Volume InformationSource: Proceedings of the Royal Society of London. Series A, Containing Papers of aMathematical and Physical Character, Vol. 107, No. 744 (Apr. 1, 1925), pp. xiii-xviPublished by: The Royal SocietyStable URL: http://www.jstor.org/stable/94412 .

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x'Ilii

INDEX ro TOL. CVII. (A)

Address of the President, 1924, 1. Airscrew, vibrations in blades and shaft of (Fage), 451. Alpha-particles and ionisation in gases (Gurney), 332; stopping by gases (Gurney), 340. Allmand (A. J.) and Puri (V. S.) The Effect of Superposed Alternating Current on the

Polarisable Primary Cell Zinc--Suphuric Acid-Carbon. Part I: Low-frequency Current., 126.

Alternating current superposed on polarisable primary cell (Allmanid and Puri), 126. Alunminium, distortion of single-crystal pieces of (Carpenter and Elam), 171. Archimedean solids, development of (Thompson), .181. Atomic fields of helium and neon (Jones), 157.

Barfield (R. H.) See Smith-Rose and Barfield. Bismuth, fluorescence and channelled absorption (Rao), 760. Blackett (P. M. S.) The Ejection of Protons from Nitrogen Nuclei, photographed by the

Wilson Method, 349. Brinkworth (J. H.) On the Measurenient of the Ratio of the Specific Heats, using Small

Volumes of Gas.-The Ratios of the Specific Heats of Air and of Hydrogen, 510. Bucherer's experiments on e/m (Lewis), 544. Butterworth (S.) On the Alternating Current Resistance of Solenoidal Coils, 693.

Campbell (A.) On the Determination of Resistance in Terms of Mutual Inductance, 310. Campbell (J. E.) Obituary notice of, ix. Carpenter (H. C. H.) and Elam (C. F.) Experiments on the Distortion of Single-crystal

Test-pieces of Aluminium, 171. Chapman (D. L.), Ramsbottom (J. E.) and Trotman (C. G.) The Union of Hydrogen and

Oxygen in presence of Silver and Gold, 92. Colours due to films on metals (Evans), 228. Constable (F. H.) The Catalytic Action of Copper. Part VI.-An Explanation of the

Reproducibility of the Catalyst and of the Periodic Change in its Activity, &c., 270. Constable (F. H.) See Palmer and Constable. Copper, catalytic activity of (Palmer and Constable), 255, 270. Curtis (W. E.) The Fulcher Hydrogen Bands, 570.

Dean (W. R.) On the Theory of Elastic Stability, 734. Dielectrics, law of electrical conduction in (Richardson), 101. Dirac (P. A. M.) The Adiabatic Invariance of the Quantum Integrals, 725. Dobbie (Sir J.) Obituary notice of, vi. Dymond (E. G.) On the Precise Measurement of the Critical Potentials of Gases, 291.

Elam (C. F.) See Carpenter and Elam. Evans (U. R.) The Colours due to Thin Films on Metals, 228.

Fage (A.) An Experimental Study of the Vibrations in the Blades and Shaft of an Air- screw, 451.

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xlv

Farren (XV. S.) and Taylor (G. I.) The Heat developed during Plastic Extension of Metals, 422.

Fowler (A.) The Structure of the Spectrum of lonised Nitrogen, 31. Fuleher hydrogen bands (Curtis), 570.

Gases, mneasurement of critical potentials of (Dynond), 291. Gibbs (R. E.) The Variation with Temperature, of the Intensity of Reflection of X-rays

from Quartz, and its Bearing on the Crystal Structure, 561. Gurney (R. W.) lonisation by Alpha-particles in Monatomic and Diatomic Gases, 332

The Stopping-Power of Gases for Alpha-particles of Different Velocities, 340.

H1emoglobin, reduced, velocity of oxygen combining with (Hartridge and Roughton), 654. Hardy (G. H.) The Lattice Points of a Circle, 623. Hartridge (H.) and Roughton (F. J. WV.) The Kinetics of Haemoglobin. III.-The Velocity

with which Oxygen combines wi-th Reduced HEemoglobin, 654. 1leats, specific, mieasurement of ratio of (Brinkworth), 510. Helium and neon, atomic fields (Jones), 157. Hough (S. S.). Obituary notice of, i. Howard (J. V.) and Smith (S. L.) Recent Developments in Tensile Testing, 113. Hydrogen and oxygen, union in presence of silver and gold (Chapman and others), 92. H:ydrogen, regularities in secondary spectrum (Richardson and Tanaka), 602.

Ibbs (T. L.) Thermal Diffusion Measurements, 470. Indian and gallium spark-spectra on ultra-violet region (Weinberg), 138. Inductance, standard of mutual (Wilmotte), 716. Ingham (A. E.) See Jones and Ingham. Tonisation in gases by alpha-particles (Gurney), 332. Iron crystals, magnetic properties of (Webster), 496.

Jeffreys (H.) On the Formation of Water Waves by Wind, 189. Jones (J. E.) On the Atomic Fields of Helium and Neon, 157. Jones (J. E.), and Iugham (A. E.) On the Calculation of certain Crystal Potential

Constants and on the Cubic Crystal of Least Potential Energy, 636.

Kingdon (K. H.) See Langmuir and Kingdon.

Langmuir (J.) and Kingdon (K. H.) Thermionic Effects caused by Vapours of Alkali Metals, 61.

Lattice points of a circle (Hardy), 623. Lewis (T.) The Interpretation of the Results of BuLciherer's Experiments on C/m, 544. Light, total reflexion of (Schuster), lo.

