Volume 79, Issue 1

July 1950

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John Torrence Tate

Phys. Rev. 79, 1 (1950) - Published 1 July, 1950

ARTICLES

Delayed Neutrons from $U^{238}$ and ${Th}^{232}$ Fission

K. H. Sun, R. A. Charpie, F. A. Pecjak, B. Jennings, J. F. Nechaj, and A. J. Allen

Phys. Rev. 79, 3 (1950) - Published 1 July, 1950

Angular Distributions of Ground-State Protons from $B^{10}$ +D

W. C. Redman

Phys. Rev. 79, 6 (1950) - Published 1 July, 1950

Low Energy Neutron Resonance Scattering and Absorption

S. P. Harris, C. O. Muehlhause, and G. E. Thomas

Phys. Rev. 79, 11 (1950) - Published 1 July, 1950

The Disintegration of ${As}^{72}$

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

Phys. Rev. 79, 19 (1950) - Published 1 July, 1950

The Detection of Positron-Conjoint Nuclear Gamma-Radiation

Herbert E. Kubitschek

Phys. Rev. 79, 23 (1950) - Published 1 July, 1950

Total Neutron Cross Section of Vanadium from 10 to 1000 Kev

J. Morris Blair and J. R. Wallace

Phys. Rev. 79, 28 (1950) - Published 1 July, 1950

Consistency of Nuclear Radii of Even-Even Nuclei from Alpha-Decay Theory

I. Perlman and T. J. Ypsilantis

Phys. Rev. 79, 30 (1950) - Published 1 July, 1950

On the Magnetic Moments of ${Tl}^{203}$ , ${Tl}^{205}$ , ${Sn}^{115}$ , ${Sn}^{117}$ , ${Sn}^{119}$ , ${Cd}^{111}$ , ${Cd}^{113}$ , and ${Pb}^{207}$

W. G. Proctor

Phys. Rev. 79, 35 (1950) - Published 1 July, 1950

Negative Energy Neutron Resonance in ${Cl}^{35}$

C. T. Hibdon and C. O. Muehlhause

Phys. Rev. 79, 44 (1950) - Published 1 July, 1950

Lambda-Temperatures of Solutions of ${He}^{3}$ in ${He}^{4}$ below 1°K

J. G. Daunt and C. V. Heer

Phys. Rev. 79, 46 (1950) - Published 1 July, 1950

On the Azimuthal Asymmetry of Cosmic-Ray Intensity above the Atmosphere at the Geomagnetic Equator

J. A. Van Allen and A. V. Gangnes

Phys. Rev. 79, 51 (1950) - Published 1 July, 1950

Microwave Spectra and Molecular Structures of Methyl Cyanide and Methyl Isocyanide

Myer Kessler, Harold Ring, Ralph Trambarulo, and Walter Gordy

Phys. Rev. 79, 54 (1950) - Published 1 July, 1950

The Scattering of Protons by Protons near 30 Mev, Photographic Method

Wolfgang K. H. Panofsky and Franklin L. Fillmore

Phys. Rev. 79, 57 (1950) - Published 1 July, 1950

Announcement

Phys. Rev. 79, 70 (1950) - Published 1 July, 1950

ARTICLES

Proton-Proton Scattering at 31.8 Mev, Proportional Counter Method

Bruce Cork, Lawrence Johnston, and Chaim Richman

Phys. Rev. 79, 71 (1950) - Published 1 July, 1950

Proton-Proton Scattering at 340 Mev

Owen Chamberlain and Clyde Wiegand

Phys. Rev. 79, 81 (1950) - Published 1 July, 1950

The Proton-Proton Interaction

R. S. Christian and H. P. Noyes

Phys. Rev. 79, 85 (1950) - Published 1 July, 1950

Experiments on $N - P$ Scattering with 260-Mev Neutrons

E. Kelly, C. Leith, E. Segrè, and C. Wiegand

Phys. Rev. 79, 96 (1950) - Published 1 July, 1950

Proton Groups from the Deuteron Bombardment of Aluminum, Sodium, and Manganese

W. D. Whitehead and N. P. Heydenburg

Phys. Rev. 79, 99 (1950) - Published 1 July, 1950

Radiations of ${Zr}^{97}$ and ${Nb}^{97}$

W. H. Burgus, J. D. Knight, and R. J. Prestwood

Phys. Rev. 79, 104 (1950) - Published 1 July, 1950

Low Energy Alpha-Particles from Fluorine Bombarded by Protons

C. Y. Chao, A. V. Tollestrup, W. A. Fowler, and C. C. Lauritsen

Phys. Rev. 79, 108 (1950) - Published 1 July, 1950

On the Magnetic Shielding in He and $H_{2}$

Egil Hylleraas and S. Skavlem

Phys. Rev. 79, 117 (1950) - Published 1 July, 1950

On the Energy-Momentum Tensor of the Electron

F. Villars

Phys. Rev. 79, 122 (1950) - Published 1 July, 1950

Microwave Collision Diameters I. Experimental

Raydeen R. Howard and William V. Smith

Phys. Rev. 79, 128 (1950) - Published 1 July, 1950

Microwave Collision Diameters II. Theory and Correlation with Molecular Quadrupole Moments

