Volume 53, Issue 7

April 1938

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ARTICLES

The Intensity of the Primary Cosmic Radiation and Its Energy Distribution

Thomas H. Johnson

Phys. Rev. 53, 499 (1938) - Published 1 April, 1938

The Radioactivity of Potassium

Arthur Bramley and A. Keith Brewer

Phys. Rev. 53, 502 (1938) - Published 1 April, 1938

The Nuclear Isomers of ${In}^{116}$

Allan C. G. Mitchell and Lawrence M. Langer

Phys. Rev. 53, 505 (1938) - Published 1 April, 1938

A Critical Analysis of the Classical Experiments on the Relativistic Variation of Electron Mass

C. T. Zahn and A. H. Spees

Phys. Rev. 53, 511 (1938) - Published 1 April, 1938

A New Mass Spectrometer with Improved Focusing Properties

Walker Bleakney and John A. Hipple, Jr.

Phys. Rev. 53, 521 (1938) - Published 1 April, 1938

The Dissociation of Ethane by Electron Impact

John A. Hipple, Jr.

Phys. Rev. 53, 530 (1938) - Published 1 April, 1938

X-Ray and Optical Properties of Barium-Copper-Stearate Films

Clifford Holley

Phys. Rev. 53, 534 (1938) - Published 1 April, 1938

Focusing of an X-Ray Beam by a Rocksalt Crystal

R. M. Bozorth and F. E. Haworth

Phys. Rev. 53, 538 (1938) - Published 1 April, 1938

Emission of Radiation in the Positive Column of a Mercury Arc

Bentley T. Barnes and Elliot Q. Adams

Phys. Rev. 53, 545 (1938) - Published 1 April, 1938

The Mechanism of the Positive Column in Mercury Vapor at Intermediate Pressures

Elliot Q. Adams and Bentley T. Barnes

Phys. Rev. 53, 556 (1938) - Published 1 April, 1938

The Signs of the Nuclear Magnetic Moments of ${Li}^{6}$ and $K^{41}$

John E. Gorham

Phys. Rev. 53, 563 (1938) - Published 1 April, 1938

Term Values in Carbon

C. W. Ufford

Phys. Rev. 53, 568 (1938) - Published 1 April, 1938

Photoelectric and Thermionic Investigations of Thoriated Tungsten Surfaces

Allen King

Phys. Rev. 53, 570 (1938) - Published 1 April, 1938

The Force on the Cathode of a Copper Arc

Randal M. Robertson

Phys. Rev. 53, 578 (1938) - Published 1 April, 1938

Internal Friction in Solids IV. Relation Between Cold Work and Internal Friction

Clarence Zener

Phys. Rev. 53, 582 (1938) - Published 1 April, 1938

The Effect of Hydrostatic Pressure on the Susceptibility of Rochelle Salt

Dennison Bancroft

Phys. Rev. 53, 587 (1938) - Published 1 April, 1938

On Eddington's Treatment of Dirac's Equation

Boris Podolsky

Phys. Rev. 53, 591 (1938) - Published 1 April, 1938

Nuclear Energy Sources and Stellar Evolution

G. Gamow

Phys. Rev. 53, 595 (1938) - Published 1 April, 1938

Letters to the Editor

An Improvement in Geiger-Müller Tube Design

J. L. Lawson and A. W. Tyler

Phys. Rev. 53, 605 (1938) - Published 1 April, 1938

Electron Capture and Internal Conversion in Gallium 67

Luis W. Alvarez

Phys. Rev. 53, 606 (1938) - Published 1 April, 1938

Suggestion Regarding the Nature of the Heavy Electron

Ira M. Freeman

Phys. Rev. 53, 606 (1938) - Published 1 April, 1938

On the Latitude Effect of the Soft Component of Cosmic Rays

Bernhard Gross

Phys. Rev. 53, 607 (1938) - Published 1 April, 1938

The Rate of Selective Thermonuclear Reactions

G. Gamow and E. Teller

Phys. Rev. 53, 608 (1938) - Published 1 April, 1938

Multiple States in the High Pressure Discharge

C. G. Suits

Phys. Rev. 53, 609 (1938) - Published 1 April, 1938

Concentration of Radiohalides, and Failure to Observe Gamma-Rays from $I^{128}$

Arthur Roberts and John W. Irvine, Jr.

Phys. Rev. 53, 609 (1938) - Published 1 April, 1938

Gamma-Radiation from $N^{13}$

J. Reginald Richardson

Phys. Rev. 53, 610 (1938) - Published 1 April, 1938

Change and Exchange of Rest Mass of Elementary Particles During Collisions

F. Zwicky

Phys. Rev. 53, 611 (1938) - Published 1 April, 1938

Isomers of Radioindium

M. L. Pool