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Table of Contents

March 01, 1928; vol. 14 no. 3

Mathematics

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On the Separation of Points of a Continuous Curve by Arcs and Simple Closed Curves
W. L. Ayres

PNAS March 1, 1928 14 (3) 201-206; https://doi.org/10.1073/pnas.14.3.201
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On Some Properties of One-Valued Transformations of Manifolds
H. Hopf

PNAS March 1, 1928 14 (3) 206-214; https://doi.org/10.1073/pnas.14.3.206
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Harmony as a Principle of Mathematical Development
G. A. Miller

PNAS March 1, 1928 14 (3) 214-217; https://doi.org/10.1073/pnas.14.3.214
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Note on the Behavior of Certain Power Series on the Circle of Convergence with Application to a Problem of Carleman
Einar Hille

PNAS March 1, 1928 14 (3) 217-220; https://doi.org/10.1073/pnas.14.3.217

Biology

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Intra-Seasonal Cycles of Growth
H. S. Reed

PNAS March 1, 1928 14 (3) 221-229; https://doi.org/10.1073/pnas.14.3.221
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Studies on the Biochemical Differences between Sexes in Mucors
Sophia Satina and A. F. Blakeslee

PNAS March 1, 1928 14 (3) 229-235; https://doi.org/10.1073/pnas.14.3.229

Botany

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Induced Immunity in Plants
Dontcho Kostoff

PNAS March 1, 1928 14 (3) 236-237; https://doi.org/10.1073/pnas.14.3.236

Physiology

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On the Binocular Fusion of Colors and Its Relation to Theories of Color Vision
Selig Hecht

PNAS March 1, 1928 14 (3) 237-241; https://doi.org/10.1073/pnas.14.3.237

Astronomy

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On the Motion of the Magellanic Clouds
Willem J. Luyten

PNAS March 1, 1928 14 (3) 241-245; https://doi.org/10.1073/pnas.14.3.241

ZoÃ¶logy

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Artificial Production of Janus Embryos of Chaetopterus
Albert Titlebaum

PNAS March 1, 1928 14 (3) 245-247; https://doi.org/10.1073/pnas.14.3.245

Physics

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Anode and Cathode Sparks Differentiated by the Mucronate Electrode
Carl Barus

PNAS March 1, 1928 14 (3) 248-251; https://doi.org/10.1073/pnas.14.3.248
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A Spectroscopic Criterion for the Benzenoid Structure in Some Types of Triphenylmethane Derivatives
R. C. Gibbs and C. V. Shapiro

PNAS March 1, 1928 14 (3) 251-253; https://doi.org/10.1073/pnas.14.3.251
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The Dispersion by Hydrogen-Like Atoms in Undulatory Mechanics
Boris Podolsky

PNAS March 1, 1928 14 (3) 253-258; https://doi.org/10.1073/pnas.14.3.253
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The Production of Active Nitrogen
Joseph Kaplan

PNAS March 1, 1928 14 (3) 258-260; https://doi.org/10.1073/pnas.14.3.258
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On the Quantum Theory of the Ramsauer Effect
J. R. Oppenheimer

PNAS March 1, 1928 14 (3) 261-262; https://doi.org/10.1073/pnas.14.3.261
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The Fifth Dimension in Relativistic Quantum Theory
Norbert Wiener and D. J. Struik

PNAS March 1, 1928 14 (3) 262-268; https://doi.org/10.1073/pnas.14.3.262
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On the Extension of Thermodynamics to General Relativity
Richard C. Tolman

PNAS March 1, 1928 14 (3) 268-272; https://doi.org/10.1073/pnas.14.3.268
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On the Variation of the Electromotive Force in a Photoactive Cell, Containing a Fluorescent Electrolyte, with the Intensity of Illumination
William Rule

PNAS March 1, 1928 14 (3) 272-278; https://doi.org/10.1073/pnas.14.3.272
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A Note on Corona at High Humidity
A. W. Simon

PNAS March 1, 1928 14 (3) 279-280; https://doi.org/10.1073/pnas.14.3.279
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The Spark Spectrum of Neon
H. N. Russell, K. T. Compton, and J. C. Boyce

PNAS March 1, 1928 14 (3) 280-283; https://doi.org/10.1073/pnas.14.3.280

Statistics

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On Hierarchical Correlation Systems
Edwin B. Wilson

PNAS March 1, 1928 14 (3) 283-291; https://doi.org/10.1073/pnas.14.3.283

Correction

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Application of the Law of Similitude to Hydraulic Laboratory Research
PNAS March 1, 1928 14 (3) 292;

Correction

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On the Classical Dirichlet Problem for General Domains
PNAS March 1, 1928 14 (3) 292;

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