Volume 15, Issue 4

April 1920

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ARTICLES

Neutral Magnetization in Iron

Arthur W. Smith and Harry E. Hammond.

Phys. Rev. 15, 249 (1920) - Published 1 April, 1920

Calculation of the Constants of the Three-Electrode Thermionic Vacuum Tube

Robert W. King.

Phys. Rev. 15, 256 (1920) - Published 1 April, 1920

A Principle of Duality in Thermodynamics

Arthur C. Lunn.

Phys. Rev. 15, 269 (1920) - Published 1 April, 1920

On Some Applications of Hertz's Theory of Impact

C. V. Raman.

Phys. Rev. 15, 277 (1920) - Published 1 April, 1920

Wave-Length Measurements in the $M$ Series of Some High-Frequency Spectra

J. C. Karcher.

Phys. Rev. 15, 285 (1920) - Published 1 April, 1920

"Thalofide Cell"—a New Photo-Electric Substance

T. W. Case

Phys. Rev. 15, 289 (1920) - Published 1 April, 1920

Note on Article By H. M. Dadourian on "Soft X-Rays."

Elizabeth R. Laird

Phys. Rev. 15, 293 (1920) - Published 1 April, 1920

Soft X-Rays Produced by Cathode Rays of from 200 to 600 volts Velocities

Elizabeth R. Laird and Vola P. Barton

Phys. Rev. 15, 297 (1920) - Published 1 April, 1920

Symmetrical Subdivision of Anode Glow in Helium Discharge Tubes

G. M. J. Mackay

Phys. Rev. 15, 309 (1920) - Published 1 April, 1920

Note on the Retarded Potentials

Max Mason

Phys. Rev. 15, 312 (1920) - Published 1 April, 1920

Note on paper by C. V. Kent on the Optical Constants of Liquid Alloys

H. A. Wilson

Phys. Rev. 15, 317 (1920) - Published 1 April, 1920

Minutes of the New York Meeting, February 28, 1920

Phys. Rev. 15, 318 (1920) - Published 1 April, 1920

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