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Table of Contents

August 01, 1918; vol. 4 no. 8

Genetics

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Hereditary Tendency to Form Nerve Tumors
C. B. Davenport

PNAS August 1, 1918 4 (8) 213-214; https://doi.org/10.1073/pnas.4.8.213
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The Effect of Inbreeding and Crossbreeding Upon Development
D. F. Jones

PNAS August 1, 1918 4 (8) 246-250; https://doi.org/10.1073/pnas.4.8.246

Mathematics

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Arithmetical Theory of Certain Hurwitzian Continued Fractions
D. N. Lehmer

PNAS August 1, 1918 4 (8) 214-218; https://doi.org/10.1073/pnas.4.8.214
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On Closed Curves Described by a Spherical Pendulum
Arnold Emch

PNAS August 1, 1918 4 (8) 218-221; https://doi.org/10.1073/pnas.4.8.218

Botany

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The Taxonomic Position of the Genus Actinomyces
Charles Drechsler

PNAS August 1, 1918 4 (8) 221-224; https://doi.org/10.1073/pnas.4.8.221
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A Bacteriological Study of the Soil of Loggerhead Key, Tortugas, Florida
C. B. Lipman and D. D. Waynick

PNAS August 1, 1918 4 (8) 232-234; https://doi.org/10.1073/pnas.4.8.232

Astronomy

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Studies of Magnitudes in Star Clusters
Harlow Shapley

PNAS August 1, 1918 4 (8) 224-229; https://doi.org/10.1073/pnas.4.8.224

Geology

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Glacial Depression and Post-Glacial Uplift of Northeastern America
H. L. Fairchild

PNAS August 1, 1918 4 (8) 229-232; https://doi.org/10.1073/pnas.4.8.229

ZoÃ¶logy

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Autonomous Responses of the Labial Palps of Anodonta
P. H. Cobb

PNAS August 1, 1918 4 (8) 234-235; https://doi.org/10.1073/pnas.4.8.234
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The Myodome and Trigemino-Facialis Chamber of Fishes and the Corresponding Cavities in Higher Vertebrates
Edward Phelps Allis Jr.

PNAS August 1, 1918 4 (8) 241-246; https://doi.org/10.1073/pnas.4.8.241

Physics

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The Depth of the Effective Plane in X-Ray Crystal Penetration
F. C. Blake

PNAS August 1, 1918 4 (8) 236-241; https://doi.org/10.1073/pnas.4.8.236

National Research Council

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Executive Order Issued by the President of the United States, May 11, 1918
Woodrow Wilson

PNAS August 1, 1918 4 (8) 251; https://doi.org/10.1073/pnas.4.8.251
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Minutes of the Second Meeting of the Executive Board of the War Organization in Joint Session with the Council of the National Academy of Sciences
PNAS August 1, 1918 4 (8) 252-255; https://doi.org/10.1073/pnas.4.8.252
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Minutes of Third Meeting of Executive Board of War Organization
John Johnston

PNAS August 1, 1918 4 (8) 256-260; https://doi.org/10.1073/pnas.4.8.256
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Report of the Annual Meeting
Home Secretary

PNAS August 1, 1918 4 (8) 261-274; https://doi.org/10.1073/pnas.4.8.261

Journal_Article

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Award of Medals
PNAS August 1, 1918 4 (8) 273; https://doi.org/10.1073/pnas.4.8.273
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Research Grants from Trust Funds of the Academy
PNAS August 1, 1918 4 (8) 273-274; https://doi.org/10.1073/pnas.4.8.273-a