Author: ROYAL SOCIETY
Title: Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. Volume XCV 1918-1919 (Numbers 665-673)
Description: London: The Royal Society, 1919. First Edition; First Edition. Library Buckram. Vi, 563, xl pages. With plates, (folding) diagrams, tables & illustrations. Original wrappers bound in. With library stamps & labels. Slight wear & some soiling to spine, covers & corners. One plate offset on opposite page. ; Ex-Library; Quarto; SERIES A. VOL. XCVNo. A 665.-September 2, 1918.Ñ Curved Beams. By James J. Guest, University College, London. Communicated by Prof. W. E. Dalby, F. R. S. Ñ On the Cesêro Convergence of Restricted Fourier Series. By W. H. Young, F. R. S. Ñ On the Electrical Resolution and Broadening of Helium Lines. By Thomas R. Merton, D. Sc, Lecturer in Spectroscopy at the University of London, King+s College. Communicated by Prof. A. Fowler, F. R. SÑ Periodic Irrotational Waves of Finite Height. By T. H. Havelock, F. R. SÑ Experiments on the Effect of the Vibration of a Stretched Wire forming Part of a Closed Electric Circuit. By Admiral Sir Henry Jackson, G. C. B, F. R. SÑ The Diamagnetism of Hydrogen and the Value of the Magneton. By Major A. E. Oxley, R. F. C, M. A, D. Sc. Communicated by Prof. J. W. Nicholson, F. R. S. No. A 666.-October 7, 1918.Ñ An Outline of a Theory of Magnetic Storms. By S. Chapman, M. A, D. Sc, Fellow and Lecturer of Trinity College, Cambridge, and Chief Assistant at the Royal Observatory, Greenwich. Communicated by Sir F. W. Dyson, F. R. S, Astronomer Royal : Ñ The Diffraction of Electric Waves by the Earth. By G. N. Watson, Sc. D, D. Sc, Assistant Professor of Pure Mathematics at University College, London. Communicated by Prof. J. W. Nicholson, F. R. SÑ Note on the Effect of Wind Pressure on the Pitch of Organ Pipes. By A. Mallock, F. R. SÑ The Periods of Lateral Vibration of Loaded Shafts. -The Rational Derivation of Dunkerley+s Empirical Rule for Determining Whirling Speeds. By H. H. Jeffcott, B. A, B. A. I, Professor of Engineering, Royal College of Science for Ireland. Communicated by Prof. W. McF. Orr, F. R. SÑ On the Spectrum of Cadmium in the Inactive Gases. By J. N. Collie, F. R. S, and H. E. Watson, D. ScÑ Further Experiments on Spontaneous Generation of Heat in Recently Hardened Steel. By Charles F. Brush, Sir Robert A. Hadfield, Bt, F. R. S, and S. A. Main, B. Sc. 120 No. A 667.-November 7, 1918.Ñ Sounds Produced by Drops Falling on Water. By A. Mallock, F. R. S. (Plate D.138Ñ On the Coefficients in the Expansions of Certain Modular Functions. By G. H. Hardy, F. R. S, and S. Bamanujan, F. R. S Ñ The Light Scattered by Gases : its Polarisation and Intensity. By the Hon. R. J. Strutt, F. R. S, Professor of Physics, Imperial College, South Kensington. (Plate 2) No. A 668.-January 1, 1919.Ñ On Haidinger+s Rings in Mica. By T. K. Chinmayanandam, M. A. (Hons. ) . Communicated by Dr. Gilbert T. Walker, C. S. I, D. Sc, F. R. S Ñ The Thermal Conductivity of Air. By E. O. Hercus, M. Sc, New Zealand Government Research Scholar, and T. H. Laby, M. A, Professor of Natural Philosophy, University of Melbourne. Communicated by Sir Joseph Larmor, F. R. S. Ñ Electric Potential Gradient and Atmospheric Opacity at Kew Observatory. By C. Chree, Sc. D, LL. D, F. R. S. Ñ On the Nature of Sun-Spots. ByGeorge E. Hale, For. Mem. R. S. (Abstract) Ñ On Non-harmonic Trigonometrical Series. By Prof. W. H. Young Sc. D, F. R. S No. A 669.-February 1, 1919.Ñ Address of the President, Sir J. J. Thomson, O. M, at the Anniversary Meeting, November 30, 1918 Ñ An Investigation of Extreme Ultra-violet Spectra, with a vacuum-grating Spectrograph. By J. C. McLennan, F. R. S, and Mr. R. J. Lang, M. A. University of Toronto. (Plate 3) Ñ On the Absorption Spectra and the Ionisation Potentials of Calcium, Strontium, and Barium. By J. C. McLennan, F. R. S, and J. F. T. Young, M. A, University of Toronto. (Plates 4-6) Ñ Emission and Absorption in the Infra-red Spectra of Mercury, Zinc, and Cadmium. By Raymond C. Dearie, M. A, University of Toronto. Communicated by Prof. J. C. McLennan, F. R. S Ñ On the Value of the Secular Acceleration of the Mean Longitude of the Moon. By E. Nevill, F. R. S Ñ A Study of the Forms assumed by Drops and Vortices of a Gelatinising Liquid in Various Coagulating Solutions. By Emil Hatschek. Communicated by Prof. D+Arcy Thompson, F. R. S No. A 670.