Proceedings of the Royal society of London. VOL117 (1928)

A Theory of Electric and Magnetic Birefringence in Liquids. By C. V. Raman, F.R.S., and K.S. Krishnan

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Density of the Vapour in the Mercury Arc and the Relative Intensities of the Radiated Spectral Lincs, with Special Reference to the Forbidden Line l 2270. By B. Venkatesachar. Communicated by Lord Rayleigh, F.R.S. (Plates 1-3)

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On the Input Limit of an X-Ray Tube with Circular Focus. By A. Müller. Communicated by Sir William Bragg, F.R.S

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The Dielectric Constants of Ammonia, Phosphine, and Arsine. By H. E. Watson. Communicated by F. G. Donnan, F.R.S.

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An X-Ray Study of the Heat Motions of the Atoms in a Rock-Salt Crystal. By R. W. James and E. M. Firth. Communicated by W. L. Bragg. F.R.S.

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Shifts and Reversals in Fuse-Spectra. By A. C. Menzies. Communicated by R. Whiddington, F.R.S. (Plate 4)

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A Study of the Catalysis by Nickel of the Union of Hydrogen and Oxygen by a New Method. By D. R. Hughes and R. C. Bevan. Communicated by D. L. Chapman. F.R.S.

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The Average Energy of Disintegration of Radium E. By C. D. Ellis and W. A. Wooster. Communicated by Sir Ernest Rutherford, P.R.S.

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The Elasticity of the Collisions of Alpha Particles with Hydrogen Nuclei. By P. M. S. Blackett and E. P. Hudson. Communicated by Sir Ernest Rutherford, P.R.S. (Plate 5)

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The Relative Stability of Nitrous Oxide and Ammonia in the Electric Discharge. By W. K. Hutchison and C. N. Hinshelwood. Communicated by R. Hartley, F.R.S.

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Application of Quantum Mechanics to the Stark Effect in Helium. By J. S. Foster. Communicated by N. Bohr, For Mem. R.S. (Plates 6-13)

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The Spectrum of Carbon Arcs in Air at High Current Densities. By J. W. Ryde. Communicated by A. Fowler, F.R.S. (Plates 14-16)

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Studies of Gas-Solid Equilibria. Part. I. Pressure Temperature Equilibria between Benzene and (a) Ferric Oxide Gel; (b) Silica Gel in Scaled Systems of Known and Unalterable Total Composition. By B. Lambert and A. M. Clark. Communicated by F. Soddy, F.R.S.

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Adjoint Differential Equations. By F. B. Pidduck. Communicated by A. E. H. Love, F.R.S.

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The Refractive Index of Quartz. By W. P. C. Coode-Adams. Communicated by T. M. Lowry, F.R.S.

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On the Temperature Factors of X-Ray Reflexion for Sodium and Chlorine in the Rock-Salt Crystal. By L. Waller and B. W. James. Communicated by W. L. Bragg, F.R.S.

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On the Excitation of Polarised Light by Electron Impact. II.-Mercury. By H. W. B. Skinner and E. T. S. Appleyard. Communicated by Sir Ernest Rutherford, P.R.S.

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On the Effect of temperature on the Viscosity of Air. By R. S. Edwards. Foreword by A. O. Rankine. Communicated by H. L. Callendar, F.R.S.

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Free Motion in the Wave Mechanics. By C. G. Darwic, F.R.S.

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The Line Spectrum of Mercury in Absorption. Occurrence of the Forbidden Line l 2270. By Lord Rayleigh, F.R.S. (Plate 17)

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Address of the President, Sir Ernest Rutherford, O. M., at the Anniversary Meeting, November 30, 1927

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The Spectrum of Doubly Ionised Oxygen (O III). By A. Fowler, F.R.S.

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A Vector Loci Method of Treating Coupled Circuits. By E. Mallett. Communicated by T. Mather, F.R.S.

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The Ultra-Violet Band-System of Carbon Monosulphide and its Relation to those of Carbon Monoxide (the "4th Positive" Bands) and Silicon Monoxide. By W. Jevons. Communicated by Prof. A. Fowler, F.R.S.

