Table of Contents

January 15, 1941; 27 (1)

Chemistry

  • Chemistry:
    • Esmond E. Snell
    • and Herschel K. Mitchell

    Purine and Pyrimidine as Growth Substances for Lactic Acid Bacteria

    Proc Natl Acad Sci U S A 1941 27:1-7

Pathology and Bacteriology

  • Pathology and Bacteriology:
    • Edwin B. Wilson
    • and Jane Worcester

    Contact and Measles

    Proc Natl Acad Sci U S A 1941 27:7-13

Botany

  • Botany:
    • T. H. Goodspeed
    • and P. Avery

    The Twelfth Primary Trisomic Type in Nicotiana Sylvestris

    Proc Natl Acad Sci U S A 1941 27:13-14

ZoÖlogy and Anatomy

  • ZoÖlogy and Anatomy:
    • Albert P. Blair

    Isolating Mechanisms in Tree Frogs

    Proc Natl Acad Sci U S A 1941 27:14-17

Genetics

  • Genetics:
    • B. P. Kaufmann

    The Time Interval between X-Radiation of Sperm of Drosophila and Chromosome Recombination

    Proc Natl Acad Sci U S A 1941 27:18-24
  • Genetics:
    • M. Demerec
    • and U. Fano

    Mechanism of the Origin of X-Ray Induced Notch Deficiencies in Drosophila Melanogaster

    Proc Natl Acad Sci U S A 1941 27:24-31
  • Genetics:
    • E. B. Lewis

    Another Case of Unequal Crossing-Over in Drosophila Melanogaster

    Proc Natl Acad Sci U S A 1941 27:31-35
  • Genetics:
    • Albert Miller

    Position of Adult Testes in Drosophila Melanogaster Meigen

    Proc Natl Acad Sci U S A 1941 27:35-41
  • Genetics:
    • J. Gordon Carlson

    An Analysis of X-Ray Induced Single Breaks in Neuroblast Chromosomes of the Grasshopper (Chortophaga Viridifasciata)

    Proc Natl Acad Sci U S A 1941 27:42-47
  • Genetics:
    • Th. Dobzhansky

    Discovery of a Predicted Gene Arrangement in Drosophila Azteca

    Proc Natl Acad Sci U S A 1941 27:47-50

Mathematics

  • Mathematics:
    • Richard Courant

    Critical Points and Unstable Minimal Surfaces

    Proc Natl Acad Sci U S A 1941 27:51-57
  • Mathematics:
    • N. Coburn

    A Note on Conformal Geometry

    Proc Natl Acad Sci U S A 1941 27:57-60
  • Mathematics:
    • W. Hurewicz
    • and N. E. Steenrod

    Homotopy Relations in Fibre Spaces

    Proc Natl Acad Sci U S A 1941 27:60-64
  • Mathematics:
    • George D. Birkhoff

    Note on Linear Difference and Differential Equations

    Proc Natl Acad Sci U S A 1941 27:65-67
  • Mathematics:
    • G. A. Miller

    Maximal Subgroups of a Given Group

    Proc Natl Acad Sci U S A 1941 27:68-71
  • Mathematics:
    • H. M. MacNeille

    A Unified Theory of Integration

    Proc Natl Acad Sci U S A 1941 27:71-76
  • Mathematics:
    • H. S. Vandiver

    On Improperly Irregular Cyclotomic Fields

    Proc Natl Acad Sci U S A 1941 27:77-83
  • Mathematics:
    • M. H. Stone

    A General Theory of Spectra

    Proc Natl Acad Sci U S A 1941 27:83-87
  • Mathematics:
    • Edward Kasner
    • and John De Cicco

    General Invariants of Irregular Analytic Elements

    Proc Natl Acad Sci U S A 1941 27:88-92

This Issue

  1. Chemistry
  2. Pathology and Bacteriology
  3. Botany
  4. ZoÖlogy and Anatomy
  5. Genetics
  6. Mathematics

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