Mann (F. G.) and Pope (Sir W. J.) I: I2 3-Triamninopropane and its Complex Metallic Compoulnds, 80.

MartniL (Lj. H.) See Stoner and Martin. Merton (T. R.) and Pilley (J. G.) On Experimnents relatino to the Spectrum of Nitrogen,

41 .' Metals, colours due to films on (Evans), 2'28; lheat developed durin, extension of (Farren

arnd Taylor), 422; thermal and electrical conductivities (Schofield), 206. Molecules, struicture of, in relation to optical anisotropv (R.,amanathan), 684. Mosharrafa (A. M.) On the Quaniturn Dynarmics of _Degenerate Systemns, 237.

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xv

Newbery (E.) Overvoltage and Transfer Resistance, 486. Nicholson (J. W.) Spheroidal Wave-functions, 43. Nitrogen, spectrum of ionised (Fowler), 31.

Obituary notices of Fellows deceased

Hough, S. S., i. Dobbie, Sir J., vi. Campbell, J. E., ix.

OOvervoltage and transfer resistance (Newbery), 486.

Palmer (WV. G-.) and Constable (F. H.) The Catalytic Activity of Copper. Part V.--The Comparison of the Rates of Dehydration of Variouis Alcohols, 255.

Pilley (J. G.) See Merton and Pilley. Pope (Sir WX. J.) See Mann and Pope. Protons, ejection from nitrogen nuclei, photographed (Blackett), 349. Puri (V. S.) See Allmand and Puri.

Quantum dynamics of degenerate systems (Mosharrafa), 237. Quantum integrals, adiabatic invariance of (Dirac), 725. Quartz, intensity of reflection of X-rays from, and bearing on crystal-structure (Gibbs),

544.

Ramanathan (K. R.) The Structure of Molecules in relation to their Optical Anisotropy -Part I., 684.

Ramsbottomn (J. E.) ,See Chapmian, Ramsbottom and Trotman. Rao (K. R.) O the Fluorescence and Channelled Absorption of Bismuth at High Tempera-

tures, 760 ; A Note on the Absorption of the Green Line of Thallium Vapour, 762. Refractory materials, electrically fused, making small pots of (Tritton), 287. Resistance in terms of mutual inductance (Campbell), 310. Richardson (O. W.) and Younlg (A. F. A.) The Thermionic Work-functions ,and Photo-

electric Thresholds of the Alkali Metals, 377. Richardson (0. WV.) and Tanaka (T.) Regularities in the Secondarv Spectrum of Hydrogen,

602. Richardson (S. W.) The General Law of Electrical Conduction in Dielectrics, 101. Roughton (F. J. WV.) See Hartridge and Roughton. Royal Society, life statistics of Fello-ws (Schuster), 368. Royds (T.) The Apparent Tripling of certain Lines in Arc Spectra, 360.

Schofield (F. H.) The Thermal and Electrical Conductivities of some Pure Metals, 206. Schuster (Sir A.) On the Total Reflexion of Light, 15; On the Life Statistics of Fellows

of the Royal Society, 368. Selincourt (M. de) On the Effect of Temperature on the Aniomalous PReflection of Silver,

247. Sherrington (Sir C.) Anniiversary address, 1924, 1. Silver, anomalous reflection of (Selincourt), 247. Smith (S. L.) See Howard and Smith. Smith-Rose (R. L.) and Barfield (R. H.) Oni the Determinationi of the Directions of the

Forces in Wireless Waves at the Earth's Surface, 587. Solenoidal coils, alternating currenit resistance of (Butterworth), 693. Spectra, tripling of lines in are (Royds), 360.

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xvi

Spectrum of ionised nitrogen (Fowler), 31; of nitrogen, experiments relating to (Merton and Pilley), 411.

Stability, theory of elastic (Dean), 734. Stoner (E. C.) and Martin (L. IL.) The Absorption of X-rays, 312.

Tanaka (T.) See Richardson and Tanaka. Taylor (G. 1.) See Farren and Taylor. Tensile testing, developments in (Howard and Sm-ith), 113. Thallium vapour, absorption of green line (Rao), 762. Thermal diffusion measurements (Ibbs), '71 0. Thiermionic effects by vapours of alkali metals (.Langmuir and Kingdon), 61. TI-termionic work-functions and photo-electric thiresholds of alkali metals (Richardson and

Youing), 377. Thom-pson (D'A. W.) On the 13 Semi-regular Solids of Archinimedes, and on their Develop--

inent by Transformation of certain Plane Configurations, 181. Triamiinopropane and metallic compounds (Al1ann and Pope), 80. Trittoin (F. S.) A Centrifugal Method of Making nSmall Pots of Electrically Fused Re-

fractory Materials, 287. Trotman (C. G.) See Chapman, Ramsbottoin and'rrotinan.

Wave-functions, spheroidal (Nicholson), 43. Waves, water, formation by wind (Jefreys), 189. Webster (W. L.) The Magnetic Properties of Iron Crystals, 496. Weinberg (M.) The Spark-spectra of Indian and Gallium in the Extreme Ultra-Violet

Region, 138. Wilmotte (R. M.) On the Field of Force near the Neutral Point produiced by Two Equal.

Coaxial Coils, with special referenice to the Campbell Standard of Mutual Inductance, 716.

Wireless waves, directions of forces in, at earth's surface (Smith-Rose and IBarfield), 587.

X-rays, absorption of (Stoner and Martin), 312; intensity of reflection of, from quartz. (Gibbs), 544.

Young (A. F. A.) See Richardsoin and Young.

EN1N OF THE ONE HU-NTDRED AND SEVENTH VOLUME (A SERIE.,)

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