Volume 75, Issue 3

February 1949

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ARTICLES

Experiments on $N - P$ Scattering with 90- and 40-Mev Neutrons

J. Hadley, E. Kelly, C. Leith, E. Segrè, C. Wiegand, and H. York

Phys. Rev. 75, 351 (1949) - Published 1 February, 1949

Stars in Photographic Emulsions Initiated by Deuterons. Part I. Experimental

Eugene Gardner and Vincent Peterson

Phys. Rev. 75, 364 (1949) - Published 1 February, 1949

Stars in Photographic Emulsions Initiated by Deuterons. Part II. Theoretical

W. Horning and L. Baumhoff

Phys. Rev. 75, 370 (1949) - Published 1 February, 1949

Stars in Photographic Emulsions Initiated by Alpha-Particles

Eugene Gardner

Phys. Rev. 75, 379 (1949) - Published 1 February, 1949

Positive Mesons Produced by the 184-Inch Berkeley Cyclotron

John Burfening, Eugene Gardner, and C. M. G. Lattes

Phys. Rev. 75, 382 (1949) - Published 1 February, 1949

On the Self-Energy of a Bound Electron

Norman M. Kroll and Willis E. Lamb, Jr.

Phys. Rev. 75, 388 (1949) - Published 1 February, 1949

Study of Phase Transitions by Means of Nuclear Magnetic Resonance Phenomena

Nelson L. Alpert

Phys. Rev. 75, 398 (1949) - Published 1 February, 1949

High Frequency Gas Discharge Breakdown in Helium

A. D. MacDonald and Sanborn C. Brown

Phys. Rev. 75, 411 (1949) - Published 1 February, 1949

On the Scattering of Protons in Hydrogen

C. L. Critchfield and D. C. Dodder

Phys. Rev. 75, 419 (1949) - Published 1 February, 1949

An Investigation of Bremsstrahlung by Means of the Nuclear Isomerism of Indium

Walter C. Miller and Bernard Waldman

Phys. Rev. 75, 425 (1949) - Published 1 February, 1949

88-Mev Gamma-Ray Cross Sections

James L. Lawson

Phys. Rev. 75, 433 (1949) - Published 1 February, 1949

The Angular and Lateral Spread of Cosmic-Ray Showers

Jane Roberg and L. W. Nordheim

Phys. Rev. 75, 444 (1949) - Published 1 February, 1949

The Application of a Magnetic Lens Spectrometer to the Measurement of Gamma-Radiation from ${Zn}^{65}$ and ${Co}^{60}$

Erling N. Jensen, L. Jackson Laslett, and William W. Pratt

Phys. Rev. 75, 458 (1949) - Published 1 February, 1949

The Magnetic Susceptibility of BeO

Clyde A. Hutchison, Jr.

Phys. Rev. 75, 465 (1949) - Published 1 February, 1949

Multiple Compton Scattering

W. R. Faust and M. H. Johnson

Phys. Rev. 75, 467 (1949) - Published 1 February, 1949

Conductivity Induced by Electron Bombardment in Thin Insulating Films

L. Pensak

Phys. Rev. 75, 472 (1949) - Published 1 February, 1949

The Recording of Electron Tracks in Photographic Emulsions

R. H. Herz

Phys. Rev. 75, 478 (1949) - Published 1 February, 1949

The Radiation Theories of Tomonaga, Schwinger, and Feynman

F. J. Dyson

Phys. Rev. 75, 486 (1949) - Published 1 February, 1949

Note on a Theorem of Bloch Concerning Possible Causes of Superconductivity

D. Bohm

Phys. Rev. 75, 502 (1949) - Published 1 February, 1949

A Precision Study of the Tungsten $K$ Spectrum Using the 2-Meter Focusing Curved Crystal Spectrometer