William V. Smith and Raydeen Howard

Phys. Rev. 79, 132 (1950) - Published 1 July, 1950

Polarization of Neutrons and Protons by Scattering

Joseph V. Lepore

Phys. Rev. 79, 137 (1950) - Published 1 July, 1950

Electrical Resistance of Thoria

W. E. Danforth and F. H. Morgan

Phys. Rev. 79, 142 (1950) - Published 1 July, 1950

On Field Theories with Non-Localized Action

A. Pais and G. E. Uhlenbeck

Phys. Rev. 79, 145 (1950) - Published 1 July, 1950

Letters to the Editor

Wave-Length of the Transauroral Line of Oxygen

N. D. Sayers and K. G. Emeleus

Phys. Rev. 79, 166 (1950) - Published 1 July, 1950

Neutron-Proton Capture and Coherent Scattering Amplitudes

Lamek Hulthén

Phys. Rev. 79, 166 (1950) - Published 1 July, 1950

The Hyperfine Structure of ${Ni}^{61}$

Karl G. Kessler

Phys. Rev. 79, 167 (1950) - Published 1 July, 1950

On the Origin of the Sodium $D$ Lines during Twilight

F. D. Kahn

Phys. Rev. 79, 167 (1950) - Published 1 July, 1950

Zero-Point Vibrations and Superconductivity

J. Bardeen

Phys. Rev. 79, 167 (1950) - Published 1 July, 1950

On the Production of Penetrating Showers in Lead and Carbon

L. Mezzetti and R. Querzoli

Phys. Rev. 79, 168 (1950) - Published 1 July, 1950

Beta-Gamma and Gamma-Gamma Angular Correlation Experiments on ${Sb}^{124}$

J. R. Beyster and M. L. Wiedenbeck

Phys. Rev. 79, 169 (1950) - Published 1 July, 1950

Angular Correlation in the Reaction $F^{19} (p, α) O^{16 *} (γ) O^{16}$

W. R. Arnold

Phys. Rev. 79, 170 (1950) - Published 1 July, 1950

Photo-Conductivity in Amorphous Selenium

Paul K. Weimer

Phys. Rev. 79, 171 (1950) - Published 1 July, 1950

Electron Bombardment Induced Conductivity in Selenium

L. Pensak

Phys. Rev. 79, 171 (1950) - Published 1 July, 1950

Gamma-Ray Spectra from $B^{10}$ , $B^{11}$ , and ${Be}^{9}$ under Proton Bombardment

