CONTENTS OF VOL. XXIII. 



(FIFTH SEEIES). 



NUMBER CXL.— JANUAET 1887. 



Page 



Mr. J. J. Coleman on Liquid Diffusion. (Plate I.) 1 



Mr. 0. Heaviside on the 8 elf -induction of Wires. — Part V. . . 10 

 Hon. E. Abercromby on the peculiar Sunrise-Shadows of 



Adam's Peak in Ceylon 29 



Prof. A. W. Eiicker on the Critical Mean Curvature of Liquid 



Surfaces of Eevolution 35 



Mr. T. Gray on Silk v. Wire Suspensions in Galvanometers, 



and on the Eigidity of Silk Fibre 46 



Sir W. Thomson on Stationary Waves in Flowing Water. — 

 Part IV. Stationary Waves on the Surface produced by 



Equidistant Eidges on the Bottom 52 



Eev. T. K. Abbott on the Order of Lever to which the Oar 



belongs 58 



Drs. W. Eamsay and S. Young on the Influence of Change of 

 Condition from the Liquid to the Solid State on Vapour- 

 pressure 61 



Proceedings of the Geological Society : — 



Prof. T. M c Kenny Hughes on the Drifts of the Vale of 

 Clwyd, and their Eelation to the Caves and Cave- 

 deposits 69 



Mr. F. Butley on the Metrmorphic Eocks of the Malvern 



Hills 70 



On a nearly perfect Simple Pendulum, by J. T. Bottomley . . 72 



NUMBEE CXLL— FEBEUAEY. 



Prof. H. E. Armstrong on the Determination of the Constitu- 

 tion of Carbon Compounds from Thermochemical Data .... 73 



Prof. S. U. Pickering on the foregoing Communication .... 109 



Sir W. Thomson on the Front and Eear of a Free Procession 

 of Waves in Deep Water 113 



Prof. Gr. Carey Foster on a Method of Determining Coefficients 

 of Mutual Induction 121 



