CONTENTS OF VOL. XLVITT. FOURTH SERIES. VII 



Page 



Dr. A. Schusters Experiments on Electrical Vibrations .... 340 

 Prof. Challis on the Hydrodvnaraical Theory of the Action of 



a Galvanic Coil on an External Small Magnet. — Part II. . . 350 

 Sir W. Thomson on the Perturbations of the Compass pro- 

 duced by the rolling of the Ship 363 



Dr. W. M. "Watts on the Spectrum of Carbon 369 



Prof. A. M. Mayer's Researches in Acoustics. — No. V 371 



Mr. C. Tomlinson on the Action of Solids and of Friction in 



liberating Gas from Solution 385 



Prof. O. Reynolds on the Surface-Forces caused by the Com- 

 munication of Heat 389 



Proceedings of the Royal Society : — 



Mr. W. 1ST. Hartley on the Chemical Constitution of Saline 



Solutions 391 



Mr. G. Gore on the Attraction of Magnets and Electric 



Conductors 393 



On the Temperature of the Sun, by J. Violle 395 



Preliminary Notice on a new Method for Measuring the Specific 



Heat of Gases, by Eilhard Wiedemann 398 



On a new Formula in Definite Integrals, by J. W. L. Glaisher. 400 



NUMBER CCCXX.— DECEMBER. 



Dr. C. R. A. Wright on the Relations between Affinity and 

 the Condensed Symbolic Expressions of Chemical Facts and 



Changes known as Dissected (Structural) Formulae 401 



Prof. Challis on the Hydrodynamical Theory of the Action of 

 a Galvanic Coil on an external small Magnet. — Part III. . . 430 



Prof. A. M. Mayer's Researches in Acoustics. — No. V 445 



Lord Rayleigh on a Statical Theorem 452 



Dr. W. M. Watts on Carbon-Spectra 456 



Mr. J. W. L. Glaisher on the Problem of the Eight Queens . . 457 

 Notices respecting New Books : — 



The Hon. Sir W. R. Grove's Correlation of Physical 



Forces .*.... 467 



Mr. W. G. Willson's Elementary Dynamics 4 71 



Proceedings of the Royal Society : — 



Dr. W. Huggins on the Motions of some of the Nebulas 



towards or from the Earth 471 



On the Intensity of the Light reflected from Glass, by Dr. P. 



Glan " 475 



Polarization of the Plates of Condensers, by A. S. Thayer . . 47S 

 On Electrical Currents accompanying the non-simultaneous 

 Immersion of two Mercury Electrodes in various Liquids, 

 by G. Quincke 479 



