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Volume 24(10);  October 1938
The cover of the journal
Genetics
Chromsome Phylogeny
C. E. McClung
Proc Natl Acad Sci U S A. 1938 October; 24(10): 439–445.
PMCID: PMC1077132
Mathematics
The Relative Numbers of the Subgroups and Operators of Certain Groups
G. A. Miller
Proc Natl Acad Sci U S A. 1938 October; 24(10): 473–476.
PMCID: PMC1077138
On Interpolation and Approximation by Functions Analytic and Bounded in a Given Region
J. L. Walsh
Proc Natl Acad Sci U S A. 1938 October; 24(10): 477–486.
PMCID: PMC1077139
A New Foundation of Non-Euclidean, Affine, Real Projective and Euclidean Geometry
Karl Menger
Proc Natl Acad Sci U S A. 1938 October; 24(10): 486–490.
PMCID: PMC1077140
A Jordan Space Curve Having the Infinite Area Property at Each of Its Points
Jesse Douglas
Proc Natl Acad Sci U S A. 1938 October; 24(10): 490–495.
PMCID: PMC1077141
Paleontology
Preliminary Report on Recent Geological and Archaeological Discoveries Relating to Early Man in Southeast Asia
H. deTerra
Proc Natl Acad Sci U S A. 1938 October; 24(10): 407–413.
PMCID: PMC1077127
Physics
Theory of Transversal Curves and the Connections Between the Calculus of Variations and the Theory of Partial Differential Equations
M. Herzberger
Proc Natl Acad Sci U S A. 1938 October; 24(10): 466–473.
PMCID: PMC1077137
Physiology
The Time Course of Photosynthesis as Shown by the Glass Electrode, with Anomalies in the Acidity Changes
L. R. Blinks and R. K. Skow
Proc Natl Acad Sci U S A. 1938 October; 24(10): 413–419.
PMCID: PMC1077128
The Time Course of Photosynthesis as Shown by a Rapid Electrode Method for Oxygen
L. R. Blinks and R. K. Skow
Proc Natl Acad Sci U S A. 1938 October; 24(10): 420–427.
PMCID: PMC1077129
Reversal of the Potassium Effect in Nitella
W. J. V. Osterhout and S. E. Hill
Proc Natl Acad Sci U S A. 1938 October; 24(10): 427–431.
PMCID: PMC1077130
Syntheses Carried Out in Vivo by Isolated Pea Roots: I
James Bonner and Edwin R. Buchman
Proc Natl Acad Sci U S A. 1938 October; 24(10): 431–438.
PMCID: PMC1077131
Zoölogy
Feather Characterization as Studied in Host-Graft Combinations Between Chick Embryos of Different Breeds
B. H. Willier and Mary E. Rawles
Proc Natl Acad Sci U S A. 1938 October; 24(10): 446–452.
PMCID: PMC1077133
Concerning the Origin of the Polytene Chromosomes of Diptera
Kenneth W. Cooper
Proc Natl Acad Sci U S A. 1938 October; 24(10): 452–458.
PMCID: PMC1077134
Some Effects of Light Intensity and Shade of Background Upon the Melanin Content of Gambusia
F. B. Sumner and P. Doudoroff
Proc Natl Acad Sci U S A. 1938 October; 24(10): 459–463.
PMCID: PMC1077135
The Effects of Light and Dark Backgrounds Upon the Incidence of a Seemingly Infectious Disease in Fishes
F. B. Sumner and P. Doudoroff
Proc Natl Acad Sci U S A. 1938 October; 24(10): 463–466.
PMCID: PMC1077136
Journal Matter
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