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Volume 30(10);  October 15, 1944
Engineering
On Mechanical Self-Excited Oscillations
N. Minorsky
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 308–314.
PMCID: PMC1078718
Genetics
On Spontaneous Mutation
Richard Goldschmidt
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 297–299.
PMCID: PMC1078715
One-Band Inversion
Richard Goldschmidt and Aloha Hannah
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 299–301.
PMCID: PMC1078716
Chromosome Associations in Tetraploid Hybrids between Prime Type 1 and Prime Type 2 in Datura Stramonium
A. D. Bergner
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 302–308.
PMCID: PMC1078717
Mathematics
First Proof that the Mersenne Number M157 Is Composite
H. S. Uhler
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 314–316.
PMCID: PMC1078719
Physics
On the Stability of Two-Dimensional Parallel Flows
C. C. Lin
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 316–324.
PMCID: PMC1078720
Flat Space-Time and Gravitation
George D. Birkhoff
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 324–334.
PMCID: PMC1078721
Zoölogy and Anatomy
Vision and Guanine Production in Fishes
Francis B. Sumner
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 285–294.
PMCID: PMC1078713
The Identification of Guanine in Extracts of Girella Nigricans: The Specificity of Guanase
George H. Hitchings and Elvira A. Falco
Proc Natl Acad Sci U S A. 1944 October 15; 30(10): 294–297.
PMCID: PMC1078714
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