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Table of Contents

July 01, 1915; vol. 1 no. 7

Astronomy

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Nova Geminorum No. 2 as a Wolf-Rayet Star
Walter S. Adams and Francis G. Pease

PNAS July 1, 1915 1 (7) 391-394; https://doi.org/10.1073/pnas.1.7.391
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A Singular Dark Marking on the Sky
E. E. Barnard

PNAS July 1, 1915 1 (7) 394-396; https://doi.org/10.1073/pnas.1.7.394
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Radial Velocities Within the Great Nebula of Orion
Edwin B. Frost

PNAS July 1, 1915 1 (7) 416; https://doi.org/10.1073/pnas.1.7.416
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The Radial Velocities of the More Distant Stars
Walter S. Adams

PNAS July 1, 1915 1 (7) 417-420; https://doi.org/10.1073/pnas.1.7.417

Physics

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The Ruling and Performance of a Ten-Inch Diffraction Grating
A. A. Michelson

PNAS July 1, 1915 1 (7) 396-400; https://doi.org/10.1073/pnas.1.7.396
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A Highly Sensitive Electrometer
A. L. Parson

PNAS July 1, 1915 1 (7) 400-401; https://doi.org/10.1073/pnas.1.7.400

Anthropology

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The Distribution and Functions of Tribal Societies Among the Plains Indians
Clark Wissler

PNAS July 1, 1915 1 (7) 401-403; https://doi.org/10.1073/pnas.1.7.401
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An Exhibit in Physical Anthropology
Aleš Hrdlička

PNAS July 1, 1915 1 (7) 407-410; https://doi.org/10.1073/pnas.1.7.407

Chemistry

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The Determination of Surface-Tension
T. W. Richards and L. B. Coombs

PNAS July 1, 1915 1 (7) 404-407; https://doi.org/10.1073/pnas.1.7.404
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The Compressibilities of the Elements and their Relations to Other Properties
T. W. Richards

PNAS July 1, 1915 1 (7) 411-415; https://doi.org/10.1073/pnas.1.7.411

Zoology

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Localization of the Hereditary Material in the Germ Cells
T. H. Morgan

PNAS July 1, 1915 1 (7) 420-429; https://doi.org/10.1073/pnas.1.7.420

Mineralogy

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Researches on the Chemical and Mineralogical Composition of Meteorites
George P. Merrill

PNAS July 1, 1915 1 (7) 429-431; https://doi.org/10.1073/pnas.1.7.429

Mathematics

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On the Representation of Arbitrary Functions by Definite Integrals
Walter B. Ford

PNAS July 1, 1915 1 (7) 431-435; https://doi.org/10.1073/pnas.1.7.431
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Some Theorems Connected with Irrational Numbers
William Duncan MacMillan

PNAS July 1, 1915 1 (7) 437-438; https://doi.org/10.1073/pnas.1.7.437

Physiology

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The Lymphocyte as a Factor in Natural and Induced Resistance to Transplanted Cancer
James B. Murphy and John J. Morton

PNAS July 1, 1915 1 (7) 435-437; https://doi.org/10.1073/pnas.1.7.435

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