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Volume 31(9);  September 1945
Anatomy
Genetic Analysis of the Induction of Tumors by Methylcholanthrene: XI. Germinal Mutations and Other Sudden Biological Changes Following the Subcutaneous Injection of Methylcholanthrene
Leonell C. Strong
Proc Natl Acad Sci U S A. 1945 September; 31(9): 290–293.
PMCID: PMC1078823
Botany
The Three-Dimensional Shapes of Bubbles in Foams
Edwin B. Matzke
Proc Natl Acad Sci U S A. 1945 September; 31(9): 281–289.
PMCID: PMC1078822
Genetics
Pure Strain Mice Born to Hybrid Mothers Following Ovarian Transplantation
W. L. Russell and Jane Goodrich Hurst
Proc Natl Acad Sci U S A. 1945 September; 31(9): 267–273.
PMCID: PMC1078820
Experiments on Sexual Isolation in Drosophila: V. The Effect of Varying Proportions of Drosophila Pseudoobscura and Drosophilia Persimilis on the Frequency of Insemination in Mixed Populations
Howard Levene and Th. Dobzhansky
Proc Natl Acad Sci U S A. 1945 September; 31(9): 274–281.
PMCID: PMC1078821
Mathematics
Topological Methods in the Theory of Functions of a Single Complex Variable: I. Deformation Types of Locally Simple Plane Curves
Marston Morse and Maurice Heins
Proc Natl Acad Sci U S A. 1945 September; 31(9): 299–301.
PMCID: PMC1078825
Topological Methods in the Theory of Functions of a Complex Variable: II. Boundary Values and Integral Characteristics of Interior Transformations and Pseudo-Harmonic Functions
Marston Morse and Maurice Heins
Proc Natl Acad Sci U S A. 1945 September; 31(9): 302–306.
PMCID: PMC1078826
Absolute Scalar Invariants and the Isometric Correspondence of Riemann Spaces
T. Y. Thomas
Proc Natl Acad Sci U S A. 1945 September; 31(9): 306–310.
PMCID: PMC1078827
Bernoulli's Numbers and Certain Arithmetic Quotient Functions
H. S. Vandiver
Proc Natl Acad Sci U S A. 1945 September; 31(9): 310–314.
PMCID: PMC1078828
The Total Differential Equation for the Exponential Function in Non-Commutative Normed Linear Rings
Aristotle D. Michal
Proc Natl Acad Sci U S A. 1945 September; 31(9): 315–317.
PMCID: PMC1078829
Universal Rational Functions
E. T. Bell
Proc Natl Acad Sci U S A. 1945 September; 31(9): 317–319.
PMCID: PMC1078830
Pathology
Damping of Epidemic Waves
Edwin B. Wilson and Jane Worcester
Proc Natl Acad Sci U S A. 1945 September; 31(9): 294–298.
PMCID: PMC1078824
Journal Matter
Original table of contents page
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