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Volume 11(2);  February 1925
The cover of the journal
Astronomy
The Age of the Stars
Edward Condon
Proc Natl Acad Sci U S A. 1925 February; 11(2): 125–130.
PMCID: PMC1085855
Notes on Stellar Statistics: III. On the Calculation of a Mean Absolute Magnitude from Apparent Magnitudes, Angular Proper Motions and Linear Radial Velocities
Willem J. Luyten
Proc Natl Acad Sci U S A. 1925 February; 11(2): 130–133.
PMCID: PMC1085856
The Frequency Distribution on Apparent Magnitude of the Non-Magellanic O-Type Stars
E. B. Wilson and W. J. Luyten
Proc Natl Acad Sci U S A. 1925 February; 11(2): 133–137.
PMCID: PMC1085857
Engineering
The Torsion Problem of Curved Beams
Paul Heymans and W. J. Heymans
Proc Natl Acad Sci U S A. 1925 February; 11(2): 161–166.
PMCID: PMC1085864
Genetics
A New Interpretation of the Hereditary Behavior of Self-Sterile Plants
E. M. East and A. J. Mangelsdorf
Proc Natl Acad Sci U S A. 1925 February; 11(2): 166–171.
PMCID: PMC1085865
Mathematics
On the Intersection Invariants of a Manifold
J. W. Alexander
Proc Natl Acad Sci U S A. 1925 February; 11(2): 143–146.
PMCID: PMC1085859
The Rotating Disc
Philip Franklin
Proc Natl Acad Sci U S A. 1925 February; 11(2): 147–149.
PMCID: PMC1085860
Transitive Groups Involving Direct Products of Lower Degree
G. A. Miller
Proc Natl Acad Sci U S A. 1925 February; 11(2): 150–152.
PMCID: PMC1085861
Physics
Conditions of Electric Equilibrium at Boundary Surfaces; Volta Effect
Edwin H. Hall
Proc Natl Acad Sci U S A. 1925 February; 11(2): 111–116.
PMCID: PMC1085851
The Effect of a Surrounding Box on the Spectrum of Scattered X-Rays
A. H. Compton and J. A. Bearden
Proc Natl Acad Sci U S A. 1925 February; 11(2): 117–119.
PMCID: PMC1085852
The Significance of the Discovery of X-Ray Laws in the Field of Optics
R. A. Millikan and I. S. Bowen
Proc Natl Acad Sci U S A. 1925 February; 11(2): 119–122.
PMCID: PMC1085853
The Compton Effect and Tertiary X-Radiation
Y. H. Woo
Proc Natl Acad Sci U S A. 1925 February; 11(2): 123–125.
PMCID: PMC1085854
Physiology
The Respiratory Function of the Hemocyanins
Alfred C. Redfield and Archer L. Hurd
Proc Natl Acad Sci U S A. 1925 February; 11(2): 152–155.
PMCID: PMC1085862
Prolonged Fasting as Affecting the Composition of Steer's Urine
Thorne M. Carpenter
Proc Natl Acad Sci U S A. 1925 February; 11(2): 155–160.
PMCID: PMC1085863
Statistics
The Population of New York City and Its Environs
Edwin B. Wilson and Willem J. Luyten
Proc Natl Acad Sci U S A. 1925 February; 11(2): 137–143.
PMCID: PMC1085858
Journal Matter
Original table of contents page
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