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Table of Contents

May 01, 1926; vol. 12 no. 5

Geology

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The Compressibilities of Dunite and of Basalt Glass and Their Bearing on the Composition of the Earth
L. H. Adams and R. E. Gibson

PNAS May 1, 1926 12 (5) 275-283; https://doi.org/10.1073/pnas.12.5.275

Astronomy

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Radial Velocities of 368 Helium Stars
Edwin B. Frost, Storrs B. Barrett, and Otto Struve

PNAS May 1, 1926 12 (5) 283-285; https://doi.org/10.1073/pnas.12.5.283
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Visual Observations of the Solar Atmosphere
George E. Hale

PNAS May 1, 1926 12 (5) 286-295; https://doi.org/10.1073/pnas.12.5.286

Chemistry

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Capillary Condensation and Adsorption
William C. Bray and Hal D. Draper

PNAS May 1, 1926 12 (5) 295-299; https://doi.org/10.1073/pnas.12.5.295

Physiology

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The Physiological Principle of Minimum Work
Cecil D. Murray

PNAS May 1, 1926 12 (5) 299-304; https://doi.org/10.1073/pnas.12.5.299

ZoÃ¶logy

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Nuclear Division in the Trophozoites of Endamoeba Histolytica
Cesar Uribe

PNAS May 1, 1926 12 (5) 305-311; https://doi.org/10.1073/pnas.12.5.305
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The Effect of Hydrogen-Ion Concentration on Locomotion and Other Life-Processes in Amoeba Proteus
D. L. Hopkins

PNAS May 1, 1926 12 (5) 311-315; https://doi.org/10.1073/pnas.12.5.311

Genetics

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Pollen Abortion in Chromosomal Types of Datura
A. F. Blakeslee and J. L. Cartledge

PNAS May 1, 1926 12 (5) 315-323; https://doi.org/10.1073/pnas.12.5.315

Physics

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Remarks on Penetrating Radiation
Edward Condon

PNAS May 1, 1926 12 (5) 323-326; https://doi.org/10.1073/pnas.12.5.323
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New Evidence in Favor of a Dual Theory of Metallic Conduction
Edwin H. Hall

PNAS May 1, 1926 12 (5) 326-328; https://doi.org/10.1073/pnas.12.5.326
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The Magnetic Moment of the Electron
R. de L. Kronig

PNAS May 1, 1926 12 (5) 328-330; https://doi.org/10.1073/pnas.12.5.328
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A Theorem on Space Quantization
R. de L. Kronig

PNAS May 1, 1926 12 (5) 330-334; https://doi.org/10.1073/pnas.12.5.330
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On the Heat Capacity of Non-Polar Solid Compounds
E. O. Salant

PNAS May 1, 1926 12 (5) 334-337; https://doi.org/10.1073/pnas.12.5.334
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Systematic Relations between Electronic Structure and Band-Spectrum Structure in Diatomic Molecules
Robert S. Mulliken

PNAS May 1, 1926 12 (5) 338-343; https://doi.org/10.1073/pnas.12.5.338
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On the Nature of Light
Richard C. Tolman and Sinclair Smith

PNAS May 1, 1926 12 (5) 343-347; https://doi.org/10.1073/pnas.12.5.343

Mathematics

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On Laguerre's Series
Einar Hille

PNAS May 1, 1926 12 (5) 348-352; https://doi.org/10.1073/pnas.12.5.348
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On Conformal Geometry
Tracy Yerkes Thomas

PNAS May 1, 1926 12 (5) 352-359; https://doi.org/10.1073/pnas.12.5.352
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Concerning Indecomposable Continua and Continua Which Contain No Subsets That Separate the Plane
R. L. Moore

PNAS May 1, 1926 12 (5) 359-363; https://doi.org/10.1073/pnas.12.5.359

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