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Spectrophotometric Observations on the Growth of Oxide Films on Iron, Nickel, and Copper. By F. H. Constable. Communicated by T. M. Lowry, F.R.S.

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An Experimental Study of the Motion of a Viscous Liquid contained between Two Coaxial Cylinders. By J. W. Lewis. Communicated by Prof. H. M. Plummer, F.R.S. (Plate 18)

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The Spectrum of Fluorine (F 1). Part II. By H. Dingle. Communicated by Prof. A. Fowler, F.R.S.

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Resistance to a Barrier in the Shape of an Arc of a Circle. By L. Rosenhead. With Note by S. Brodetsky. Communicated by L. Bairstow, F.R.S.

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A Magnetometer for the Measurement of the Earth's Vertical Magnetic Intensity in C.G.S. Measure. By D. W. Dye. Communicated by Sir Arthur Schuster, F.R.S.

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The Thermal Conductivities of Certain Liquids. By G. W. C. Kaye, O.B.E., and W. F. Higgins. Communicated by Sir Joseph Petavel, F.R.S.

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The Magnetic Properties of Single Crystals of Nickel. By W. Sucksmith, H. H. Potter and L. Broadway. Communicated by A. P. Chattock, F.R.S.

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The Continuous Absorption of Light in Potassium Vapour. By R. W. Ditchburn. Communicated by Sir J. J. Thomson, F.R.S.

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On a Photoelectric Theory of Sparking Potentials. By J. Taylor. Communicated by O. W. Richardson, F.R.S.

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The Crystal Structure of the Chondrodite Series. By W. H. Taylor and J. West. Communicated by W. L. Bragg. F.R.S.

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The Structure of Surface Films. Part X. - Phenols and Monoglycerides. By N. K. Adam, W. A. Berry and H. A. Turner. Communicated by Sir William Hardy, F.R.S.

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On a New Effect in the Electric Discharge. By T. R. Merton, F.R.S.

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The Restored Electron Theory of Metals and Thermionic Formulae. By R. H. Fowler, F.R.S.

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Gaseous Combustion at High Pressures. Part IX-The Influence of Pressure upon the "Explosion Limits" of Inflammable Gas-Air, etc., Mixtures. By W. A. Bone, F.R.S, D. M. Newitt, and C. M. Smith

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On a Method of Determining the State of Polarisation of Downcoming Wireless Waves. By E. V. Appleton, F.R.S., and J. A. Ratcliffe

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A Theory of the Optical and Electrical Properties of Liquids. By C. V. Raman, F.R.S., and K. S. Krishnan

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Experiments on the Diffraction of Cathode Rays. By G. P. Thomson. Communicated by Sir Joseph Thomson, F.R.S. (Plate 19)

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The Quantum Theory of the Electron. By P. A. M. Dirac. Communicated by R. H. Fowler, F.R.S.

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The Fundamental Equation of Wave Mechanics and the Metrics of Space. By H. T. Flint and J. W. Fisher. Communicated by O. W. Richardson, F.R.S.

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Relativity and the Quantum Theory. By H. T. Flint. Communicated by O. W. Richardson, F.R.S.

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On a Minimum Proper Time and its Applications (1) to the Number of the Chemical Elements (2) to some Uncertainty Relations. By H. T. Flint and O. W. Richardson, F.R.S.

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Critical Potentials for Soft X-Ray Excitation. By U. Andrewes, A. C. Davies, and F. Horton, F.R.S.

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The Solubility of Hydrogen in Silver. By E. W. R. Steacie and F. M. G. Johnson. Communicated by Prof. A. S. Eve. F.R.S.

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The Specific Heats of Ferromagnetic Substances. By L. F. Bates. Communicated by A. W. Porter, F.R.S.

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The Tides in Oceans on a Rotating Globe - Part I. By G. R. Goldsbrough. Communicated by Prof. T. H. Havelock, F.R.S.

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On the Extraction of Electrons from Cold Conductors in Intense Electric Fields. By O. W. Richardson, F.R.S.

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Arthur William Crossley (with portrait)

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William Burnside (with portrait)

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Willem Einthoven (with portrait)

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Henry Martyn Taylor (with portrait)

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Index

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