I. On the Newtonian Constant of Gravitation. By C.V. BOYS, A.R.S.M., F.R.S., Assistant Professor of Physics, Royal College of Science, South Kensington
II. On the Photographic Spectrum of the Great Nebula in Orion. By J. NORMAN LOCKYER, C.B., F.R.S.
III. Propagation of Magnetization of Iron as affected by the Electric Currents in the Iron. By J. HOPKINSON, F.R.S., and E. WILSON
IV. On the Dynamical Theory of Incompressible Viscous Fluids and the Determination of the Criterion. By OSBORNE REYNOLDS, M.A., LL.D., F.R.S., Professor of Engineering in Owens College, Manchester
V. On a Method of Determining the Thermal Conductivity of Metals, with Applications to Copper, Silver, Gold, and Platinum. By JAMES H. GRAY, M.A., B.Sc., late "1851 Exhibition" Scholar, Glasgow University. Communicated by Lord KELVIN, P.R.S.
VI. Argon, a New Constituent of the Atmosphere. By Lord RAYLEIGHT, Sec. R.S., and Professor WILLIAM RAMSAY, F.R.S.
VII. On the Spectra of Argon. By WILLIAM CROOKES, F.R.S., &c.
VIII. The Liquefaction and Solidification of Argon. By Dr. K. OLSZEWSKI, Professor of Chemistry in the University of Cracow. Communicated by Professor WILLIAM RAMSAY, F.R.S.
IX. The Latent Heat of Evaporation of Water. By E. H. GRIFFITHS, M.A., Sidney Sussex College, Cambridge. Communicated by R.T. GLAZEBROOK, F.R.S.
page 261
X. Contributions to the Mathematical Theory of Evolution. -II. Skew Variation in Homogeneous Material. By KARL PEARSON, University College, London. Communicated by Professor HENRICI, F.R.S.
XI. A Determination of the Specific Heat of Water in Terms of the International Electric Units. By ARTHUR SCHUSTER, F.R.S., Langworthy Professor of Physics at the Owens College, Manchester, and WILLIAM GANNON, M.A., Exhibition (1851) Scholar, Queen's College, Galway
XII. The Oscillations of a Rotating Ellipsoidal Shell containing Eluid. By S. S. HOUGH, B.A., St. John's College, Cambridge. Communicated by Sir ROBERT S. BALL, F.R.S.
XIII. On the Velocities of the Ions. By W. C. DAMPIER WHETHAM, M.A., Fellow of Trinity College, Cambridge. Communicated by Professor J. J. THOMSON, F.R.S.
XIV. On the Singular Solutions of Simultaneous Ordinary Differential Equations and the Theory of Congruencies. By A. C. DIXON, M.A., Fellow of Trinity College, Cambridge, Professor of Mathematics in Queen's College, Galway. Communicated by J. W. L. GLAISHER, Sc.D., F.R.S.
XV. On the Ratio of the Specific Heats of Some Compound Gases. By J. W. CAPSTICK, M.A., D.Sc., Fellow of Trinity College, Cambridge. Communicated by Professor J. J. THOMSON, F.R.S.
XVI. Iron and Steel at Welding Temperatures. By T. WRIGHTSON, M.P., Memb. Inst. C.E. Communicated by Professor ROBERTS-AUSTEN, C.B., F.R.S.
XVII. The Complete System of the Periods of a Hollow Vortex Ring. By H.C. POCKLINGTON, B.A., Fellow of St. John's College, Cambridge. Communicated by JOSEPH LARMOR, F.R.S.
XVIII. On the Magnetic Rotation of the Plane of Polarization of Light in Liquids. -Part I. Carbon Bisulphide and Water. By J. W. RODGER, Assoc. R.C.S., Demonstrator of Chemistry, and W.WATSON, B.Sc., Assoc. R.C.S., Demonstrator of Physics, the Royal College of Science, London. Communicated by Professor A. W. RÜCKER, F.R.S.
XIX. On the Occlusion of Oxygen and Hydrogen by Platinum Black.-Part I. By LUDWIG MOND, F.R.S., WILLIAM RAMSAY, Ph.D., F.R.S., and JOHN SHIELDS, D.Sc., Ph.D.
page 657
XX. A Dynamical Theory of the Electric and Luminiferous Medium.-Part II. Theory of Electrons. By JOSEPH LARMOR, F.R.S., Fellow of St. John's College, Cambridge
XXI. India's Contribution to Geodesy. By General J. T. WALKER, R.E., C.B., F.R.S., LL.D., late Surveyor-General of India
XXII. BAKERIAN LECTURE.-On the Laws of Connexion between the Conditions of a Chemical Change and its Amount.-III. Further Researches on the Reaction of Hydrogen Dioxide and Hydrogen Iodide. By A. VERNON HARCOURT, M.A., F.R.S., Pres. C.S., Student of Christ Church, and Lee's Reader in Chemistry, and WILLIAM ESSON, M.A., F.R.S., Fellow of Merton College, and Deputy Savilian Professor of Geometry in the University of Oxford
XXIII. Theorems on the Attraction of Ellipsoids for certain Laws of Force other than the Inverse Square. By E. J. ROUTH, D.Sc., F.R.S.