— XXIV — 



duction. — 0. Fisher. A Reply to Objections raised by M.r Ch. 

 Davison, to the Argument on the Insul'ficiency of the Theory of 

 the Contraction of a Solid Earth to account for the Inequalities 

 of the Suifaces. — Ch. Davison. Note on the Relation between 

 the Size of a Planet and the Rnte of Mountain-building on its 

 Surface. — Silvanus P. Thompson. Twin Prism for Polarimeters. 



— E. Edlund. On the Theory of Unipolar Induction. — /. C. 

 Mcconnal. On the Cause of Iridescence in Clouds. — H. F. Ne- 

 ivall. On Peculiaiities observed in Iron and Steel at a Bright- 

 Red Hcat. — /. Kleiber. On « Random Scattering » of Points on 

 a Sur Tace. 



Idem. - Voi. 24, n. 151. - December 1887. 



A. A. Michelson, and E. W. Morley. On the Relative Molion of the 

 Earth and (he Luminiferous Aether. — On a Method of rnnking 

 the Wavelength of Sodium Light the actual and jiractical Stan- 

 dard of Lengtii. — //. //. Twner. On Mr. Edgeworth's Melhod 

 of Reducing Observations relating to severa! Quantities. — S. //. 

 Burbury. On the Diffusion of Gases. A simple case of Diffusion. 



— Oliver Heaviside. On Resistance and Conductance Operators, 

 and their Derivatives, Inductance and Perinittance, esppcially in 

 connexion with Electric and Magnetic Energy. — W. Thornson. 

 On the Division of Space with Minimum Partitional Area. •— 

 On the Application of the Deci-ampere or the Centi-ampere Ba- 

 lance to the Determination of the Electromotive Forces of Vol- 

 laic Ct'Us. 



Idem. - Voi. 25, n. 152. - January 1888. 



E. F. J. Love. On a Method of Disciiminating Real from Accidental 

 Coincidences between the Lines of ditferent Spectra; with some 

 Applications. — 0. Fisher. On the Mean Height the Surlace- 

 ElevHlions, and other Quantitative Results of the Contraction of 

 a Solid Globe tiough Couling ; regard being paid to the exislen- 

 ce of a ievel of no strain, as lately annonnced by Mr. T. Mel- 

 lard Reade and by Mr. C. Davison, — H. E. Armstrong. A Note 

 on Valcncy, pspeci illy as dcfinied by Ilclmholtz. — T. H. Bla- 

 kesley. On a Geometrica! Determination of the Condilions of 

 Maximum Efficiency in the case of the Transmission of Power 

 by means of Alternating Electric Currents. — Tait. Note on the 

 Motions of a Gas « in Mass ». — A. E. H. Love. On Dedekind's 



