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Table of Contents

August 01, 1928; vol. 14 no. 8

Chemistry

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The Thermal Decomposition of Ammonia upon Mixed Surfaces of Tungsten and Platinum
Robert E. Burk

PNAS August 1, 1928 14 (8) 601-602; https://doi.org/10.1073/pnas.14.8.601
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The Crystal Structure of Topaz
Linus Pauling

PNAS August 1, 1928 14 (8) 603-606; https://doi.org/10.1073/pnas.14.8.603
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The Intensive Drying of Liquids
Sam Lenher and Farrington Daniels

PNAS August 1, 1928 14 (8) 606-609; https://doi.org/10.1073/pnas.14.8.606
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A Progression Relation in the Molecular Spectrum of Oxygen Occurring in the Liquid and in the Gas at High Pressure
Oliver R. Wulf

PNAS August 1, 1928 14 (8) 609-613; https://doi.org/10.1073/pnas.14.8.609
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The Heat of Dissociation of Oxygen as Estimated from Photochemical Ozonization
Oliver R. Wulf

PNAS August 1, 1928 14 (8) 614-617; https://doi.org/10.1073/pnas.14.8.614
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The Crystal Structures of the Alkaline Earth Metals
G. L. Clark, A. J. King, and J. F. Hyde

PNAS August 1, 1928 14 (8) 617-618; https://doi.org/10.1073/pnas.14.8.617

Physics

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Reflection and Refraction of Electrons by a Crystal of Nickel
C. J. Davisson and L. H. Germer

PNAS August 1, 1928 14 (8) 619-627; https://doi.org/10.1073/pnas.14.8.619
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Oscillations in Ionized Gases
Irving Langmuir

PNAS August 1, 1928 14 (8) 627-637; https://doi.org/10.1073/pnas.14.8.627
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Evidence That the Cosmic Rays Originate in Interstellar Space
Robert A. Millikan and G. Harvey Cameron

PNAS August 1, 1928 14 (8) 637-641; https://doi.org/10.1073/pnas.14.8.637
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The Displacement Interferometry of Barometric Pressure
Carl Barus

PNAS August 1, 1928 14 (8) 641-645; https://doi.org/10.1073/pnas.14.8.641
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The Structure of Acetylene
Jared Kirtland Morse

PNAS August 1, 1928 14 (8) 645-649; https://doi.org/10.1073/pnas.14.8.645

Mathematics

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On Derivatives of Non-Analytic Functions
E. R. Hedrick

PNAS August 1, 1928 14 (8) 649-654; https://doi.org/10.1073/pnas.14.8.649
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Radiation and Relativity
G. Y. Rainich

PNAS August 1, 1928 14 (8) 654-657; https://doi.org/10.1073/pnas.14.8.654
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Concerning Plane Closed Point Sets Which Are Accessible from Certain Subsets of Their Complements
Gordon T. Whyburn

PNAS August 1, 1928 14 (8) 657-666; https://doi.org/10.1073/pnas.14.8.657
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Incomplete Systems of Partial Differential Equations
Joseph Miller Thomas

PNAS August 1, 1928 14 (8) 666-670; https://doi.org/10.1073/pnas.14.8.666

ZoÃ¶logy

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The Effect of Temperature on the Viability of Superfemales in Drosophila Melanogaster
Th. Dobzhansky

PNAS August 1, 1928 14 (8) 671-675; https://doi.org/10.1073/pnas.14.8.671

Physiology

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Preliminary Note on the Elastic Hysteresis of the Human Aorta
A. V. Bock, P. S. Bauer, and J. H. Means

PNAS August 1, 1928 14 (8) 675-678; https://doi.org/10.1073/pnas.14.8.675

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