Bernard B. Watson, William J. West, David A. Lind, and Jesse W. M. DuMond

Phys. Rev. 75, 505 (1949) - Published 1 February, 1949

Beta-Decay of ${Be}^{10}$ and Theory of Beta-Decay

R. E. Marshak

Phys. Rev. 75, 513 (1949) - Published 1 February, 1949

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

D. J. Hughes, C. Eggler, and C. M. Huddleston

Phys. Rev. 75, 515 (1949) - Published 1 February, 1949

Letters to the Editor

Absorption of Penetrating Shower Primaries

John Tinlot and B. Gregory

Phys. Rev. 75, 519 (1949) - Published 1 February, 1949

Correlation of Penetrating Showers with Air Showers

John Tinlot and B. Gregory

Phys. Rev. 75, 520 (1949) - Published 1 February, 1949

Excited-State Bands of Atmospheric C $O_{2}$

Orren C. Mohler, Robert R. McMath, and Leo Goldberg

Phys. Rev. 75, 520 (1949) - Published 1 February, 1949

Passage of Finite Amplitude Pressure Waves through Temperature Discontinuities

Bruno W. Augenstein

Phys. Rev. 75, 521 (1949) - Published 1 February, 1949

The Magnetic Moment of ${Tl}^{203}$

W. G. Proctor

Phys. Rev. 75, 522 (1949) - Published 1 February, 1949

$H^{3}$ and the Mass of the Neutrino

W. A. Bowers and Nathan Rosen

Phys. Rev. 75, 523 (1949) - Published 1 February, 1949

$γ$ -Radiation from ${Au}^{198}$

Kai Siegbahn and Arne Hedgran

Phys. Rev. 75, 523 (1949) - Published 1 February, 1949

V-2 Cloud-Chamber Observation of a Multiply Charged Primary Cosmic Ray

S. E. Golian, C. Y. Johnson, E. H. Krause, M. L. Kuder, G. J. Perlow, and C. A. Schroeder

Phys. Rev. 75, 524 (1949) - Published 1 February, 1949

Ferromagnetic Resonance in Iron Oxides

G. E. Crouch, Jr.

Phys. Rev. 75, 525 (1949) - Published 1 February, 1949

Cadmium Sulfide as a Crystal Counter

G. J. Goldsmith and K. Lark-Horovitz

Phys. Rev. 75, 526 (1949) - Published 1 February, 1949

Yields of the Platinum Group Radio-Isotopes in the High Energy Helium-Ion Bombardment of Uranium

R. D. Wolfe and N. E. Ballou

Phys. Rev. 75, 527 (1949) - Published 1 February, 1949

Maximum Positron to Negatron Ratio in the Decay of ${Cl}^{36}$

Francis Johnston and John E. Willard

Phys. Rev. 75, 528 (1949) - Published 1 February, 1949

Magnetic Multipole Internal Conversion

I. S. Lowen and N. Tralli

Phys. Rev. 75, 529 (1949) - Published 1 February, 1949

$O^{17}$ and $S^{36}$ in the Rotational Spectrum of OCS

W. Low and C. H. Townes

Phys. Rev. 75, 529 (1949) - Published 1 February, 1949

On the Geiger-Nuttall Relationship

Sukumar Biswas

Phys. Rev. 75, 530 (1949) - Published 1 February, 1949

A Model for Nuclear Capture of $μ$ -Mesons

Marshall N. Rosenbluth

Phys. Rev. 75, 532 (1949) - Published 1 February, 1949

Mass Spectrometer Determination of the Half-Life of ${Xe}^{133}$

J. Macnamara, C. B. Collins, and H. G. Thode

Phys. Rev. 75, 532 (1949) - Published 1 February, 1949

Natural Abundance Measurements on Germanium

R. F. Hibbs, J. W. Redmond, H. R. Gwinn, and W. D. Harman

Phys. Rev. 75, 533 (1949) - Published 1 February, 1949

ERRATA

Erratum: Significance of the Radioactivity of Potassium in Geophysics. II

T. Gráf

Phys. Rev. 75, 534 (1949) - Published 1 February, 1949

Erratum: Line Shapes in Nuclear Paramagnetism

G. E. Pake and E. M. Purcell

Phys. Rev. 75, 534 (1949) - Published 1 February, 1949

Letters to the Editor

On the Numerical Calculation of the Internal Conversion in the $K$ -Shell; the Electric Dipole Case

B. A. Griffith and J. P. Stanley

Phys. Rev. 75, 534 (1949) - Published 1 February, 1949

Relativistic Formulation of the Quantum Theory of Radiation

S. T. Ma

Phys. Rev. 75, 535 (1949) - Published 1 February, 1949