Volume 79, Issue 6

September 1950

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ARTICLES

Wide Angle Sprays Produced by Cosmic Radiation

R. Ronald Rau and G. G. Harris

Phys. Rev. 79, 915 (1950) - Published 15 September, 1950

On the Use of the Tomonaga Intermediate Coupling Method in Meson Theory

Kenneth M. Watson and Edward W. Hart

Phys. Rev. 79, 918 (1950) - Published 15 September, 1950

The Intensity and Masses of Cosmic-Ray Particles

T. C. Merkle, Jr., E. L. Goldwasser, and Robert B. Brode

Phys. Rev. 79, 926 (1950) - Published 15 September, 1950

Reaction Constants for $T^{3} (p, n) {He}^{3}$

G. A. Jarvis, A. Hemmendinger, H. V. Argo, and R. F. Taschek

Phys. Rev. 79, 929 (1950) - Published 15 September, 1950

Nuclear Energy Levels in Lead Isotopes

R. E. Peterson, R. K. Adair, and H. H. Barschall

Phys. Rev. 79, 935 (1950) - Published 15 September, 1950

Radioactivity from Enriched Isotopes of Cadmium

J. M. Cork, W. C. Rutledge, A. E. Stoddard, C. E. Branyan, and J. M. LeBlanc

Phys. Rev. 79, 938 (1950) - Published 15 September, 1950

Scintillation Studies on Potassium Iodide

B. Smaller, J. May, and M. Freedman

Phys. Rev. 79, 940 (1950) - Published 15 September, 1950

Microwave Determinations of Average Electron Energies and the First Townsend Coefficient in Hydrogen

Lawrence J. Varnerin, Jr. and Sanborn C. Brown

Phys. Rev. 79, 946 (1950) - Published 15 September, 1950

On Nuclear Evaporation in Cosmic Rays and the Absorption of the Nucleonic Component. II.

G. Bernardini, G. Cortini, and A. Manfredini

Phys. Rev. 79, 952 (1950) - Published 15 September, 1950

Photoelectric Emission from $F$ -Centers in KI

L. Apker and E. Taft

Phys. Rev. 79, 964 (1950) - Published 15 September, 1950

Electromagnetic Forces on a Superconductor

W. V. Houston and N. Muench

Phys. Rev. 79, 967 (1950) - Published 15 September, 1950

Electron Conductivity and Mean Free Paths

Fred P. Adler and Henry Margenau

Phys. Rev. 79, 970 (1950) - Published 15 September, 1950

The S-Matrix in the Heisenberg Representation

C. N. Yang and David Feldman

Phys. Rev. 79, 972 (1950) - Published 15 September, 1950

Effect of Inclusions on Coercive Force of Iron

L. J. Dijkstra and C. Wert

Phys. Rev. 79, 979 (1950) - Published 15 September, 1950

On the Quantization of Einstein's Gravitational Field Equations

F. A. E. Pirani and A. Schild

Phys. Rev. 79, 986 (1950) - Published 15 September, 1950

Effects of Plasma Boundaries in Plasma Oscillations

D. Bohm and E. P. Gross

Phys. Rev. 79, 992 (1950) - Published 15 September, 1950

Letters to the Editor

On Spin Dependent Nuclear "Radii"

C. O. Muehlhause

Phys. Rev. 79, 1002 (1950) - Published 15 September, 1950

The Generation of Vacancies by Dislocations

Frederick Seitz

Phys. Rev. 79, 1002 (1950) - Published 15 September, 1950

Spiral Prismatic Dislocations and the Origin of Slip Bands

Frederick Seitz

Phys. Rev. 79, 1003 (1950) - Published 15 September, 1950

The $2.7 μ$ -Bands of Carbon Dioxide

Robert Jones and Ely E. Bell

Phys. Rev. 79, 1004 (1950) - Published 15 September, 1950

Cross-over Transitions in ${Ir}^{194}$ , ${Ag}^{110}$ , ${Cs}^{134}$

Richard Wilson

Phys. Rev. 79, 1004 (1950) - Published 15 September, 1950

On Time-Independent Integrals of Motion of the One-Body Problem in Dirac Theory

A. W. Sáenz

Phys. Rev. 79, 1004 (1950) - Published 15 September, 1950

Superconductivity and Debye Modes

William Band

Phys. Rev. 79, 1005 (1950) - Published 15 September, 1950

Erratum: Range-Energy Relations for Protons in Substances Containing C, H, O, A, and Xe

