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Volume 30(12);  December 15, 1944
Botany
Visible Expression of Cytoplasmic Pattern in the Differentiation of Xylem Strands
Edmund W. Sinnott and Robert Bloch
Proc Natl Acad Sci U S A. 1944 December 15; 30(12): 388–392.
PMCID: PMC1078734
Genetics
The Synapsis of the Sex Chromosomes of Drosophila Miranda in Relation to Their Directed Segregation
R. H. MacKnight and Kenneth W. Cooper
Proc Natl Acad Sci U S A. 1944 December 15; 30(12): 384–387.
PMCID: PMC1078733
Pathology and Bacteriology
A Growth-Delaying Effect of Ultraviolet Radiation
S. E. Luria
Proc Natl Acad Sci U S A. 1944 December 15; 30(12): 393–397.
PMCID: PMC1078735
Incidence of Metabolic Changes among Virus-Resistant Mutants of a Bacterial Strain
E. H. Anderson
Proc Natl Acad Sci U S A. 1944 December 15; 30(12): 397–403.
PMCID: PMC1078736
X-Ray Induced Growth Factor Requirements in Bacteria
C. H. Gray and E. L. Tatum
Proc Natl Acad Sci U S A. 1944 December 15; 30(12): 404–410.
PMCID: PMC1078737
Physics
On the Theory of the Tension of an Elastic Cylinder
F. D. Murnaghan
Proc Natl Acad Sci U S A. 1944 December 15; 30(12): 382–384.
PMCID: PMC1078732
Physiology and Biochemistry
The Mechanics of Bioluminescence
William D. McElroy and Robert Ballentine
Proc Natl Acad Sci U S A. 1944 December 15; 30(12): 377–382.
PMCID: PMC1078731
Journal Matter
Administrative content — journal masthead, notices, indexes, etc.
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