New Research In

Table of Contents

July 01, 1928; vol. 14 no. 7

Anthropology

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A Stratification of Remains at an Early Maya Site
O. G. Ricketson Jr.

PNAS July 1, 1928 14 (7) 505-508; https://doi.org/10.1073/pnas.14.7.505

Chemistry

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The Degree of Association of Sodium Vapor
Donald Statler Villars

PNAS July 1, 1928 14 (7) 508-511; https://doi.org/10.1073/pnas.14.7.508

Biochemistry

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The Interrelation between Diatoms, Their Chemical Environment, and Upwelling Water in the Sea, Off the Coast of Southern California
Erik G. Moberg

PNAS July 1, 1928 14 (7) 511-518; https://doi.org/10.1073/pnas.14.7.511

Mathematics

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Transformation of Conjugate Elements or of Conjugate Subgroups
G. A. Miller

PNAS July 1, 1928 14 (7) 518-520; https://doi.org/10.1073/pnas.14.7.518

Pathology

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Observations upon Complement Fixation in Infections with Endamoeba Histolytica
Charles F. Craig

PNAS July 1, 1928 14 (7) 520-526; https://doi.org/10.1073/pnas.14.7.520

Physiology

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Reversible Crystallization in Tendons and Its Functional Significance
Janet H. Clark

PNAS July 1, 1928 14 (7) 526-532; https://doi.org/10.1073/pnas.14.7.526
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An Interpretation of Excitation, Exhaustion and Death in Terms of Physical Constants
G. W. Crile, Amy F. Rowland, and Maria Telkes

PNAS July 1, 1928 14 (7) 532-538; https://doi.org/10.1073/pnas.14.7.532

Physics

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The Polarization of Characteristic Radiation
J. A. Bearden

PNAS July 1, 1928 14 (7) 539-542; https://doi.org/10.1073/pnas.14.7.539
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The Repulsion between Electric Currents and Their Induced Eddy Currents in Parallel
Carl Barus

PNAS July 1, 1928 14 (7) 542-544; https://doi.org/10.1073/pnas.14.7.542
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Apparent Evidence of Polarization in a Beam of β-Rays
R. T. Cox, C. G. McIlwraith, and B. Kurrelmeyer

PNAS July 1, 1928 14 (7) 544-549; https://doi.org/10.1073/pnas.14.7.544
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The Spectrum and State of Polarization of Fluorescent X-Rays
A. H. Compton

PNAS July 1, 1928 14 (7) 549-553; https://doi.org/10.1073/pnas.14.7.549
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An Interpretation of Dirac's Theory of the Electron
G. Breit

PNAS July 1, 1928 14 (7) 553-559; https://doi.org/10.1073/pnas.14.7.553
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Regularities Exhibited between Certain Multiplets for Elements in the Second Long Period
R. C. Gibbs and H. E. White

PNAS July 1, 1928 14 (7) 559-564; https://doi.org/10.1073/pnas.14.7.559
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Angular Scattering of Electrons in Hydrogen and Helium
Gaylord P. Harnwell

PNAS July 1, 1928 14 (7) 564-569; https://doi.org/10.1073/pnas.14.7.564
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Thermodynamics Based on Statistics
Gilbert N. Lewis and Joseph E. Mayer

PNAS July 1, 1928 14 (7) 569-575; https://doi.org/10.1073/pnas.14.7.569
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Thermodynamics Based on Statistics
Gilbert N. Lewis and Joseph E. Mayer

PNAS July 1, 1928 14 (7) 575-580; https://doi.org/10.1073/pnas.14.7.575
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A Proposed Experiment on the Nature of Light
David M. Dennison

PNAS July 1, 1928 14 (7) 580-581; https://doi.org/10.1073/pnas.14.7.580
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The Spectrum of X-Rays from the Back of a Tungsten Target
Egon Lorenz

PNAS July 1, 1928 14 (7) 582-588; https://doi.org/10.1073/pnas.14.7.582
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Absolute X-Ray Wave-Length Measurements
A. P. R. Wadlund

PNAS July 1, 1928 14 (7) 588-591; https://doi.org/10.1073/pnas.14.7.588
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On the Thermodynamic Equilibrium in the Universe
F. Zwicky

PNAS July 1, 1928 14 (7) 592-597; https://doi.org/10.1073/pnas.14.7.592

Paleontology

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Algal Deposits of Unkar Proterozoic Age in the Grand Canyon, Arizona
David White

PNAS July 1, 1928 14 (7) 597-600; https://doi.org/10.1073/pnas.14.7.597

Correction

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On Some Properties of One-Valued Transformations of Manifolds
PNAS July 1, 1928 14 (7) 600; https://doi.org/10.1073/pnas.14.7.600