New Research In

Table of Contents

June 01, 1939; vol. 25 no. 6

Chemistry

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The Constitution of Secretin
Carl Niemann

PNAS June 1, 1939 25 (6) 267-269; https://doi.org/10.1073/pnas.25.6.267

Geology and Paleontology

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Eocene Amynodonts from Southern California
Chester Stock

PNAS June 1, 1939 25 (6) 270-275; https://doi.org/10.1073/pnas.25.6.270

Physiology and Biochemistry

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The Active Uptake of Ions into Cells and Organisms
August Krogh

PNAS June 1, 1939 25 (6) 275-277; https://doi.org/10.1073/pnas.25.6.275

Genetics

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Mammary Tumor Development in Mice Ovariectomized at Birth
George Woolley, Elizabeth Fekete, and C. C. Little

PNAS June 1, 1939 25 (6) 277-279; https://doi.org/10.1073/pnas.25.6.277
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Observations on the Mechanism of Induced Chromosome Rearrangements in Sciara
C. W. Metz and R. D. Boche

PNAS June 1, 1939 25 (6) 280-284; https://doi.org/10.1073/pnas.25.6.280

ZoÃ–logy and Anatomy

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Evidence for the Existence of an Electro-Dynamic Field in Living Organisms
H. S. Burr and F. S. C. Northrop

PNAS June 1, 1939 25 (6) 284-288; https://doi.org/10.1073/pnas.25.6.284

Mathematics

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Class Field Theory of Solvable Algebraic Number Fields
D. M. Dribin

PNAS June 1, 1939 25 (6) 289-290; https://doi.org/10.1073/pnas.25.6.289
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On the Representation of Groups of Finite Order
Richard Brauer

PNAS June 1, 1939 25 (6) 290-295; https://doi.org/10.1073/pnas.25.6.290
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Ordered Sets, Complexes and the Problem of Compactification
J. W. Alexander

PNAS June 1, 1939 25 (6) 296-298; https://doi.org/10.1073/pnas.25.6.296