R. L. Walker

Phys. Rev. 79, 172 (1950) - Published 1 July, 1950

Superconductivity of ${Sn}^{124}$

Emanuel Maxwell

Phys. Rev. 79, 173 (1950) - Published 1 July, 1950

Measurement of the Gamma-Ray Energy of $K^{40}$

P. R. Bell and Judith M. Cassidy

Phys. Rev. 79, 173 (1950) - Published 1 July, 1950

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

Robert E. Sheriff and Dudley Williams

Phys. Rev. 79, 175 (1950) - Published 1 July, 1950

The Half-Life of ${Strontium}^{90}$

Ruth I. Powers and A. F. Voigt

Phys. Rev. 79, 175 (1950) - Published 1 July, 1950

The Angular Distribution of Protons from the $B (α, p) C$ , $C^{*}$ Reaction

J. L. Perkin

Phys. Rev. 79, 175 (1950) - Published 1 July, 1950

Theoretical Hall Coefficient Expressions for Impurity Semiconductors

V. A. Johnson and K. Lark-Horovitz

Phys. Rev. 79, 176 (1950) - Published 1 July, 1950

Cosmic-Ray Intensity in the Upper Atmosphere

M. Panetti and G. Wataghin

Phys. Rev. 79, 177 (1950) - Published 1 July, 1950

Rise Times of Voltage Pulses from Photo-Multipliers

O. Martinson, P. Isaacs, H. Brown, and I. W. Ruderman

Phys. Rev. 79, 178 (1950) - Published 1 July, 1950

Altitude Dependence of Neutron Production by Cosmic-Ray Particles

W. B. Fowler

Phys. Rev. 79, 178 (1950) - Published 1 July, 1950

On the Shift of the Nuclear Magnetic Resonance in Paramagnetic Solutions

N. Bloembergen and W. C. Dickinson

Phys. Rev. 79, 179 (1950) - Published 1 July, 1950

Coincidence Studies of the Disintegration of ${Sc}^{44}$

William H. Cuffey

Phys. Rev. 79, 180 (1950) - Published 1 July, 1950

Ferromagnetic Resonance in Manganese Ferrite and the Theory of the Ferrites

Charles Guillaud, W. A. Yager, F. R. Merritt, and C. Kittel

Phys. Rev. 79, 181 (1950) - Published 1 July, 1950

Isomerism in ${Pb}^{204}$ and "Memory" in Angular Correlation

A. W. Sunyar, D. Alburger, G. Friedlander, M. Goldhaber, and G. Scharff-Goldhaber

Phys. Rev. 79, 181 (1950) - Published 1 July, 1950

The Ejection of ${Li}^{8}$ Nuclei by Gamma-Rays

C. H. Millar and A. G. W. Cameron

Phys. Rev. 79, 182 (1950) - Published 1 July, 1950

The Hydromagnetic Equations

Walter M. Elsasser

Phys. Rev. 79, 183 (1950) - Published 1 July, 1950

Latitude Effects for Stars. I. Production Rates and Prong Distributions

E. O. Salant, J. Hornbostel, C. B. Fisk, and J. E. Smith

Phys. Rev. 79, 184 (1950) - Published 1 July, 1950

Latitude Effects for Stars. II. Shower Particles

E. O. Salant, J. Hornbostel, C. B. Fisk, and J. E. Smith

Phys. Rev. 79, 184 (1950) - Published 1 July, 1950

On High Energy Nucleon-Nucleon Scattering

K. M. Case and A. Pais

Phys. Rev. 79, 185 (1950) - Published 1 July, 1950

Supersonic Wind at Low Pressures Produced by Arc in Magnetic Field

H. C. Early and W. G. Dow

Phys. Rev. 79, 186 (1950) - Published 1 July, 1950

The Production of Neutral Mesons by Photons

K. A. Brueckner and K. M. Watson

Phys. Rev. 79, 187 (1950) - Published 1 July, 1950

Neutron Spectrum for Protons on ${Be}^{9}$

V. R. Johnson, F. Ajzenberg, and M. J. Wilson Laubenstein

Phys. Rev. 79, 187 (1950) - Published 1 July, 1950

Masses of ${Si}^{30}$ , ${Co}^{59}$ , ${Ni}^{60}$ , ${Zr}^{90}$ , ${Mo}^{96}$ and ${Mo}^{100}$

Henry E. Duckworth, Richard S. Preston, and Karl S. Woodcock

Phys. Rev. 79, 188 (1950) - Published 1 July, 1950

The Microwave Rotational Spectrum and Structure of Bromogermane

A. Harry Sharbaugh, Benjamin S. Pritchard, Virginia G. Thomas, John M. Mays, and Benjamin P. Dailey

Phys. Rev. 79, 189 (1950) - Published 1 July, 1950

Preliminary Analysis of the Microwave Spectrum of Ketene

B. Bak, E. Stenberg Knudsen, E. Madsen, and J. Rastrup-Andersen

Phys. Rev. 79, 190 (1950) - Published 1 July, 1950

Current Fluctuations in D.C. Gas Discharge Plasma

P. Parzen and L. Goldstein

Phys. Rev. 79, 190 (1950) - Published 1 July, 1950

Nuclear Magnetic Resonance of ${Sb}^{121}$ and ${Sb}^{123}$

V. W. Cohen, W. D. Knight, T. Wentink, Jr., and W. S. Koski

Phys. Rev. 79, 191 (1950) - Published 1 July, 1950

Effect of Magnetic Fields on Conduction—"Tube Integrals"

W. Shockley

Phys. Rev. 79, 191 (1950) - Published 1 July, 1950

The Question of Isomerism in ${Ca}^{49}$

E. der Mateosian and M. Goldhaber

Phys. Rev. 79, 192 (1950) - Published 1 July, 1950

The Question of Isomerism in ${Ti}^{51}$

J. A. Miskel, E. der Mateosian, and M. Goldhaber

Phys. Rev. 79, 193 (1950) - Published 1 July, 1950

Neutron-Induced Radioactivity in Palladium

A. Storruste

Phys. Rev. 79, 193 (1950) - Published 1 July, 1950

The Bohr Formula for the Rydberg Constant

Raymond T. Birge

Phys. Rev. 79, 193 (1950) - Published 1 July, 1950

ERRATA

Erratum: Measurement of a 1.6× $10^{- 9}$ Second Half-Life in ${Yb}^{170}$

R. E. Bell and R. L. Graham

Phys. Rev. 79, 194 (1950) - Published 1 July, 1950

Proceedings of the American Physical Society

Minutes of the Meeting at Washington, April 27-29, 1950

Phys. Rev. 79, 195 (1950) - Published 1 July, 1950