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Volume 25(10);  October 1939
The cover of the journal
Chemistry
The Magnetic Properties of the Compounds Ethylisocyanide-Ferrohemoglobin and Imidazole-Ferrihemoglobin
Charles D. Russell and Linus Pauling
Proc Natl Acad Sci U S A. 1939 October; 25(10): 517–522.
PMCID: PMC1077959
Crystalline Echinochrome and Spinochrome: Their Failure to Stimulate the Respiration of Eggs and of Sperm of Strongylocentrotus
Albert Tyler
Proc Natl Acad Sci U S A. 1939 October; 25(10): 523–528.
PMCID: PMC1077960
Mathematics
Groups Which Contain Ten or Eleven Proper Subgroups
G. A. Miller
Proc Natl Acad Sci U S A. 1939 October; 25(10): 540–543.
PMCID: PMC1077963
Linear Operations among Summable Functions
Nelson Dunford and B. J. Pettis
Proc Natl Acad Sci U S A. 1939 October; 25(10): 544–550.
PMCID: PMC1077964
Physics
The Finite Stieltjes Momentum Problem
Kurt Friedrichs and Gabriel Horvay
Proc Natl Acad Sci U S A. 1939 October; 25(10): 528–534.
PMCID: PMC1077961
The Non-Linear Boundary Value Problem of the Buckled Plate
K. O. Friedrichs and J. J. Stoker
Proc Natl Acad Sci U S A. 1939 October; 25(10): 535–540.
PMCID: PMC1077962
Physiology and Biochemistry
The Nature of Chromosome Division and the Duration of the Nuclear Cycle
A. Marshak
Proc Natl Acad Sci U S A. 1939 October; 25(10): 502–510.
PMCID: PMC1077957
A Comparison of the Sensitivity of Mitotic and Meiotic Chromosomes of Vicia Faba and Its Bearing on Theories of Crossing-Over
A. Marshak
Proc Natl Acad Sci U S A. 1939 October; 25(10): 510–516.
PMCID: PMC1077958
Zoölogy and Anatomy
The Relation of the Eyes to the Integumentary Color Changes in the Catfish Ameiurus
G. H. Parker
Proc Natl Acad Sci U S A. 1939 October; 25(10): 499–502.
PMCID: PMC1077956
Journal Matter
Administrative content — journal masthead, notices, indexes, etc.
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