VOL. 183.
I. On the Physics of Media that are Composed of Free and Perfectly Elastic Molecules in a State of Motion. By J. J. WATERSTON. Communicated by Captain BEAUFORT, R.N., F.R.S., &c.
II. On the Time relations of the Excursions of the Capillary Electrometer, with a Description of the Method of Using it for the Investigation of Electrical Changes of Short Duration. By GEORGE J. BURCH, B.A., Oxon. Communicated by Professor BARTHOLOMEW PRICE, F.R.S.
III. On some of the Properties of Water and of Steam. By WILLIAM RAMSAY,Ph.D., F.R.S., and SYDNEY YOUNG, D.Sc.
IV. Comparison of Simultaneous Magnetic Disturbances at Several Observatories. By Professor W. GRYLLS ADAMS, D.Sc., F.R.S.
V. On the Locus of Singular Points and Lines which occur in connection with the Theory of the Locus of Ultimate Intersections of a System of Surfaces. By M. J. M. HILL, M.A., Sc.D., Professor of Mathematics at University College, London. Communicated by Professor HENRICI, F.R.S.
VI. Repulsion and Rotation produced by Alternating Electric Currents. By G. T. WALKER, B.A., B.Sc., Fellow of Trinity College, Cambridge. Communicated by Professor J. J. THOMSON
VII. Re-determination of the Mass of a Cubic Inch of Distilled Water. By H. J. CHANEY. Communicated by Sir G. GABRIEL STOKES, Bart., F.R.S.
VIII. On the Mechanical Stretching of Liquids: an Experimental Determination of the Volume-Extensibility of Ethyl-Alcohol. By A. M. WORTHINGTON, M. A., Professor of Physics and Head Master of the Royal Naval Engineering School, Devonport. Communicated by Professor POYNTING. F.R.S.
IX. The Thermal Emissivity of Thin Wires in Air. By W. E. AYRTON, F.R.S., and H. KILGOUR
X. On the Collision of Elastic Bodies. By S. H. BURBURY, F.R.S.
XI. On the Forces, Stresses, and Fluxes of Energy in the Electromagnetic Field. By OLIVER HEAVISIDE, F.R.S.
XII. On the Thermal Conductivities of Crystals and other Bad Conductors. By CHARLES H. LEES, M.Sc. (late Bishop Berkeley Fellow at the Owens College, Manchester). Communicated by Professor ARTHUR SCHUSTER, F.R.S.
XIII. Researches on Turacin, an Animal Pigment containing Copper. - II. By A. H. CHURCH, M.A., F.R.S., Professor of Chemistry in the Royal Academy of Arts, London
XIV. Colour Photometry. - Part III. By Captain W. DE W. ABNEY, C.B., R.E., D.C.L., F.R.S., and Major-General E. R. FESTING, R.E., F.R.S.
XV. On the Clark Cell as a Standard of Electromotive Force. By R. T. GLAZEBROOK, M.A., F.R.S., Fellow of Trinity College, and S. SKINNER, M.A., Christ's College, Demonstrator in the Cavendish Laboratory, Cambridge
XVI. On the Liquation of Metals of the Platinum Group. By EDWARD MATTHEY, F.S.A., F.C.S., Assoc. Roy. Sch. of Mines. Communicated by Sir G. G. STOKES, Bart., F.R.S.
XVII. BAKERIAN LECTURE. - On the Grand Currents of Atmospheric Circulation. By JAMES THOMSON, LL.D., F.R.S., Emeritus Professor of Civil Engineering and Mechanics in the University of Glasgow
XVIII. On the Mathematical Theory of Electromagnetism. By ALEX. MCAULAY, M.A., Ormond College, Melbourne. Communicated by the Rev.N. M. FERRERS, D.D., F.R.S.