — First Memoir. By B. Silliman and Henry 

 Wurtz 290 



XLI. Solar Radiation in connexion with Cloud and Vapour. By J. 

 Park Harrison, Esq. , 299 



XLII. Notices respecting New Books : — Our Domestic Fireplaces. 

 A New Edition. By Frederick Edwards, Jun.— Lecture-notes on 

 Physics. By Alfred M. Meyer, Ph.D. — Theory of Existence. By 

 Elias Dexter 300-303 



XLIII. Proceedings of Learned Societies : — 



Royal Society : — Mr. W. H. L. Russell on the Mechanical 

 Description of Curves ; Prof. W. J. M. Rankineoh the Ther- 

 modynamic Theory of Waves of Finite Longitudinal Disturb- 

 ance ; Mr. Frederick Guthrie on Approach caused by Vi- 

 bration; Messrs. E. Frankland and B. F. Duppa on the 

 successive Action of Sodium and Iodide of Ethyle upon Acetic 



Ether 304-312 



Geological Society : — Mr. G. W. Ormerod on the Structure 

 of the Granite on the Eastern side of Dartmoor ; Mr. D. 

 Mackintosh on Lithodomous Perforations on the Hills of 

 North-west Lancashire ; Prof. J. Nicol on the Parallel Roads 

 of Glen Roy ; Mr. J. C. Ward on Beds of supposed " Roth- 

 liegende " age near Knaresborough 313-315 



XLIV. Intelligence and Miscellaneous Articles : — 



Researches on Solar Radiation, by MM. P. Desains and E.Branley. 315 

 Avogadro's Law deduced from the Fundamental Conception of 

 the Mechanical Theory of Gases, by Alex. Naumann ...... 317 



* + * 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. 