J. O. Hirschfelder and J. L. Magee

Phys. Rev. 79, 1005 (1950) - Published 15 September, 1950

Erratum: The Bohr Formula for the Rydberg Constant

Raymond T. Birge

Phys. Rev. 79, 1005 (1950) - Published 15 September, 1950

Extensive Air Showers and Total Cosmic Radiation

G. Cocconi

Phys. Rev. 79, 1006 (1950) - Published 15 September, 1950

Disintegration Scheme of ${Scandium}^{46}$

B. N. Sorensen, B. M. Dale, and J. D. Kurbatov

Phys. Rev. 79, 1007 (1950) - Published 15 September, 1950

The Microwave Spectrum of BrCl

D. F. Smith, M. Tidwell, and D. V. P. Williams

Phys. Rev. 79, 1007 (1950) - Published 15 September, 1950

Transport Rates of the Liquid He II Film over Various Surfaces

H. A. Boorse and J. G. Dash

Phys. Rev. 79, 1008 (1950) - Published 15 September, 1950

Displacement of Oxygen in BaTi $O_{3}$

Edwin T. Jaynes

Phys. Rev. 79, 1008 (1950) - Published 15 September, 1950

On the Hyperfine Structure of Hydrogen and Deuterium

A. G. Prodell and P. Kusch

Phys. Rev. 79, 1009 (1950) - Published 15 September, 1950

The Nuclear Magnetic Moment of ${Scandium}^{45}$

Norman F. Ramsey

Phys. Rev. 79, 1010 (1950) - Published 15 September, 1950

Gamma-Rays of ${Ag}^{105}$ and ${Ag}^{106}$

J. Y. Mei, C. M. Huddleston, and Allan C. G. Mitchell

Phys. Rev. 79, 1010 (1950) - Published 15 September, 1950

Detection of Scintillations from Crystals with a Photo-Sensitive Geiger-Müller Counter

C. E. Mandeville and H. O. Albrecht

Phys. Rev. 79, 1010 (1950) - Published 15 September, 1950

Radioactivities of ${Nb}^{99}$ , ${Ta}^{185}$ , and $W^{185}$ , and the Relative ( $γ, n$ ) and ( $γ, p$ ) Cross Sections of ${Mo}^{100}$

