Volume 76, Issue 8

October 1949

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ARTICLES

A Preliminary Directional Study of Cosmic Rays at High Altitude. I. Apparatus and Procedure

W. G. Stroud, J. Schenck, and J. R. Winckler

Phys. Rev. 76, 1005 (1949) - Published 15 October, 1949

A Preliminary Directional Study of Cosmic Rays at High Altitude. II. Experimental Results and Interpretation

J. R. Winckler, W. G. Stroud, and T. J. B. Shanley

Phys. Rev. 76, 1012 (1949) - Published 15 October, 1949

The Lateral Structure of Cosmic-Ray Air Showers

G. Cocconi, V. Cocconi Tongiorgi, and K. Greisen

Phys. Rev. 76, 1020 (1949) - Published 15 October, 1949

A Cloud-Chamber Study of Extensive Air Showers at 3260 Meters Elevation

W. W. Brown and A. S. Mckay

Phys. Rev. 76, 1034 (1949) - Published 15 October, 1949

Cosmic-Ray Mesons near Sea Level

William L. Kraushaar

Phys. Rev. 76, 1045 (1949) - Published 15 October, 1949

Transient Nutations in Nuclear Magnetic Resonance

H. C. Torrey

Phys. Rev. 76, 1059 (1949) - Published 15 October, 1949

Atomic Beam Magnetic Resonance Experiments with Radioactive Elements ${Na}^{22}$ , $K^{40}$ , ${Cs}^{135}$ , and ${Cs}^{137}$

Luther Davis, Jr., Darragh E. Nagle, and Jerrold R. Zacharias

Phys. Rev. 76, 1068 (1949) - Published 15 October, 1949

The Hyperfine Structure and Nuclear Moments of the Stable Chlorine Isotopes

Luther Davis, JR., Bernard T. Feld, Carrol W. Zabel, and Jerrold R. Zacharias

Phys. Rev. 76, 1076 (1949) - Published 15 October, 1949

The Hyperfine Structure of the ${}^{2}P_{\frac{3}{2}}$ State of ${Al}^{27}$ . The Nuclear Electric Quadrupole Moment

Hin Lew

Phys. Rev. 76, 1086 (1949) - Published 15 October, 1949

Extensive Air Showers at High Altitudes

Henry L. Kraybill

Phys. Rev. 76, 1092 (1949) - Published 15 October, 1949

Star Production by Negative $μ$ -Mesons in a Silver Chloride Crystal

H. G. Voorhies and J. C. Street

Phys. Rev. 76, 1100 (1949) - Published 15 October, 1949

High Frequency Surface Resistivity of Tin in the Normal and Superconducting States

William M. Fairbank

Phys. Rev. 76, 1106 (1949) - Published 15 October, 1949

Kinetic Energy Release in Fission of $U^{238}$ , $U^{235}$ , ${Th}^{232}$ , and ${Bi}^{209}$ by High Energy Neutrons

J. Jungerman and S. C. Wright

Phys. Rev. 76, 1112 (1949) - Published 15 October, 1949

Small Angle Diffraction of Neutrons and Similar Wave Phenomena

Otto Halpern and Edward Gerjuoy

Phys. Rev. 76, 1117 (1949) - Published 15 October, 1949

On Magneto Optics of Neutrons and Some Related Phenomena

Otto Halpern

Phys. Rev. 76, 1130 (1949) - Published 15 October, 1949

Further Results on Neutron Production by Cosmic-Ray Particles at Sea Level

R. D. Sard, A. M. Conforto, and M. F. Crouch

Phys. Rev. 76, 1134 (1949) - Published 15 October, 1949

Scattering of Protons by Tritons

A. Hemmendinger, G. A. Jarvis, and R. F. Taschek

Phys. Rev. 76, 1137 (1949) - Published 15 October, 1949

Cross Section as a Function of Angle for the $D (d, n) {He}^{3}$ Reaction for 10-Mev Bombarding Deuterons

K. W. Erickson, J. L. Fowler, and E. J. Stovall, Jr.

Phys. Rev. 76, 1141 (1949) - Published 15 October, 1949

Investigation of Nuclear Energy Levels in Lead

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

Phys. Rev. 76, 1146 (1949) - Published 15 October, 1949

Deuteron Bombardment of Boron Isotopes

Emmett L. Hudspeth and Charles P. Swann

Phys. Rev. 76, 1150 (1949) - Published 15 October, 1949

Radiative Corrections to Nuclear Forces in the Pseudoscalar Meson Theory

K. M. Watson and J. V. Lepore

Phys. Rev. 76, 1157 (1949) - Published 15 October, 1949

The Photo-Disintegration of the Deuteron

Ingvar F. E. Hansson and Lamek Hulthén

Phys. Rev. 76, 1163 (1949) - Published 15 October, 1949

Effects of Scattering and Absorption of Mesons on Coincidence-Anticoincidence Measurements

