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Volume 32(12);  December 1946
The cover of the journal
Genetics
The Frequency of X-Ray-Induced Chromatid Breaks in Tradescantia as Modified by Near Infrared Radiation
C. P. Swanson and Alexander Hollaender
Proc Natl Acad Sci U S A. 1946 December; 32(12): 295–302.
PMCID: PMC1078955
Mathematics
Algebraic Matric Groups
E. R. Kolchin
Proc Natl Acad Sci U S A. 1946 December; 32(12): 306–308.
PMCID: PMC1078957
The Picard-Vessiot Theory of Homogeneous Linear Ordinary Differential Equations
E. R. Kolchin
Proc Natl Acad Sci U S A. 1946 December; 32(12): 308–311.
PMCID: PMC1078958
A Characterization of a Simple Plane Web
R. L. Moore
Proc Natl Acad Sci U S A. 1946 December; 32(12): 311–316.
PMCID: PMC1078959
Cyclotomy and Trinomial Equations in a Finite Field
H. S. Vandiver
Proc Natl Acad Sci U S A. 1946 December; 32(12): 317–319.
PMCID: PMC1078960
On Some Special Trinomial Equations in a Finite Field
H. S. Vandiver
Proc Natl Acad Sci U S A. 1946 December; 32(12): 320–326.
PMCID: PMC1078961
A Partial Differential Equation of Fourth Order Connected with Rational Functions of a Complex Variable
Edward Kasner and John De Cicco
Proc Natl Acad Sci U S A. 1946 December; 32(12): 326–328.
PMCID: PMC1078962
A Reduction Theorem Concerning the Representation Problem for Fréchet Varieties
J. W. T. Youngs
Proc Natl Acad Sci U S A. 1946 December; 32(12): 328–330.
PMCID: PMC1078963
On Sets of Integers Which Contain No Three Terms in Arithmetical Progression
F. A. Behrend
Proc Natl Acad Sci U S A. 1946 December; 32(12): 331–332.
PMCID: PMC1078964
Physics
Reaction and Scattering Cross-Sections
E. P. Wigner
Proc Natl Acad Sci U S A. 1946 December; 32(12): 302–306.
PMCID: PMC1078956
Journal Matter
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