Volume 75, Issue 10

May 1949

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ARTICLES

Characteristics of the Fission Product ${Cs}^{135}$

Nathan Sugarman

Phys. Rev. 75, 1473 (1949) - Published 15 May, 1949

On the $g_{J}$ Values of the Alkali Atoms

P. Kusch and H. Taub

Phys. Rev. 75, 1477 (1949) - Published 15 May, 1949

The Magnetic Moment of the Proton

H. Taub and P. Kusch

Phys. Rev. 75, 1481 (1949) - Published 15 May, 1949

Production of $π$ -Mesons in Nucleon-Nucleon Collisions

L. L. Foldy and R. E. Marshak

Phys. Rev. 75, 1493 (1949) - Published 15 May, 1949

Reactions Induced by Slow Neutron Irradiation of Europium

Richard J. Hayden, John H. Reynolds, and Mark G. Inghram

Phys. Rev. 75, 1500 (1949) - Published 15 May, 1949

An Interpretation of the Resonance Scattering of Neutrons by Cobalt in Terms of the Breit-Wigner Equation

F. G. P. Seidl

Phys. Rev. 75, 1508 (1949) - Published 15 May, 1949

Relativistic Terms in the Interaction between Nucleons in Pseudoscalar and Vector Meson Theory

L. Van Hove

Phys. Rev. 75, 1519 (1949) - Published 15 May, 1949

The Microwave Absorption Spectrum of Oxygen

M. W. P. Strandberg, C. Y. Meng, and J. G. Ingersoll

Phys. Rev. 75, 1524 (1949) - Published 15 May, 1949

Radiations from ${Ge}^{77}$ and ${Ge}^{71}$

C. E. Mandeville, Y. H. Woo, M. V. Scherb, W. B. Keighton, and E. Shapiro

Phys. Rev. 75, 1528 (1949) - Published 15 May, 1949

Neutrons in the Extensive Air Showers of the Cosmic Radiation

Vanna Cocconi Tongiorgi

Phys. Rev. 75, 1532 (1949) - Published 15 May, 1949

Analysis of Neutrons in Extensive Showers

Joseph S. Levinger

Phys. Rev. 75, 1540 (1949) - Published 15 May, 1949

Precision Measurements of Gamma-Rays from $I^{131}$ with the 2-Meter Focusing Curved Crystal Spectrometer

David A. Lind, James Brown, David Klein, David Muller, and Jesse DuMond

Phys. Rev. 75, 1544 (1949) - Published 15 May, 1949

On the Origin of Solar Radio Noise

Andrew V. Haeff

Phys. Rev. 75, 1546 (1949) - Published 15 May, 1949

Transmission of Elastic Pulses in Metal Rods

D. S. Hughes, W. L. Pondrom, and R. L. Mims

Phys. Rev. 75, 1552 (1949) - Published 15 May, 1949

Ferromagnetic Resonance at Microwave Frequencies in an Iron Single Crystal

Arthur F. Kip and Robert D. Arnold

Phys. Rev. 75, 1556 (1949) - Published 15 May, 1949

Equations of State of Elements Based on the Generalized Fermi-Thomas Theory

R. P. Feynman, N. Metropolis, and E. Teller

Phys. Rev. 75, 1561 (1949) - Published 15 May, 1949

On the Wave Equation with Small Quantum Numbers

Rudolph E. Langer

Phys. Rev. 75, 1573 (1949) - Published 15 May, 1949

Quantum-Theory Restrictions on the General Theory of Relativity

M. F. M. Osborne

Phys. Rev. 75, 1579 (1949) - Published 15 May, 1949

Theoretical Analysis of Ionization Chamber Data on Large Air Showers

John M. Blatt

Phys. Rev. 75, 1584 (1949) - Published 15 May, 1949

Thermionic and Photoelectric Emission with Moderate Applied Electric Fields, Employing a Two-Step Potential Barrier

Thomas H. Jacobi

Phys. Rev. 75, 1599 (1949) - Published 15 May, 1949

What Led to the Founding of the American Physical Society

Frederick Bedell

Phys. Rev. 75, 1601 (1949) - Published 15 May, 1949

Letters to the Editor

The Polarization of Starlight by Interstellar Dust Particles in a Galactic Magnetic Field

