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Volume 9(7);  July 1923
The cover of the journal
Anthropology
The Correlation of Respiratory and Circulatory Data for Adult Males
Clark Wissler
Proc Natl Acad Sci U S A. 1923 July; 9(7): 252–253.
PMCID: PMC1085370
Engineering
On the Constant Ratio of Mean-to-mid Potential or Current at Successive Equidistant Points Along a Uniform Electric Conducting Line, Real or Artificial, in the Steady State
A. E. Kennelly
Proc Natl Acad Sci U S A. 1923 July; 9(7): 215–221.
PMCID: PMC1085361
Some Recent Measurements of Trans-Atlantic Radio Transmission
Ralph Bown
Proc Natl Acad Sci U S A. 1923 July; 9(7): 221–225.
PMCID: PMC1085362
Genetics
Body Build and its Inheritance
C. B. Davenport
Proc Natl Acad Sci U S A. 1923 July; 9(7): 226–230.
PMCID: PMC1085363
Mathematics
A Bohr-Langmuir Transformation
G. C. Evans
Proc Natl Acad Sci U S A. 1923 July; 9(7): 230–236.
PMCID: PMC1085364
Form of the Number of the Subgroups of a Prime Power Group
G. A. Miller
Proc Natl Acad Sci U S A. 1923 July; 9(7): 237–238.
PMCID: PMC1085365
Paleontology
Studies of the Larger Tertiary Foraminifera from Tropical and Subtropical America
T. Wayland Vaughan
Proc Natl Acad Sci U S A. 1923 July; 9(7): 253–257.
PMCID: PMC1085371
Physics
The Interference of Light and the Quantum Theory
G. Breit
Proc Natl Acad Sci U S A. 1923 July; 9(7): 238–243.
PMCID: PMC1085366
Note on the Width of Spectral Lines Due to Collisions and Quantum Theory
G. Breit
Proc Natl Acad Sci U S A. 1923 July; 9(7): 244–246.
PMCID: PMC1085367
Change in Wave-length by Scattering
P. A. Ross
Proc Natl Acad Sci U S A. 1923 July; 9(7): 246–248.
PMCID: PMC1085368
Notes on Germanium Oxide
E. L. Nichols
Proc Natl Acad Sci U S A. 1923 July; 9(7): 248–251.
PMCID: PMC1085369
Physiology
Mechanics of Locomotion in Amoeba
S. O. Mast
Proc Natl Acad Sci U S A. 1923 July; 9(7): 258–261.
PMCID: PMC1085372
Journal Matter
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