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Volume 9(1);  January 1923
The cover of the journal
Mathematics
On Riemann Spaces Conformal to Euclidean Space
H. W. Brinkmann
Proc Natl Acad Sci U S A. 1923 January; 9(1): 1–3.
PMCID: PMC1085208
Equiaffine Geometry of Paths
O. Veblen
Proc Natl Acad Sci U S A. 1923 January; 9(1): 3–4.
PMCID: PMC1085209
Affine Geometries of Paths Possessing an Invariant Integral
L. P. Eisenhart
Proc Natl Acad Sci U S A. 1923 January; 9(1): 4–7.
PMCID: PMC1085210
Closed Connected Sets Which Are Disconnected by the Removal of a Finite Number of Points
John Robert Kline
Proc Natl Acad Sci U S A. 1923 January; 9(1): 7–12.
PMCID: PMC1085211
Some Extensions in the Mathematics of Hydromechanics
Robert S. Woodward
Proc Natl Acad Sci U S A. 1923 January; 9(1): 13–18.
PMCID: PMC1085212
Pathology
Hydrohepatosis, a Condition Analogous to Hydronephrosis
Philip D. McMaster and Peyton Rous
Proc Natl Acad Sci U S A. 1923 January; 9(1): 19–21.
PMCID: PMC1085213
Physics
A Quantum Theory of Optical Dispersion
C. G. Darwin
Proc Natl Acad Sci U S A. 1923 January; 9(1): 25–30.
PMCID: PMC1085216
Physiology
Novocaine and Curarisation
H. Laugier and R. Legendre
Proc Natl Acad Sci U S A. 1923 January; 9(1): 21–23.
PMCID: PMC1085214
Undernutrition and Its Influence on the Metabolic Plane of Steers
Francis G. Benedict and Ernest G. Ritzman
Proc Natl Acad Sci U S A. 1923 January; 9(1): 23–25.
PMCID: PMC1085215
Zoölogy
Circus Movements of Limulus
William H. Cole
Proc Natl Acad Sci U S A. 1923 January; 9(1): 30–32.
PMCID: PMC1085217
Journal Matter
Original table of contents page
Administrative content — journal masthead, notices, indexes, etc.
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