Leverett Davis, Jr. and Jesse L. Greenstein

Phys. Rev. 75, 1605 (1949) - Published 15 May, 1949

Erratum: Phenomenological Theory of Exchange Currents in Nuclei

R. G. Sachs

Phys. Rev. 75, 1605 (1949) - Published 15 May, 1949

Measurement of the Internal Friction of Solids

R. Kamel

Phys. Rev. 75, 1606 (1949) - Published 15 May, 1949

Absence of Photo-Conductivity in Tungstate Phosphors

Clifford C. Klick and James H. Schulman

Phys. Rev. 75, 1606 (1949) - Published 15 May, 1949

Infra-Red Absorption of Oxygen and Nitrogen Induced by Intermolecular Forces

M. F. Crawford, H. L. Welsh, and J. L. Locke

Phys. Rev. 75, 1607 (1949) - Published 15 May, 1949

On the Transmission Coefficient of a Circular Aperture

C. J. Bouwkamp

Phys. Rev. 75, 1608 (1949) - Published 15 May, 1949

On the Transmission Coefficient of a Circular Aperture

Harold Levine and Julian Schwinger

Phys. Rev. 75, 1608 (1949) - Published 15 May, 1949

Two-Component Wave Equations

Herbert Jehle

Phys. Rev. 75, 1609 (1949) - Published 15 May, 1949

Neutron Diffraction by Gases

N. Z. Alcock and D. G. Hurst

Phys. Rev. 75, 1609 (1949) - Published 15 May, 1949

Inelastic Scattering of 14.5-Mev Neutrons by Lead

H. T. Gittings, H. H. Barschall, and G. G. Everhart

Phys. Rev. 75, 1610 (1949) - Published 15 May, 1949

On the Question of Atmospheric Ammonia

M. V. Migeotte and R. M. Chapman

Phys. Rev. 75, 1611 (1949) - Published 15 May, 1949

ERRATA

Erratum: The Detection of Gamma-Rays with Thallium-Activated Sodium Iodide Crystals

Robert Hofstadter

Phys. Rev. 75, 1611 (1949) - Published 15 May, 1949

Letters to the Editor

Beryllium-Proton Reactions and Scattering

R. G. Thomas, S. Rubin, W. A. Fowler, and C. C. Lauritsen

Phys. Rev. 75, 1612 (1949) - Published 15 May, 1949

Radioactive Silver Isotopes Produced by Photo-Disintegration of Cadmium

R. B. Duffield and J. D. Knight

Phys. Rev. 75, 1613 (1949) - Published 15 May, 1949

Microwave Resonance Absorption in a Paramagnetic Organic Compound

A. N. Holden, C. Kittel, F. R. Merritt, and W. A. Yager

Phys. Rev. 75, 1614 (1949) - Published 15 May, 1949

LETTERS

LETTER

Strings, Poles, and the Electron

John A. Eldridge

Phys. Rev. 75, 1614 (1949) - Published 15 May, 1949

Letters to the Editor

Search for the Transition of Streamer to Townsend Form of Spark in Air

L. H. Fisher and B. Bederson

Phys. Rev. 75, 1615 (1949) - Published 15 May, 1949

Decay of 8-Day ${Iodine}^{131}$ to a Metastable State of ${Xenon}^{131}$

A. R. Brosi, T. W. DeWitt, and H. Zeldes

Phys. Rev. 75, 1615 (1949) - Published 15 May, 1949

A Time-of-Flight Mass Spectrometer with Varying Field

J. A. Hipple and H. A. Thomas

Phys. Rev. 75, 1616 (1949) - Published 15 May, 1949

Search for Stable ${Pd}^{100}$ , $W^{178}$ , and ${Pb}^{202}$

Henry E. Duckworth, Robert F. Black, and Richard F. Woodcock

Phys. Rev. 75, 1616 (1949) - Published 15 May, 1949

Concentrating Holes and Electrons by Magnetic Fields

H. Suhl and W. Shockley

Phys. Rev. 75, 1617 (1949) - Published 15 May, 1949

Angular Correlations in Successive Nuclear $α - γ$ -Emission and the Excited State of ${Li}^{7}$

Bernard T. Feld

Phys. Rev. 75, 1618 (1949) - Published 15 May, 1949

Stars Built on the Shell Source Model

Chushiro Hayashi

Phys. Rev. 75, 1619 (1949) - Published 15 May, 1949

Discrepancies between Physically and Chemically Determined Atomic Weights for the Elements between Silver 47 and Iodine 53

J. R. White and J. H. Buck

Phys. Rev. 75, 1619 (1949) - Published 15 May, 1949

The Forces between Ammonia Molecules and the Second Virial Coefficient for Ammonia

Vernon Myers

Phys. Rev. 75, 1620 (1949) - Published 15 May, 1949

Solid Solubility Effect of Metallic Surface Friction

Kwai Umeda and Yoshihiro Nakano

Phys. Rev. 75, 1621 (1949) - Published 15 May, 1949

The Electron Spectrum of ${Iodine}^{131}$

J. M. Cork, H. B. Keller, J. Sazynski, W. C. Rutledge, and A. E. Stoddard

Phys. Rev. 75, 1621 (1949) - Published 15 May, 1949

Microwave Absorption of Some Organic Vapors

Börge Bak, Erik Stenberg Knudsen, and Erhardt Madsen

Phys. Rev. 75, 1622 (1949) - Published 15 May, 1949

On the External Polarization of the Vacuum

Hartland S. Snyder

Phys. Rev. 75, 1623 (1949) - Published 15 May, 1949

Proceedings of the American Physical Society

Minutes of the Meeting at Cleveland, March 10-12, 1949

Phys. Rev. 75, 1624 (1949) - Published 15 May, 1949

Minutes of the Meeting of the Metropolitan Section at the Bell Telephone Laboratories, Murray Hill, New Jersey on March 25, 1949

Phys. Rev. 75, 1635 (1949) - Published 15 May, 1949