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Volume 4(10);  October 1918
The cover of the journal
Astronomy
The Smithsonian `Solar Constant' Expedition to Calama, Chile
C. G. Abbot
Proc Natl Acad Sci U S A. 1918 October; 4(10): 313–316.
PMCID: PMC1091478
Genetics
Maroon: A Recurrent Mutation in Drosophila
Calvin B. Bridges
Proc Natl Acad Sci U S A. 1918 October; 4(10): 316–318.
PMCID: PMC1091479
Mathematics
Invariants and Canonical Forms
E. J. Wilczynski
Proc Natl Acad Sci U S A. 1918 October; 4(10): 300–305.
PMCID: PMC1091476
Physics
Types of Phosphorescence
Edward L. Nichols and H. L. Howes
Proc Natl Acad Sci U S A. 1918 October; 4(10): 305–312.
PMCID: PMC1091477
Psychology
Measuring the Mental Strength of an Army
Robert M. Yerkes
Proc Natl Acad Sci U S A. 1918 October; 4(10): 295–297.
PMCID: PMC1091474
Correction
Thermo-Electric Action with Dual Conduction of Electricity
Proc Natl Acad Sci U S A. 1918 October; 4(10): 297–299.
PMCID: PMC1091475
Corrects: Edwin H. Hall. Thermo-Electric Action with Dual Conduction of Electricity. Proc Natl Acad Sci U S A. 1918 April; 4(4): 98–103.
Journal Matter
Original table of contents page
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