CONTENTS.
SERIES A. VOL. CXII.
No. A 760 - August 3, 1926.
Researches on the Mode of Distribution of the Constants of Samples taken at Random from a Bivariate Normal Population. By K. Pearson, F.R.S.
1
Further Spectroscopie Studies on the Luminous Vapour Distilled from Metallic Ares. By Lord Rayleigh, F.R.S. (Plates 1-3.).
14
The Freezing of Gelatin Gel. By T. Moran. (Plate 4.) Communicated by Sir William Hardy. F.R.S.
30
A Microscopic Study of the Freezing of Gel. By Sir William Hardy, F.R.S. (Plate 5.)
47
Studies in Adhesion. - I. By Sir William Hardy, F.R.S., and M. Nottage.
62
Atomic States and Spectral Terms. By J. C. McLennan, F.R.S., A. B. McLay, and H. G. Smith.
76
On the Structure of the Are Spectrum of Gold. By J. C. McLennan, F.R.S., and A. B. McLay.
95
On the Series Spectra of Palladium. By J. C. McLennan, F.R.S., and H. G. Smith.
110
The Equilibrium of Heterogeneous Systems including Electrolytes. - Part I. Fundamental Equations and Phase Rule. By J. A. V. Butler. Communicated by Prof. F. G. Donnan, F.R.S.
129
An Investigation of the Effects of Variations in the Radiation Factor on the Efficiency of Dewar Vessels. By B. Lambert and K. T. Hartley. Communicated by Prof. F. Soddy, F.R.S.
136
On the Action of a Locomotive Driving Wheel. By F. W. Carter. Communicated by Prof. A. E. H. Love, F.R.S.
151
On the Specific Heat of Ferromagnetic Substances. By W. Sucksmith and H. H. Potter. Communicated by Prof. A. P. Chattock, F.R.S.
157
On the Change of Refractive Index of Linseed Oil in the Process of Drying and its Effect on the Deterioration of Oil Paintings. By A. P. Laurie. Communicated by Sir Arthur Schuster, F.R.S.
176
The Effect of Occluded Hydrogen on the Tensile Strength of Iron. By L. B. Pfeil. (Plates 6 and 7.) Communicated by Prof. H. C. H. Carpenter, F.R.S.
182
The Jnfra-red Secondary Spectrum of Hydrogen. By T. E. Allibone. (Plate 9.) Communicated by Prof. S. R. Milner, F.R.S.
196
A Further Note upon "Inter-traction." By Sir Almroth Wright, F.R.S. (Plate 9.)
213
The Molecular Fields of Hydrogen, Nitrogen and Neon. By J. E. Lennard-Jones and W. R. Cook. Communicated by Prof. S. Chapman, F.R.S.
214
The Forces between Atoms and Ions. By J. E. Lennard-Jones and B. M. Dent. Communicated by Prof. S. Chapman, F.R.S.
230
The Origin of the Electrical Charge on Small Particles in Water. By T. Alty. Communicated by Sir Joseph Thomson, F.R.S.
235
The Effect of Superposed Alternating Current on the Polarisable Primary Cell Zinc - Sulphuric Acid Carbon. Part II - High Frequency Current. By A. J. Allmand and H. C. Cocks. Communicated by Prof. S. Smiles, F.R.S.
252
The Polarization of Zinc Electrodes in Nentral and Acid Solutions of Zinc Salts by Direct and Alternating Currents - Part I. By A. J. Allmand and H. C. Cocks. Communicated by Prof. S. Smiles, F.R.S.
259
A Method of Studying the Behaviour of X-Ray Tubes. By R. C. Richards. Communicated by Prof. A. W. Porter, F.R.S.
280
Tensile Tests of Large Gold, Silver and Copper Crystals. By C. F. Elam. Communicated by Prof. H. C. H. Carpenter, F.R.S.
289
No. A 761 - September 1, 1926.
The Absorption of Gases by Charcoal. - I. By R. A. Smith, F.R.S.
296
A Comparison of the Records from British Magnetic Stations Underground and Surface. By C. Chree, F.R.S., and R. E. Watson.
304
On the Gyration of Light by Multiplet Lines. By C. G. Darwin, F.R.S.
314
The Distortion of Jron Crystals. By G. I. Taylor, F.R.S., and C. F. Elam. (Plates 10-12.).
337
The Structure of Thin Films. Part VIII - Expanded Films. By N. K. Adam and G. Jessop. Communicated by Sir William Hardy, F.R.S.
362
The Structure of Thin Films. Part IX - Dibasic Substances. By N. K. Adam and G. Jessop. Communicated by Sir William Hardy, F.R.S.
376
The Number of Particles in Beta-Ray spectra. II. - Thorium B and Thorium (B + C + D). By R. W. Gurney. Communicated by Sir Ernest Rutherford, Pres. R.S.
380
Experiments upon the Reported Transmutation of Mercury into Gold. By M. W. Garrett. Communicated by Prof. F. A. Lindemann, F.R.S.
391
The More Refrangible Band System of Cyanogen as Developed in Active Nitrogen. By W. Jevons. (Plates 13 and 14.) Communicated by Prof. A. Fowler, F.R.S.
407
Crystal Structure and Chemical Constitution of Basic Beryllium Acetate and its Homologues. By G. T. Morgan, F.R.S., and W. T. Astbury. (Plate 15).
441
The Structure and Isotrimorphism of the Tervalent Metallie Acetylacetones. By W. T. Astbury. Addendum by G. T. Morgan, F.R.S. Communicated by Sir William Bragg, F.R.S.
448
Change of Crystal Structure of Some Salts when Crystallised from Silicic Acid Gel. - The Structure of Silicic Acid Gel. By H. A. Fells and J. B. Firth. (Plates 16 and 17.) Communicated by Prof. F. S. Kipping. F.R.S.
468
No. A. 762 - October 1, 1926.
Studies upon Catalytic Combustion - Part III. The Influence of Steam upon the Catalytic Combustion of Carbonic Oxide. By William A. Bone, F.R.S.
474
Effects of Thermal Treatment on Glass as shown by Precise Viscometry. By Vahan H. Stott, D. Turner and H. A. Sloman. (Plates 18 and 19.) Communicated by Dr. W. Rosenhain, F.R.S.
499
Amplitude of Sound Waves in Pipes. By E. G. Richardson. Communicated by Prof. A. W. Porter, F.R.S.
522
The Solubility and Rate of Solution of Oxygen in Silver. By E. W. R. Steacie and F. M. G. Johnson. Communicated by Prof. A. S. Eve, F.R.S.
542
The Flexure of Thick Circular Plates. By C. A. Clemmow. Communicated by Prol. A. E. H. Love, F.R.S.
559
On the Total Photo-Electric Emission of Electrons from Metals as a Function of Temperature of the Exciting Radiation. By S. C. Roy. Communicated by Prof. O. W. Richardson, F.R.S.
599
The Crystal Structure of Meteoric Iron as determined by X-Ray Analysis. By J. Young. (Plate 20.) Communicated by Prof. S. W. J. Smith, F.R.S.
630
On the Excitation of Polarised Light by Electron Impact. By H. W. B. Skinner. (Plate 21.) Communicated by Sir Ernest Rutherford, Pres. R.S.
642
On the Theory of Quantrum Mechanics. By P. A. M. Dirac. Communicated by R. H. Fowler, F.R.S.
661
The Structure of g-Brass. By A. J. Bradley and J. Thewlis. Communicated by Prof. W. L. Bragg, F.R.S.
678
Index.
693