R. B. Duffield, L. Hsiao, and E. N. Sloth

Phys. Rev. 79, 1011 (1950) - Published 15 September, 1950

Changes in the Activation Energy of Tellurium

T. S. Moss

Phys. Rev. 79, 1011 (1950) - Published 15 September, 1950

Boride Cathodes

J. M. Lafferty

Phys. Rev. 79, 1012 (1950) - Published 15 September, 1950

On the Spins of ${Li}^{6}$ and $B^{10}$

G. Racah and N. Zeldes

Phys. Rev. 79, 1012 (1950) - Published 15 September, 1950

Neutral Impurity Scattering in Semiconductors

Cavid Erginsoy

Phys. Rev. 79, 1013 (1950) - Published 15 September, 1950

Electron Capture/Beta-Decay Ratio in $K^{40}$

T. Gráf

Phys. Rev. 79, 1014 (1950) - Published 15 September, 1950

A Note on 11.5-Day ${Tl}^{202}$

Geoffrey Wilkinson

Phys. Rev. 79, 1014 (1950) - Published 15 September, 1950

Induced Absorption Bands in MgO Crystals

J. P. Molnar and C. D. Hartman

Phys. Rev. 79, 1015 (1950) - Published 15 September, 1950

Further Studies of Infra-Red Absorption by Homopolar Diatomic Molecules

Robert Van Asselt and Dudley Williams

Phys. Rev. 79, 1016 (1950) - Published 15 September, 1950

Total Charges of Fission Fragments in Gaseous and Solid Media

N. O. Lassen

Phys. Rev. 79, 1016 (1950) - Published 15 September, 1950

Improved Map of the Solar Spectrum between 9 and $10 μ$

J. H. Shaw, R. M. Chapman, and J. N. Howard

Phys. Rev. 79, 1017 (1950) - Published 15 September, 1950

Neutron Scattering Resonances of Lithium

Robert K. Adair

Phys. Rev. 79, 1018 (1950) - Published 15 September, 1950

Nuclear Dipole Vibrations

Helmut Steinwedel, J. Hans D. Jensen, and Peter Jensen

Phys. Rev. 79, 1019 (1950) - Published 15 September, 1950

Proton Density Variation in Nuclei

Helmut Steinwedel and Michael Danos

Phys. Rev. 79, 1019 (1950) - Published 15 September, 1950

The Acceleration of Dust Grains by Supernovae

Bertram Wolfe, P. Mc. R. Routly, A. S. Wightman, and L. Spitzer, Jr.

Phys. Rev. 79, 1020 (1950) - Published 15 September, 1950

Superconductivity of Columbium Nitride

D. B. Cook, M. W. Zemansky, and H. A. Boorse

Phys. Rev. 79, 1021 (1950) - Published 15 September, 1950

Nuclear Isomerism and Shell Structure

R. D. Hill

Phys. Rev. 79, 1021 (1950) - Published 15 September, 1950

Scattering of Protons by Carbon

W. D. Whitehead

Phys. Rev. 79, 1022 (1950) - Published 15 September, 1950

Note on the Hall Potential Across an Inhomogeneous Conductor

J. Volger

Phys. Rev. 79, 1023 (1950) - Published 15 September, 1950

The Thermodynamics of Liquid Helium of ${He}^{3}$ — ${He}^{4}$ Solutions

O. K. Rice

Phys. Rev. 79, 1024 (1950) - Published 15 September, 1950

A Mixed Shower of Nuclear Origin

M. S. Sinha

Phys. Rev. 79, 1025 (1950) - Published 15 September, 1950

Study of High Polymers by Nuclear Magnetism I. Line Widths at Room Temperature

L. V. Holroyd, B. A. Mrowca, and E. Guth

Phys. Rev. 79, 1026 (1950) - Published 15 September, 1950

Study of High Polymers by Nuclear Magnetism II. Line Widths through Transition Temperatures

B. A. Mrowca, L. V. Holroyd, and E. Guth

Phys. Rev. 79, 1026 (1950) - Published 15 September, 1950

On the Nature of a Soldered Contact on a Semiconductor

Jacques I. Pantchechnikoff

Phys. Rev. 79, 1027 (1950) - Published 15 September, 1950

Atomic Heat of Indium at Liquid Helium Temperatures

J. R. Clement and E. H. Quinnell

Phys. Rev. 79, 1028 (1950) - Published 15 September, 1950

The Thermoelectromotive Force of Tin at the Superconducting-Normal Junction

R. T. Webber and M. C. Steele

Phys. Rev. 79, 1028 (1950) - Published 15 September, 1950

Decay of ${Hg}^{197}$

H. Frauenfelder, O. Huber, A. de-Shalit, and W. Zünti

Phys. Rev. 79, 1029 (1950) - Published 15 September, 1950

Electron Spectrum of ${Pa}^{233}$

H. B. Keller and J. M. Cork

Phys. Rev. 79, 1030 (1950) - Published 15 September, 1950

Superfluidity and Thermomechanical Effect in the Absorbed Helium II Film

Earl Long and Lothar Meyer

Phys. Rev. 79, 1031 (1950) - Published 15 September, 1950

Gamma-Spectrum of ${Ta}^{182}$

F. E. O'Meara

Phys. Rev. 79, 1032 (1950) - Published 15 September, 1950

Radioactivity of ${Ni}^{59}$ and ${Ni}^{63}$

H. W. Wilson

Phys. Rev. 79, 1032 (1950) - Published 15 September, 1950