-March 15, 1919.Ñ Vacuum Arc Spectra of various Elements in the Extreme Ultra-violet. By Prof. J. C. McLennan, F. R. S. ; D. S. Ainslie, M. A. ; and D. S. Fuller, M. A, University of Toronto. (Plates 7-10) Ñ An Investigation of the Ionising Power of the Positive Ions from a Glowing Tantalum Filament in Helium. By Frank Horton, Sc. D, Professor of Physics in the University of London, and Ann Catherine Davies, M. Sc, Royal Holloway College, Englefield Green. Communicated by Mr. C. T. R. Wilson, F. R. S Ñ Wave Resistance : Some Cases of Three-dimensional Fluid Motion. By T. H. Havelock, F. R. S Ñ Experiments Demonstrating an Electrical Effect in Vibrating Metals. By Admiral Sir H. B. Jackson, G. C. B, F. R. S, and G. B. Bryan, D. Sc No. A 671.-April 1, 1919.Ñ Chances of Loss of Merchant Ships. By W. S. Abell, Chief Ship Surveyor, Lloyd+s Register of Shipping. Communicated by Prof. W. Burnside, F. R. S Ñ Contribution to the Theory of Attraction when the Force Varies as any Power of the Distance. By Major P. A. MacMahon, F. R. S, and H. B. C. Darling Ñ On the Cause of Hierarchical Order among the Correlation Coefficients of a Number of Variütes Taken in Pairs. By Godfrey H. Thomson, D. Sc, Armstrong College, in the University of Durham. Communicated by Prof. T. H. Havelock, F. R. S Ñ An Experimental Determination of the Ionisation Potential for Electrons in Helium. By Frank Horton, Sc. D, Professor of Physics in the University of London, and Ann Catherine Davies, M. Sc, Royal Holloway College, Englefield Green. Communicated by Mr. C. T. R. Wilson, F. R. S Ñ Note on the Elasticity of Metals as Affected by Temperature. By A. Mallock, F. R. S No. A 672.-June 4, 1919.Ñ On the Arc Spectrum of Scandium. By Sir William Crookes, O. M, D. Sc, F. R. S. (Plate 11) Ñ Vibration and Srength of Struts and Continuous Beams under End Thrusts. By W. L. Cowley, A. R. C. Sc, D. I. C, and H. Levy, M. A, B. Sc, F. R. S E. Communicated by Sir R. Glazebrook, F. R. S Ñ Two-dimensional Solutions of Poisson+s and Laplace+s Equations. Part I. -By Leonard Bairstow, F. R. S, C. B. E. Part II. -By Arthur Berry, M. A, Fellow of King+s College, Cambridge Ñ Scattering of Light by Solid Substances. Bythe Hon. R. J. Strutt, F. R. S, Imperial College, South Kensington. (Plate12) Ñ A New Method of Weighing Colloidal Particles. By E. F. Burton, Ph. D, Associate Professor of Physics, University of Toronto. Communicated by Prof. J. C. McLennan, F. R. S Ñ The Constitution of Sulphur Vapour. By Sir James J. Dobbie, F. R. S, and J. J. Fox, M. B. E, D. Sc. (Plates 13 and 14) Ñ An Apparatus for the Direct Determination of Accelerations. By the late Prince B. Galitzin, For. Mem. R. S Ñ On the Explosion at Okhta. By the late Prince B. Galitzin, For. Mem. R. S Ñ The Two-Dimensional Motion t of a Plane Lamina in a Resisting Medium. By S. Brodetsky, M. A, Ph. D. Communicated by Prof. G. H. Bryan, F. R. S. Ñ A New Method for the Absolute Determination of Frequency. By Ashutosh Dey, with a Prefatory Note and an Appendix by C. V. Raman, M. A, Palit Professor of Physics in the Calcutta University. Communicated by Dr. Gilbert T. Walker, C. S. I, Sc. D, F. R. S Ñ The Transmission of Electric Waves round the Earth. By G. N. Watson, Sc. D, D. Sc, Professor of Mathematics in the University of Birmingham. Communicated by Prof. J. W. Nicholson, F.R.S Ñ OBITUARY NOTICES OF FELLOWS DECEASED. Keith Lucas (with portrait) ; Hugo Mƒller (with portrait) ; Bertram Hopkinson (with portrait). Good .

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