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Volume 39(1);  January 1953
The cover of the journal
Astronomy
Magellanic Clouds: V. Fifty Eclipsing Stars
Harlow Shapley and Virginia McKibben Nail
Proc Natl Acad Sci U S A. 1953 January; 39(1): 1–5.
PMCID: PMC1063716
Biochemistry
Evidence for the Synthesis of Vitamin B12 by Spontaneous Tumors
D. W. Woolley
Proc Natl Acad Sci U S A. 1953 January; 39(1): 6–18.
PMCID: PMC1063717
Chemistry
Phenomena in the Liquid-Liquid Critical Region
George Jura, Don Fraga, Gilda Maki, and Joel H. Hildebrand
Proc Natl Acad Sci U S A. 1953 January; 39(1): 19–23.
PMCID: PMC1063718
Chromatographic Separation and Identification of Some Peptides in Partial Hydrolysates of Gelatin
W. A. Schroeder, Lewis Honnen, and F. Charlotte Green
Proc Natl Acad Sci U S A. 1953 January; 39(1): 23–30.
PMCID: PMC1063719
Genetics
Viability of Hybrids Between Local Populations of Drosophila Pseudoobscura
M. Vetukhiv
Proc Natl Acad Sci U S A. 1953 January; 39(1): 30–34.
PMCID: PMC1063720
Mathematics
On Complexes with Operators
Beno Eckmann
Proc Natl Acad Sci U S A. 1953 January; 39(1): 35–42.
PMCID: PMC1063721
Minimax Theorems
Ky Fan
Proc Natl Acad Sci U S A. 1953 January; 39(1): 42–47.
PMCID: PMC1063722
On the Poincaré Polynomials of the Classical Groups—Addendum
F. D. Murnaghan
Proc Natl Acad Sci U S A. 1953 January; 39(1): 48.
PMCID: PMC1063723
On Eigenfunction Expansions
F. I. Mautner
Proc Natl Acad Sci U S A. 1953 January; 39(1): 49–53.
PMCID: PMC1063724
Zoology
Abnormality of Down Pigmentation Associated with Experimentally Produced Skeletal Defects of Chicks
Walter Landauer
Proc Natl Acad Sci U S A. 1953 January; 39(1): 54–58.
PMCID: PMC1063725
Journal Matter
Original table of contents page
Administrative content — journal masthead, notices, indexes, etc.
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