Rogers D. Rusk and Alma Rosenbaum

Phys. Rev. 76, 1166 (1949) - Published 15 October, 1949

Interstitial Atomic Diffusion Coefficients

C. Wert and C. Zener

Phys. Rev. 76, 1169 (1949) - Published 15 October, 1949

Interaction between Elementary Particles. Part I

Alfred LandÉ

Phys. Rev. 76, 1176 (1949) - Published 15 October, 1949

On the Use of Subtraction Fields and the Lifetimes of Some Types of Meson Decay

J. Steinberger

Phys. Rev. 76, 1180 (1949) - Published 15 October, 1949

Domain Structures and Phase Transitions in Barium Titanate

P. W. Forsbergh, Jr.

Phys. Rev. 76, 1187 (1949) - Published 15 October, 1949

The Dielectric Properties of Barium Titanate at Low Temperatures

R. F. Blunt and W. F. Love

Phys. Rev. 76, 1202 (1949) - Published 15 October, 1949

New Methods of Determining the Absolute Intensity of Cosmic Rays in the Atmosphere and the Residual Ionization in Ionization Chambers

Victor F. Hess and Roger P. Vancour

Phys. Rev. 76, 1205 (1949) - Published 15 October, 1949

Rollin Film Rates in Liquid Helium

Henry A. Fairbank and C. T. Lane

Phys. Rev. 76, 1209 (1949) - Published 15 October, 1949

Collision Theories of Pressure Broadening of Spectral Lines

J. H. Van Vleck and Henry Margenau

Phys. Rev. 76, 1211 (1949) - Published 15 October, 1949

Dielectric Constants and Polarizabilities of Ions in Simple Crystals and Barium Titanate

Shepard Roberts

Phys. Rev. 76, 1215 (1949) - Published 15 October, 1949

The Electric and Optical Behavior of BaTi $O_{3}$ Single-Domain Crystals

Walter J. Merz

Phys. Rev. 76, 1221 (1949) - Published 15 October, 1949

On the Origin of Elements

Maria G. Mayer and Edward Teller

Phys. Rev. 76, 1226 (1949) - Published 15 October, 1949

Crystal Statistics. II. Partition Function Evaluated by Spinor Analysis

Bruria Kaufman

Phys. Rev. 76, 1232 (1949) - Published 15 October, 1949

Crystal Statistics. III. Short-Range Order in a Binary Ising Lattice

Bruria Kaufman and Lars Onsager

Phys. Rev. 76, 1244 (1949) - Published 15 October, 1949

Letters to the Editor

The Possible Existence of the $4 n + 1$ Radioactive Series in Chloritized Ytterby Mica

