Volume Information Source: Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, Vol. 122, No. 789 (Jan. 1, 1929), pp. i-vi Published by: The Royal Society Stable URL: http://www.jstor.org/stable/95175 . Accessed: 05/05/2014 16:37 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 130.132.123.28 on Mon, 5 May 2014 16:37:07 PM All use subject to JSTOR Terms and Conditions
Transcript
Volume InformationSource: Proceedings of the Royal Society of London. Series A, Containing Papers of aMathematical and Physical Character, Vol. 122, No. 789 (Jan. 1, 1929), pp. i-viPublished by: The Royal SocietyStable URL: http://www.jstor.org/stable/95175 .
Accessed: 05/05/2014 16:37
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].
.
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.
http://www.jstor.org
This content downloaded from 130.132.123.28 on Mon, 5 May 2014 16:37:07 PMAll use subject to JSTOR Terms and Conditions
Address of the President, Sir Ernest Rutherford, O.M., at the Anniversary Meeting, November 30, 1928 .............................. ................................... 1l
The Productions of New Radiations by Light Scattering.-Part I. By C. V. Raman, F.R.S., and K. S. Krishnan. (Plates 1 and 2) ............... ........................... 23
The Thermionic Emission Constant A. By R. H. Fowler, F.R.S . ........................ 36
Tribo-Electricity and Friction. IV.-E lectricity due to Air-Blown Particles. By P. E. Shaw. Communicated by Sir William Hardy, F.R.S. ......... ............... 49
Intensity Measurements in the Secondary Spectrum of Hydrogen.-II. By W. Kapuscinski and J. G. Eymers. Communicated by O.'W. Richardson, F.R.S.... 58
The Form of the Central Carbon Atom in PentaerythritDl Tetra-acetate as shown by X-ray Crystal Analysis. By I. E. Knaggs. Communicated by Sir William Bragg, F.R.S. (Plates 3 and 4) ............................................................. 69
Investigations on the Scattering of Light in Colloidal Solutions and Gels. Part I.- Agar Sol and Gel. By K. Krishnamurti. Communicated by F. G. Donnan, F.R.S .... 76
Structure of the Violet Bands of Silicon Nitride. By F. A. Jenkins and H. de Laszlo. Communicated by Sir Ernest Rutherford, P.R.S. (Plate 5) ............ 103
The Difference between the Mechanical and Optical Lengths of a Steel End-Gauge. By F. H. Rolt and H. Barrell. Communicated by Sir Joseph Petavel, F.R.S...1. 122
Ground-Terms in the Spectrum of Nickel II and Proposed Standard Wave-Lengths in the Schumann Region. By A. C. Menzies. Communicated by R. Whidding- ton, F.R.S. (Plate 6) ........................................ ......................... 134
The Spectrum of Doubly-Ionised Fluorine (F III). By H. Dingle. Communicated by A. Fowler, F.R.S. (Plate 7) ...................................... - 144
The Band Spectra of the Alkaline Earth Halides. I.-CaF, SrF. By R. C. Johnson. Communicated by T. R. Merton, F.R.S ....................................... 16
The Band Spectra of the Alkaline Earth Halides. II.-BaF, MgF. By R. C. Johnson. Communicated by T. R. Merton, F.R.S. .................................... ]89
a 2
This content downloaded from 130.132.123.28 on Mon, 5 May 2014 16:37:07 PMAll use subject to JSTOR Terms and Conditions
The Band Spectra Associated with Zinc, Cadmium and Mercury. By J. M. Walter and S. Barratt. Communicated by T. R. Merton, F.R.S. ......... .................. 201
Observations in Connection with the Bai d Systems of the Fluorides of Beryllium and Magnesium. By W. Jevons. Communicated by Prof. H. C. Plummer, F.R.S. (Plate 8) ......................................
I .............................................211
The Tides in Oceans on a Rotating Globe.-Part II. By G. R. Goldsbrougb. Com- municated by T. H. Havelock, F.R.S .................................... 228
The Formula for the Optical Rotatory Dispersion of Quartz. By T. Bradshaw aind G. H. Livens. Communicated by Prof. T. M. Lowry, F.R., . ........................ 245
On the Form and Potential Energy of the Isomorphous Crystals, Ruby (A1202) and Ho matite (Fe202). By J. Topping. Communicated by W. L. Bragg, F.R.S.... 251
Elastic Constants of Fuzed Quartz. Change of Young's Modulus with Temperature. By H. D. H. Drane. Communicated by- Lord Rayleigb, F.R.S ....................... 274
The Pressures of G)aseous Mixtures. II.-Helium and Hydrogen, and their Inter- molecular Forces. By C. W. Gibby, C. C. Tanner, and I. Massow. Communi- cated by F. G. Donnan, F.R.S. . ...........................................................283
Some Experiments Concerning the Counting of Scintillations. Produced by Alpha- Particles.-Part 1. By J. Chariton and C. A. Lea. Communicated by J. Chad- wick, F.R.S ...... 304
Some Experiments Concerning the Counting of Scintllations Produced by Alpha- Particles.-Part 11. The Determination of the Efficiency of Transformation of the Kinetic Energy of oa-Particles into Radiant Energy. By J. Chariton and C. A. Lea. Communicated by J. Chadwick, F.R.S ..................................... 320
Some Experiments Concerning the Counting of Scintillations Produced by Alpha- Particles.-Part 111. Practical Applications. By J. Chariton and C. A. Lea. Communicated by J. Chadwick F.R.S ............................. . .. I .... 335
The Tensorial Form of Dirac's Wave Equations. By G. Temple. Communicated by S. Chapman, F.R.S .............. .. . . ...... 352
The Charge of an Electron. By A. S. Eddington, F.-RS ..................................... 358
Minutes of Meetings f Novrember 30, December 6, 1928.
