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Table of Contents

February 01, 1928; vol. 14 no. 2

Chemistry

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The Quantum Theory of Quasi-Unimolecular Gas Reactions
Oscar Knefler Rice

PNAS February 1, 1928 14 (2) 113-118; https://doi.org/10.1073/pnas.14.2.113
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The Theory of the Decomposition of Azomethane
Oscar Knefler Rice

PNAS February 1, 1928 14 (2) 118-124; https://doi.org/10.1073/pnas.14.2.118
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Fundamental Frequencies, Interatomic Forces and Molecular Properties
John R. Bates and Donald H. Andrews

PNAS February 1, 1928 14 (2) 124-130; https://doi.org/10.1073/pnas.14.2.124
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The Effect of Intensive Drying on the Vapor Pressure and Vapor Density of Ammonium Chloride
Worth H. Rodebush and John C. Michalek

PNAS February 1, 1928 14 (2) 131-132; https://doi.org/10.1073/pnas.14.2.131

ZoÃ¶logy

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Some Effects of Dietary Insufficiency in the Ciliate Didinium Nasutum
C. Dale Beers

PNAS February 1, 1928 14 (2) 132-137; https://doi.org/10.1073/pnas.14.2.132

Statistics

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Mendelian Inheritance with Assortive Mating
Edwin B. Wilson

PNAS February 1, 1928 14 (2) 137-140; https://doi.org/10.1073/pnas.14.2.137

Genetics

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Genetic Evidence of a Selective Segregation of Chromosomes in a Second Species of Sciara (Diptera)
Chas. W. Metz

PNAS February 1, 1928 14 (2) 140-141; https://doi.org/10.1073/pnas.14.2.140
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The “Outside-In” Oenothera Flower, a New Morphological Type Produced by the Interaction of Two Recessive Mendelian Factors
George H. Shull

PNAS February 1, 1928 14 (2) 142-146; https://doi.org/10.1073/pnas.14.2.142
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Linkage with Crossing-Over between Rubricalyx Buds and Old-Gold Flower Color in Oenothera
George H. Shull

PNAS February 1, 1928 14 (2) 147-149; https://doi.org/10.1073/pnas.14.2.147

Mathematics

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A New Proof of the Lefschetz Formula on Invariant Points
H. Hopf

PNAS February 1, 1928 14 (2) 149-153; https://doi.org/10.1073/pnas.14.2.149
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Note on Projective Coördinates
H. P. Robertson

PNAS February 1, 1928 14 (2) 153-154; https://doi.org/10.1073/pnas.14.2.153
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Projective Tensors and Connections
Oswald Veblen

PNAS February 1, 1928 14 (2) 154-166; https://doi.org/10.1073/pnas.14.2.154

Physics

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The Molecular Structures of Methane
Jared Kirtland Morse

PNAS February 1, 1928 14 (2) 166-171; https://doi.org/10.1073/pnas.14.2.166
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Additional Lines in the K Series of Molybdenum and the Natural Breadth of Spectral Lines
Bergen Davis and Harris Purks

PNAS February 1, 1928 14 (2) 172-178; https://doi.org/10.1073/pnas.14.2.172
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The Correspondence Principle in the Statistical Interpretation of Quantum Mechanics
J. H. Van Vleck

PNAS February 1, 1928 14 (2) 178-188; https://doi.org/10.1073/pnas.14.2.178
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Experiments with Modified Mucronate Electrodes
Carl Barus

PNAS February 1, 1928 14 (2) 188-191; https://doi.org/10.1073/pnas.14.2.188
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The Mobilities of Gaseous Ions in H₂S-H₂ Mixtures
Leonard B. Loeb and L. DuSault

PNAS February 1, 1928 14 (2) 192-199; https://doi.org/10.1073/pnas.14.2.192

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