J. H. J. Poole, C. F. G. Delaney, and R. C. Mccormick

Phys. Rev. 76, 1253 (1949) - Published 15 October, 1949

Infra-Red Color Center Bands in the Alkali Halides

E. Burstein and J. J. Oberly

Phys. Rev. 76, 1254 (1949) - Published 15 October, 1949

The $S$ -Matrix for Meson-Nucleon Interactions

P. T. Matthews

Phys. Rev. 76, 1254 (1949) - Published 15 October, 1949

Electric Quadrupole Moments of Nuclei

G. J. Bene, P. M. Denis, and R. C. Extermann

Phys. Rev. 76, 1255 (1949) - Published 15 October, 1949

On the Delayed Neutron Emitter ${}_{7}N^{17}$

R. A. Charpie, Kuan-Han Sun, B. Jennings, and J. F. Nechaj

Phys. Rev. 76, 1255 (1949) - Published 15 October, 1949

New Radioactive Isotopes of Dysprosium

B. H. Ketelle

Phys. Rev. 76, 1256 (1949) - Published 15 October, 1949

Detection of Antiferromagnetism by Neutron Diffraction

C. G. Shull and J. Samuel Smart

Phys. Rev. 76, 1256 (1949) - Published 15 October, 1949

Imprisonment of Resonance Radiation in Mercury Vapor

D. Alpert, A. O. Mccoubrey, and T. Holstein

Phys. Rev. 76, 1257 (1949) - Published 15 October, 1949

Persistence of Band Fluorescence in Mercury Vapor

T. Holstein, D. Alpert, and A. O. McCoubrey

Phys. Rev. 76, 1259 (1949) - Published 15 October, 1949

Nuclear Magnetic Resonance Shift in Metals

W. D. Knight

Phys. Rev. 76, 1259 (1949) - Published 15 October, 1949

A New Determination of the Relative Abundance of Rhenium in Nature

Harrison Brown and Edward Goldberg

Phys. Rev. 76, 1260 (1949) - Published 15 October, 1949

Cloud-Chamber Study of High Energy Positrons from ${Na}^{22}$

Kennard H. Morganstern and Karl P. W. Wolf

Phys. Rev. 76, 1261 (1949) - Published 15 October, 1949

Positive Particles Associated with Beta-Ray Emitters

K. L. Erdman, G. T. Kokotailo, and D. B. Scott

Phys. Rev. 76, 1262 (1949) - Published 15 October, 1949

A Precise Determination of the Proton Magnetic Moment in Bohr Magnetons

J. H. Gardner and E. M. Purcell

Phys. Rev. 76, 1262 (1949) - Published 15 October, 1949

Gamma-Radiation from ${Br}^{82}$

Kai Siegbahn, Arne Hedgran, and Martin Deutsch

Phys. Rev. 76, 1263 (1949) - Published 15 October, 1949

The Transformation between One- and Three-Dimensional Power Spectra for an Isotropic Scalar Fluctuation Field

Leslie S. G. Kovasznay, Mahinder S. Uberoi, and Stanley Corrsin

Phys. Rev. 76, 1263 (1949) - Published 15 October, 1949

Erratum: Determination of Nuclear Gyromagnetic Ratios I

John R. Zimmerman and Dudley Williams

Phys. Rev. 76, 1264 (1949) - Published 15 October, 1949

A New Gamma-Ray Resonance in the Reaction $C^{12} (p, γ) N^{15}$

D. M. Van Patter

Phys. Rev. 76, 1264 (1949) - Published 15 October, 1949

On the Double Beta-Process

Mark G. Inghram and John H. Reynolds

Phys. Rev. 76, 1265 (1949) - Published 15 October, 1949

On the Negative Proton

Kuan-Han Sun

Phys. Rev. 76, 1266 (1949) - Published 15 October, 1949

ERRATA

Erratum: The Chi-Square Test as a Criterion for Testing Halogen-Filled Geiger Tubes

A. B. Willoughby

Phys. Rev. 76, 1266 (1949) - Published 15 October, 1949

Letters to the Editor

Spontaneous Decay Rate of Heavy Mesons. II

L. I. Schiff and D. L. Weisman

Phys. Rev. 76, 1266 (1949) - Published 15 October, 1949

A Note on the Infra-Red Spectra of the Deutero-Ammonias

John S. Burgess

Phys. Rev. 76, 1267 (1949) - Published 15 October, 1949

On the Latitude Dependence of the Absolute Neutron Intensities in Cosmic Radiation

Luke C. L. Yuan

Phys. Rev. 76, 1267 (1949) - Published 15 October, 1949

On the Measurement of Slow Neutrons in the Cosmic Radiation on a B-29 Plane

Luke C. L. Yuan

Phys. Rev. 76, 1268 (1949) - Published 15 October, 1949

A Theory of Pressure Absorption

Masataka Mizushima

Phys. Rev. 76, 1268 (1949) - Published 15 October, 1949

Experimental Study of the Compton Effect at 1.2 Mev

Robert Hofstadter and John A. Mcintyre

Phys. Rev. 76, 1269 (1949) - Published 15 October, 1949

The Electromagnetic Separation of the Isotopes of Mercury

C. P. Keim

Phys. Rev. 76, 1270 (1949) - Published 15 October, 1949

A Preliminary Note on Nuclear Periodic Scheme in Three Dimensions

S. Podgor

Phys. Rev. 76, 1271 (1949) - Published 15 October, 1949

The Beta-Spectrum of ${Be}^{10}$

H. W. Fulbright and J. C. D. Milton

Phys. Rev. 76, 1271 (1949) - Published 15 October, 1949

The Disintegrations of ${Sn}^{121}$ and ${Sn}^{123}$

R. B. Duffield and L. M. Langer

Phys. Rev. 76, 1272 (1949) - Published 15 October, 1949

The $ν_{3}$ -Fundamental of Nitrous Oxide

K. B. Rhodes and E. E. Bell

Phys. Rev. 76, 1273 (1949) - Published 15 October, 1949

Two Kinds of Very High Energy Cosmic-Ray Stars

L. Leprince-Ringuet, F. Bousser, Hoang-Tchang-Fong, L. Jauneau, and D. Morellet

Phys. Rev. 76, 1273 (1949) - Published 15 October, 1949