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Volume 38(9);  September 1952
The cover of the journal
Anthropology
Sign and Symbol in Bee Communications
A. L. Kroeber
Proc Natl Acad Sci U S A. 1952 September; 38(9): 753–757.
PMCID: PMC1063650
Biochemistry
Analysis of the Biochemical Mechanism of Drug Resistance in Certain Bacterial Mutants
Bernard D. Davis and Werner K. Maas
Proc Natl Acad Sci U S A. 1952 September; 38(9): 775–785.
PMCID: PMC1063654
Botany
The Effect of Auxin on Growth and Respiration of Artichoke Tissue
David P. Hackett and Kenneth V. Thimann
Proc Natl Acad Sci U S A. 1952 September; 38(9): 770–775.
PMCID: PMC1063653
Chemistry
Viscosities of Solutions of Bi-Bolaform Electrolytes
Paul Goldberg and Raymond M. Fuoss
Proc Natl Acad Sci U S A. 1952 September; 38(9): 758–763.
PMCID: PMC1063651
Theory of the Chemical Reaction Rate Constant
John L. Magee
Proc Natl Acad Sci U S A. 1952 September; 38(9): 764–770.
PMCID: PMC1063652
Genetics
Production of an Altered Pantothenate-Synthesizing Enzyme by a Temperature-Sensitive Mutant of Escherichia Coli
Werner K. Maas and Bernard D. Davis
Proc Natl Acad Sci U S A. 1952 September; 38(9): 785–797.
PMCID: PMC1063655
Transduction of Multiple Nutritional Requirements in Salmonella Typhimurium
Marion E. Berry, A. Marie McCarthy, and H. H. Plough
Proc Natl Acad Sci U S A. 1952 September; 38(9): 797–803.
PMCID: PMC1063656
A Comparison of the Effects of X-Rays and Thermal Neutrons on Dormant Seeds of Barley
Richard S. Caldecott, E. F. Frolik, and Rosalind Morris
Proc Natl Acad Sci U S A. 1952 September; 38(9): 804–809.
PMCID: PMC1063657
The Effects of Carbon Dioxide on the Frequency of X-Ray Induced Chromosome Aberrations in Tradescantia
Edward D. King and Howard A. Schneiderman
Proc Natl Acad Sci U S A. 1952 September; 38(9): 809–812.
PMCID: PMC1063658
Competition Between Drosophila Melanogaster and Drosophila Simulans: II. The Improvement of Competitive Ability Through Selection
John A. Moore
Proc Natl Acad Sci U S A. 1952 September; 38(9): 813–817.
PMCID: PMC1063659
A Morphological Basis for Higher Niacin in Sugary Maize
H. J. Teas
Proc Natl Acad Sci U S A. 1952 September; 38(9): 817–822.
PMCID: PMC1063660
Mathematics
The Fourier Heat Equation in Riemannian Space
Edward Kasner and John De Cicco
Proc Natl Acad Sci U S A. 1952 September; 38(9): 822–825.
PMCID: PMC1063661
Zoology
The Isolation and Biochemical Characterization of the Mitotic Apparatus of Dividing Cells
Daniel Mazia and Katsuma Dan
Proc Natl Acad Sci U S A. 1952 September; 38(9): 826–838.
PMCID: PMC1063662
Journal Matter
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