Volume 74, Issue 4

August 1948

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ARTICLES

Nuclear Spins of the Carbon Isotopes

F. A. Jenkins

Phys. Rev. 74, 355 (1948) - Published 15 August, 1948

The Slow Neutron Cross Section of H

W. B. Jones, Jr.

Phys. Rev. 74, 364 (1948) - Published 15 August, 1948

Interatomic Distances and Nuclear Quadrupole Couplings in ClCN, BrCN, and ICN

A. G. Smith, Harold Ring, W. V. Smith, and Walter Gordy

Phys. Rev. 74, 370 (1948) - Published 15 August, 1948

Reaction Constants for ${Li}^{7} (p, n) {Be}^{7}$

Richard Taschek and Arthur Hemmendinger

Phys. Rev. 74, 373 (1948) - Published 15 August, 1948

The Influence of Relaxation on the Two Velocity Field Model of Helium II

William Band and Lothar Meyer

Phys. Rev. 74, 386 (1948) - Published 15 August, 1948

Relaxation Theory of Thermal Conduction in Helium II

Lothar Meyer and William Band

Phys. Rev. 74, 394 (1948) - Published 15 August, 1948

Resonances in ${Li}^{7} (p, n) {Be}^{7}$

G. Breit and I. Bloch

Phys. Rev. 74, 397 (1948) - Published 15 August, 1948

Angular Distribution of Alphas from ${Li}^{6} (d, α) α$ and ${Li}^{7} (p, α) α$

N. P. Heydenburg, C. M. Hudson, D. R. Inglis, and W. D. Whitehead, Jr.

Phys. Rev. 74, 405 (1948) - Published 15 August, 1948

Discharge Spread in Geiger Counters with Methane and Methane/Argon Fillings

C. Balakrishnan, J. D. Craggs, and A. A. Jaffe

Phys. Rev. 74, 410 (1948) - Published 15 August, 1948

Penetrating Particles in Extensive Air Showers

J. E. Treat and K. I. Greisen

Phys. Rev. 74, 414 (1948) - Published 15 August, 1948

The Beta- and Gamma-Spectra of Gallium Irradiated by Slow Neutrons

S. K. Haynes

Phys. Rev. 74, 423 (1948) - Published 15 August, 1948

Phenomenological Theory of Exchange Currents in Nuclei

R. G. Sachs

Phys. Rev. 74, 433 (1948) - Published 15 August, 1948

Relative Yields of Some X-Ray Induced Nuclear Reactions

M. L. Perlman and G. Friedlander

Phys. Rev. 74, 442 (1948) - Published 15 August, 1948

An Extension of the Polarizability Theory of Raman Effect

Frank Matossi and Robert Mayer

Phys. Rev. 74, 449 (1948) - Published 15 August, 1948

On the Classical Equations of Motion of Point Charges

Peter Havas

Phys. Rev. 74, 456 (1948) - Published 15 August, 1948

Letters to the Editor

The Photo-Voltaic Effect

K. Lehovec

Phys. Rev. 74, 463 (1948) - Published 15 August, 1948

ARTICLES

Theory of Elliptically Polarized Photons

Gentaro Araki

Phys. Rev. 74, 472 (1948) - Published 15 August, 1948

Measurements of Thomson Coefficients for Metals at High Temperatures and of Peltier Coefficients for Solid-Liquid Interfaces of Metals

