Volume Information Source: Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, Vol. 98, No. 688 (Sep. 1, 1920), pp. i-v Published by: The Royal Society Stable URL: http://www.jstor.org/stable/93899 . Accessed: 08/05/2014 14:35 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. . The Royal Society is collaborating with JSTOR to digitize, preserve and extend access to Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character. http://www.jstor.org This content downloaded from 169.229.32.137 on Thu, 8 May 2014 14:35:04 PM All use subject to JSTOR Terms and Conditions
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Volume InformationSource: Proceedings of the Royal Society of London. Series A, Containing Papers of aMathematical and Physical Character, Vol. 98, No. 688 (Sep. 1, 1920), pp. i-vPublished by: The Royal SocietyStable URL: http://www.jstor.org/stable/93899 .
Accessed: 08/05/2014 14:35
Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp
.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact [email protected].
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The Royal Society is collaborating with JSTOR to digitize, preserve and extend access to Proceedings of theRoyal Society of London. Series A, Containing Papers of a Mathematical and Physical Character.
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Minutes of Meetings, January to December, 1920 ............................................. i-xv
No. A 688.-September 1, 1920.
The Aspherical Nucleus Theory applied to the Balmer Series of Hydrogen. By L. Silberstein, Ph.D., Lecturer in Mathematical Phy-sics at the University of Rome. Communicated bv Prof. J. W. Nicholson, F.R.S ............................... .
The Catalytic Activity of C-opper.-Part I. By W. G. Palmer, St. John's College, Cambridge. Communicated by Sir William Pope, F.R.SP . ........................... 13
A Study of Catalytic Actions at Solid Surfaces. V.- The Rate of Change con- ditioned by a Nickel Catalyst and its Bearing oIn the Law of Mass Action. By E. F. Arinstrong, D.Sc., F.R.S., and T. P., Hilditch, D.S e .27
The Origin of the " Cyanogen" Bands. By S. Barratt. Communicated by Prof. T. R. Merton, F.R.S ......................................... I....................... 40
Mff ving Striations in Neon and Helium. By F. W. Aston, M.A., D.Sc., and T. Kikuchi. Communicated by Prof. Sir E. Rutherford, F.R.5. 0
A Re-examination of the Light scattered by Gases in respect of Polarisation. II.-Experiments on Helium aDd Argon. By Lord Rayleigh, F.R.S., Professor of Physics, Imperial College of Science, South Kensington ........................... 57
Reduction of Error by Linear Compounding. By W. F. Sheppard, Sc.D., LL.M. Communicated by Prof. E. T,. Whittaker, -F.R.S. (Abstract.) ............... I....... . 64
No. A 689.-October 1, 1920. Monoclinic Double Seleinates of the Copper Group. By A. E. H. Tutton, D.Sc.,
M.A.. F.R.S. .................... 67 Are Spectra v ac76o and Spark Spectra in Helium of Various Elements. By
J. C. McLennan, .F.R.S.), Professor of -Physics, University of Toronto,. J. F. T. Young, M.A., and H. J. C. Ireton, M.A. (Plate 1). 95
Spark Spectra of Various Elements in Heliumn in the Extreme Ultra-Violet. By J. C. McLennan, F.R.S., Professor of Physics, Uniiversity of Toronto, and A. C. Lewis, M.A. (Plate 2, A.) ..................................... . . 109
Note on Vacuum Grating Spectroscopy. By J. C. McLennan, 'F.R.S., Professor of Physics, University of Toronto. (Plate 2, B.) .......................................... 114
The Effects of Electron Collisions with Atmospheric Neon. By Franik Horton, Sc.D., Professor of Physics in the University of London, and Ann Catherine Davies, M.Sc., Royal Holloway College, Englefield Green. Communicated by C. T. R. Wilson, F.R.S. 12 ................... ...,.,..-........ 124
A 2
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The Absorption of Light by Elements in the State of Vapour: Seleniulm and Tellurium; Mercury, Zinc, Cadmium; Phosphorus, Arsenic, Antimony. By Sir J. J. Dobbie, F.R.S., and J. J. Fox, O.B.E., D.Sc. (Plates 3, 4, and 5) ...... 147
Photochemical Investigations of the Photographic Plate. By R. E. Slade, D.Sc., F.I.C., and G. I. Higson, M.Sc., A.I.C. Communicated by Prof. J. N. Collie, F.R.S. (Plate 6) .....................................................................154
Dilatation and Compressibility of Liquid Carbonic Acid. By C. F. Jenkin, C.B.E., M.Inst.C.E., Professor of Engineering Science, Oxford. Communicated by Sir J. Alfred Ewing, K.C.B., F.R.S ...................................... 170
Radiation in Explosions of Hydrogen and Air. By W. T. David, M.A., D.Sc. Commulnicated by Prof. H. L. Callendar, F.R.S .........................................183
The Aerodynamics of a Spinning Shell. By R. H. Fowler, E. G. Gallop, C. N. H. Lock, a.nd H. W. Richmond, F.R.S. (Abstract) ...................................... 199
On the Vibrations of an Elastic Plate in Contact with Water. By Horace Lamb, F.R.S .205
No. A 691.-IDecember 3, 1920. The Transmission of Electric Waves around the Earth's Surface. By H. M.
