This journal provides immediate access to some articles. Volume 38(5); May 1952 Bacteriology Antibiotic-Producing Properties of Streptomyces 3560, A Member of the S. Flavus Group PMCID: PMC1063569 The Relationship Between Photosynthesis and Nitrogen Fixation PMCID: PMC1063570 Biochemistry Oxidation-Reduction Potentials of the Diphosphopyridine Nucleotide System PMCID: PMC1063571 Chemistry On the Distribution of Charge in the CO Bond of CO2 PMCID: PMC1063572 Genetics A Case of “Maternal” Inheritance in Neurospora Crassa PMCID: PMC1063583 Mathematics A New Theory of Vortex Streets PMCID: PMC1063573 Complex Fiber Bundles PMCID: PMC1063574 The Einstein Connection of the Unified Theory of Relativity PMCID: PMC1063575 Some Remarks on Representations of Connected Groups PMCID: PMC1063576 On the Modular Representations of the Symmetric Group (III) PMCID: PMC1063577 Fiber Spaces and the Eilenberg Homology Groups PMCID: PMC1063578 On an Application of Tarski's Theory of Truth PMCID: PMC1063579 On the Existence of Subsonic Flows of a Compressible Fluid PMCID: PMC1063580 Group Invariant Integration and the Fundamental Theorem of Algebra PMCID: PMC1063581 Small Subgroups of Finite-Dimensional groups PMCID: PMC1063582 Physics On the Law of Conservation of Heavy Particles PMCID: PMC1063584 Physiology On the Sodium and Potassium Balance of Isolated Frog Muscles PMCID: PMC1063585 Zoology Transplantation of Living Nuclei From Blastula Cells into Enucleated Frogs' Eggs PMCID: PMC1063586 Cytochemical Studies of the Action of Trypsin: I. Digestion of Salivary-Gland Chromosomes PMCID: PMC1063587 Correction The Effects of Carbon Monoxide and Oxygen on the Frequency of X-Ray Induced Chromosome Aberrations in Tradescantia PMCID: PMC1063588 Corrects: The Effects of Carbon Monoxide and Oxygen on the Frequency of X-Ray Induced Chromosome Aberrations in Tradescantia. Proc Natl Acad Sci U S A. 1952 January; 38(1): 34–43. Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||