Table of Contents

1948-05; 34 (5)

Astronomy

  • Astronomy:
    • Harlow Shapley
    • and Virginia McKibben Nail

    Galactic and Extragalactic Studies

    PNAS 1948 34:173-179

Genetics

  • Genetics:
    • Kenneth W. Cooper

    A New Theory of Secondary Non-Disjunction in Female Drosophila Melanogaster

    PNAS 1948 34:179-187
  • Genetics:
    • Carl C. Lindegren

    The Origin of Volutin on the Chromosomes, Its Transfer to the Nucleolus, and Suggestions Concerning the Significance of this Phenomenon

    PNAS 1948 34:187-193

Mathematics

  • Mathematics:
    • M. H. A. Newman

    Boundaries of ULC Sets in Euclidean n-Space

    PNAS 1948 34:193-196
  • Mathematics:
    • H. S. Vandiver

    Cyclotomic Power Characters and Trinomial Equations in a Finite Field

    PNAS 1948 34:196-203
  • Mathematics:
    • Sylvan Wallach

    The Stability of Differential Equations with Periodic Coefficients

    PNAS 1948 34:203-204
  • Mathematics:
    • André Weil

    On Some Exponential Sums

    PNAS 1948 34:204-207
  • Mathematics:
    • George W. Whitehead

    On Spaces with Vanishing Low-Dimensional Homotopy Groups

    PNAS 1948 34:207-211

Physics

  • Physics:
    • V. Bargmann
    • and E. P. Wigner

    Group Theoretical Discussion of Relativistic Wave Equations

    PNAS 1948 34:211-223

Psychology

  • Psychology:
    • C. G. Mueller
    • and V. V. Lloyd

    Stereoscopic Acuity for Various Levels of Illumination

    PNAS 1948 34:223-227

This Issue

  1. Astronomy
  2. Genetics
  3. Mathematics
  4. Physics
  5. Psychology

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