No. A 790-February 1, 1928.
On the Theory of the Solar Diurnal Variation of the Earth's Magnetism. By S. Chapman, F.R.S. .*.......................I.............. t .................................. 369
The Vertical Force on a Cylinder Submerged in a Uniform Stream. By T. H. Havelock, F.R.S. ........... * .. 387
The Photosynthesis of Naturally Occurring Compounds. IV.-The Temperatlure Coefficient of the Photosynthesis of Carbohydrates from Carbonic Acid. By E. C. C. Baly, F.R.S,, and N. R. Hood ............................- *, 393
This content downloaded from 130.132.123.28 on Mon, 5 May 2014 16:37:07 PMAll use subject to JSTOR Terms and Conditions
The Equilibrium of Heterogeneous Systems including Electrolytes. Part III.-The Effect of an Electric Field on the Adsorption of Organic Molecules and the Inter- pretation of Electrocapillary Curves. By J. A. V. Butler. Communicated by Sir James Walker, F.R.S. ................................................... 399
On the Analysis of the First Spark Spectrum of Sulphur. By D. K. Bhattachaxyya. Communicated by M. N. Saha, F.R.S .416
The Probability of Excitation by Electron-Impact in Neon. By R. d'E. Atkinson. Communicated by F. A. Lindemann, F.R.S. 430
The Ultra-Violet Spectrum of Magnesium Hydride. I.-The Band at X 2430. By R. W. B. Pearse. Communicated by A. Fowler, F.R.S. (Plate 9) .442
Measurements of the Amount of Ozone in the Earth's Atmosphere and its Relation to other Geophysical Conditions.-Part Ill. By G. M. B. Dobson, F.R.S., D. N. Harrison, and J. Lawrence ................... 456
Some Adsorption Isothermals for a Plane Platinum Surface. By W. G. Palmer. Communicated by Sir William Pope, F.R.S. . 487
Studies of Gas-Solid Equilibria.-Part II. Pressure-concentration Equilibria between Benzene and (a) Ferric Oxide Gel, (b) Silica Gel, directly determined under Isothermal Conditions. By B. Lambert and A. M. Clark. Communi- cated by F. Soddy, F.R.S . 497
The Triplets of Helium. By J. A. Gaunt. Communicated by R. H. Fowler, F.R.S.... 513
Skin Effect in Rectangular Conductors at High Frequencies. By J. D. Cockeroft. Communicated by Sir Ernest Rutherford, P.R.S. . 533
Relative Velocities of the Alpha-Particles Emitted by Certain Radioactive Elements. By G. C. Laurence. Communicated by Sir Ernest Rutherford, P.R.S . 543
The Products of Partial Hydrogenation of Higher Monoethylenic Esters. By T. P. Hilditch and N. L. Vidyarthi. Communicated by E. F. Armstrong, F.R.S . 552
The Products of Partial Hydrogenation of some Higher Polyethylenic Esters. By T. P. Hilditch and N. L. Vidyarthi. Communicated by E. F. Armstrong, F.R.S. 563
Electron Scattering in Helium. By E. G. Dymond and E. E. Watson. Communi- cated by Sir Ernest Rutherford, P.R.S. . 571
On Bromine Chloride. By S. Barratt and C. P. Stein. Communicated by T. R. Merton, F.R.S. . 582
Perturbation Theory in Quantum Mechanics. By A. H. Wilson. Communicated by R. H. Fowler, F.R.S . 589
Effect of Combined Electric and Magnetic Fields on the Helium Spectrum. By J. Stuart Foster. Communicated by A. S. Eve, F.R.S. (Plate 10) . 599
Pressure Distribution in a Fluid due to the Axial Vibration of a Rigid Disc. By N. W. McLachlan. Communicated by F. E. Smith, F.R.S . 604
This content downloaded from 130.132.123.28 on Mon, 5 May 2014 16:37:07 PMAll use subject to JSTOR Terms and Conditions
The Mechamsm of the Homogeneous Combination of Hydrogen and Oxygen. By H. W. Thompson and C. N. Hinshelwood. Communicated by Sir Harold Hartley, F.R.S. ........................... . . 610
Adsorption at a Water Surface. Part 1. By B. W. Currie and T. Alty. Communi- cated by Sir Joseph Thomson, F.R.S . ........................... 622
The Thermal Conductivity of Solid and Liquid Sulphur. By G. W. C. Kaye and W. F. Higgins. Communicated by Sir Joseph Petavel, F.R.S. . .. 633
The Absorption of Penetrating Radiation. By L. H. Gray. Communicated by Sir Ernest Rutherford, P.R.S ....... 647
An Investigation of the Ranges of the Long Range a-Particles from Thoriuim C and Radium C, using an Expansion Chamber. By R. R. Nimmo and N. Feather. Communicated by Sir Ernest Rutherford, P.R.S. (Plates 11-12) .668
The Spectrum of H2: The Bands Analogous to the Ortho-helium Line Spectrum. By 0. W. Richardson and K. Das .............................. I . 688
OBITUARY NOTICES.
Henry Richardson Procter (with portrait) .................................. i Charles Chree (with portrait) .........................- vii Sir Horace Darwin (with portrait) ................................ xv
Index .............I.................................................................. xix
Minutes of Meetings of January 17, 24, 1929.
This content downloaded from 130.132.123.28 on Mon, 5 May 2014 16:37:07 PMAll use subject to JSTOR Terms and Conditions