Forces in Surface Films. Part I.-Theoretical Considerations. Part II.-Experi- mental Observations and Calculations. Part III.-The Charge on Colloids. By A. M. Williams. M.A., D.Sc., Chemistry Department, UTiversity of Edin-burgh. Communicated by Prof. James Walker, F.R.S .223
The Relationship between Pressure and Temperature at the Same Level in the Free Atmosphere. By E. H. Chapman, M.A., D.Sc. Communicated by Sir Napier Sh-aw, F.R.S. ......................... . 235
On the Absorption and Scattering of Light. By Sir Arthur Schuster, F.B.S. 248
On the Effect of Concentration on the Spectra of Luminous Gases. By T. R. Merton, M.A., D.Sc., F.R.S., Professor of Spectroscopy in the University of Oxford ......................... . 255
On the Effect of Asyinmetry on Wave-length Determinations. By J. W. Nicholsoni, F.R.S., and T. R. Merton, F.R.S. . 261
No. A. 692.-January 3, 1921.
Magnietismn anid Atomic Structure.-I. By A. E. Oxley, M.A., D.Sc., F.Inst.P., Alackininon Student of the Royal Society. Communicated by Prof. S. Chapnian, F .R.S .I ................................ 264
On the Measurement of Low Magnetic Susceptibility by an Instrument of New Type. By Ernest Wilson, M.Inst.C.E., M.Inst.E.E. Cominunicated by Prof. J. W. Nicholson, F.R.S .274
DouLble Refraction and Crystalline Structure of Silica Glass. By Lord Rayleigh, F.R.S., Professor of Physics, Imperial College, South Kenasington. (Plates 7-9) 284
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The Magnetic Mechanical Analysis of Manganese Steel. By Sir Robert Hadfield, F.R.S., and Messrs. S. R. Williamis and I. S. Bowen, of the Department of Physics, Oberlin College, Oberlin, Ohio, U.S.A . .......................................... 297
The Internal Energy of Inflammable Mixtures of Coal-gas and Air after Explosion. By W. T. David, MA., D.Sc., Professor of Engineering, University College of South Wales and Moniimouthshire. Communicated by Sir Dugald Clerk, F.R.S. 303
Address of the President, Sir J. J. Thomson, O.M., at the Anniversary Meeting, Novelmber 30, 1920 ............. .. . . ...................... 319
No. A 693.-February 2, 1921.
The Tidal Motion in the Irish Sea, its Currents and its Energy. By R. 0. Street, M.A., M.Sc., Fellow of St. John's College, Cambridge, and Lecturer in the University of Liverpool. Communicated by Sir Joseph Larmor, F.R.S. ...... 329
Electrification of an Insulated Lens, treated by the Streamn-force-function; and Allied Problems. By Sir G. Greenhill, F.R.S ......................... ........... 345
Oli the Proximity of Atoms in Gaseous Molecules. By A. 0. Rankine, D.Sc., Professor of Physics in the Imperial College of Science and Technology. Communicated by Prof. H. L. Callendar, F.R.S .................................... 360
Oni the Similarity between Carbon Dioxide and Nitrous Oxide. By A. 0. Rankine, D.Sc., Professor of Physics in the Imperial College of Science and Technology. Commulnicated by Prof. H. L. Callendar, F.R.S. .......................................369
Experiments on Electron Emission from Hot Bodies. By Sih Ling Ting, M.Sc., Birmingham. Communicated, with a Preface, by Prof. 0. W. Richardson, F.R.S. ..................................................................................................374
No. A 694.-March 3, 1921.
The Ultramicroscopic Structure of Soaps. By W. F. Darke, J. W. McBain, and C. S. Salmon. Communicated by W. B. Hardy, Sec. R.S. (Plates 10 and 11) 395
The Transmission of Electric Waves around the Earth's Surface. By H. M. Macdonald, F.R.S. ............................... 409
A Conmparison of Magnetic Declination Chaniges at British Observatories. By C. Chree, Sc.D., LL.D., F.R.S. .............................................. ...... 411
Siren Harmonics and a Pure Tone Siren. By E. A. Milne and R. H. Fowler. Communicated by Prof. A. V. Hill, F.R.S ................................ 414
The Stability of Fluid Motion. By T. H. Havelock, F.RS. ............................428
No. A. 695.-March 24,1921.
Obituary Notices of Fellows Deceased:- John William Strutt, Baron Rayleigh (with portrait) ............. ..................... i
Emil Fischer (with portrait) ............................................................. 1
Index .. lix
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