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Volume 10(11);  November 1924
The cover of the journal
Biology
On the Possibility of Identifying Chemical Processes in Living Matter
W. J. Crozier
Proc Natl Acad Sci U S A. 1924 November; 10(11): 461–464.
PMCID: PMC1085753
Chemistry
The Separation of Isotopes by the Ionic Migration Method
James Kendall and James F. White
Proc Natl Acad Sci U S A. 1924 November; 10(11): 458–461.
PMCID: PMC1085752
Engineering
Time Constants for Engineering Purposes in Simple Exponential Transient Phenomena
A. E. Kennelly
Proc Natl Acad Sci U S A. 1924 November; 10(11): 467–473.
PMCID: PMC1085755
Mathematics
Concerning Sets of Segments Which Cover a Point Set in the Vitali Sense
R. L. Moore
Proc Natl Acad Sci U S A. 1924 November; 10(11): 464–467.
PMCID: PMC1085754
Physics
The Secondary Electrons Produced by Hard X-Rays in Light Elements
Hugo Fricke and Otto Glasser
Proc Natl Acad Sci U S A. 1924 November; 10(11): 441–447.
PMCID: PMC1085749
The Diffusion of Hydrogen into Air Measured by the Interferometer U-Gauge
Carl Barus
Proc Natl Acad Sci U S A. 1924 November; 10(11): 447–452.
PMCID: PMC1085750
White Light Interference Fringes with a Thick Glass Plate in One Path
W. N. Birchby
Proc Natl Acad Sci U S A. 1924 November; 10(11): 452–457.
PMCID: PMC1085751
Journal Matter
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