J. J. Lander

Phys. Rev. 74, 479 (1948) - Published 15 August, 1948

Letters to the Editor

Magnetic Variable Stars as Sources of Cosmic Rays

Horace W. Babcock

Phys. Rev. 74, 489 (1948) - Published 15 August, 1948

Pulse Characteristics of Anthracene Scintillation Counters

Louis F. Wouters

Phys. Rev. 74, 489 (1948) - Published 15 August, 1948

Cloud-Chamber Study of Meson Disintegration

R. W. Thompson

Phys. Rev. 74, 490 (1948) - Published 15 August, 1948

Excitation Time of Silver-Activated Zinc Sulfide on Electron Bombardment

J. F. Mullaney, F. Reines, and H. G. Weiss

Phys. Rev. 74, 491 (1948) - Published 15 August, 1948

The Mean Life of Negative Mesotrons in Sulfur

Harold K. Ticho

Phys. Rev. 74, 492 (1948) - Published 15 August, 1948

Cosmic-Ray Showers Produced by Penetrating Particles

C. Y. Chao

Phys. Rev. 74, 492 (1948) - Published 15 August, 1948

Coincidences Between Beta-Rays and Conversion Electrons in Europium

K. Y. Chu and M. L. Wiedenbeck

Phys. Rev. 74, 494 (1948) - Published 15 August, 1948

Production of ${Li}^{8}$ in Boron-Loaded Photographic Emulsions

E. Pickup

Phys. Rev. 74, 495 (1948) - Published 15 August, 1948

Experiments on ${He}^{3}$ at Low Temperatures

J. G. Daunt, R. E. Probst, and S. R. Smith

Phys. Rev. 74, 495 (1948) - Published 15 August, 1948

The Concentration of Helium 3

Alan Andrew and W. R. Smythe

Phys. Rev. 74, 496 (1948) - Published 15 August, 1948

Fluctuations of Ionization and Low Energy Beta-Spectra

D. H. W. Kirkwood, B. Pontecorvo, and G. C. Hanna

Phys. Rev. 74, 497 (1948) - Published 15 August, 1948

The Magnetic Susceptibility of Uranium Tetrafluoride, ${UF}_{4}$

Norman Elliott

Phys. Rev. 74, 498 (1948) - Published 15 August, 1948

The Disintegration of ${Cs}^{137}$

J. Townsend, Marshall Cleland, and A. L. Hughes

Phys. Rev. 74, 499 (1948) - Published 15 August, 1948

A Note on Ethylene Self-Quenching G-M Counters

K. H. Morganstern, C. L. Cowan, and A. L. Hughes

Phys. Rev. 74, 499 (1948) - Published 15 August, 1948

ERRATA

Erratum: Electromagnetic Properties of Nuclei in the Meson Theory

S. T. Ma and F. C. Yu

Phys. Rev. 74, 500 (1948) - Published 15 August, 1948

Letters to the Editor

A Dynamic Method for the Determination of the Velocity Distribution of Thermal Atoms

Irving L. Kofsky and Henry Levinstein

Phys. Rev. 74, 500 (1948) - Published 15 August, 1948

On the Range of the Electrons in Meson Decay

J. Steinberger

Phys. Rev. 74, 500 (1948) - Published 15 August, 1948

Rate of Production of Helium in Meteorites by Cosmic Radiation

Carl August Bauer

Phys. Rev. 74, 501 (1948) - Published 15 August, 1948

Shape of the Positron Spectrum of $N^{13}$

C. S. Cook, L. M. Langer, H. C. Price, Jr., and M. B. Sampson

Phys. Rev. 74, 502 (1948) - Published 15 August, 1948

A Process Aiding the Capture of Electrons Injected Into a Betatron

D. W. Kerst

Phys. Rev. 74, 503 (1948) - Published 15 August, 1948

The Neutron Density in the Free Atmosphere up to 67,000 Feet

Luke C. L. Yuan

Phys. Rev. 74, 504 (1948) - Published 15 August, 1948

Neutron Absorption in Samarium

A. J. Dempster

Phys. Rev. 74, 505 (1948) - Published 15 August, 1948

The Origin of Elements and the Separation of Galaxies

G. Gamow

Phys. Rev. 74, 505 (1948) - Published 15 August, 1948

Pressure Broadening in Ammonia at Centimeter Wave-Lengths

Deforest F. Smith

Phys. Rev. 74, 506 (1948) - Published 15 August, 1948

On the Use of Nuclear Plates in a Magnetic Field

Ian G. Barbour

Phys. Rev. 74, 507 (1948) - Published 15 August, 1948

Concentration of ${He}^{3}$ by Evaporation of Liquid Helium at Temperatures Below the $λ$ -Point

B. V. Rollin and J. Hatton

Phys. Rev. 74, 508 (1948) - Published 15 August, 1948

Beta-Beta-Coincidence Curves for ${Ir}^{192}$ and ${Ta}^{182}$

M. V. Scherb and C. E. Mandeville

Phys. Rev. 74, 508 (1948) - Published 15 August, 1948

Disintegration of Mesotrons in $B^{10}$

Norris G. Nereson

Phys. Rev. 74, 509 (1948) - Published 15 August, 1948