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This journal provides immediate access to some articles. Volume 39(7); July 1953 Biochemistry The Effect of Antibiotics on Urea Breakdown in Mice PMCID: PMC1063826 Path of Ornithine Synthesis in Escherichia Coli PMCID: PMC1063827 Botany Pulcherrimin, The Pigment of Candida Pulcherrima PMCID: PMC1063828 Taxonomic Significance of Root-Hair Development in the Gramineae PMCID: PMC1063829 Chemistry The Molecular Weight of Some Long Chain Salts in Benzene by the Cryoscopic Method PMCID: PMC1063830 Action of Boron Trifluoride Etherate on β-Carotene PMCID: PMC1063831 Genetics Mendelian and Non-Mendelian Factors Affecting the Cytochrome System in Neurospora Crassa PMCID: PMC1063832 Induction of Chromosome Breakage at Meiosis by a Magnesium Deficiency in Tradescantia PMCID: PMC1063833 Unity of the Vegetative Pool in Phage-Infected Bacteria PMCID: PMC1063834 Induction of Mutations in a Bacterial Virus PMCID: PMC1063835 Mathematics Relations on Iterated Reduced Powers PMCID: PMC1063836 Constrained Games and Linear Programming PMCID: PMC1063837 On Arithmetic Genera of Algebraic Varieties PMCID: PMC1063838 Extension Theorems for Solutions of Irreflexive Relations PMCID: PMC1063839 A First Approximation to Homotopy Theory PMCID: PMC1063840 Cohomology and the Riemann-Roch Theorem PMCID: PMC1063841 Physics Image Theory of Superposed Vector Sets PMCID: PMC1063842 Solution Functions for Solving Superposed Patterson Syntheses PMCID: PMC1063843 An Intersection Function and Its Relations to the Minimum Function of X-Ray Crystallography PMCID: PMC1063844 About Space-Time Asymmetry in the Realm of Classical General and Crystal Physics PMCID: PMC1063845 Zoology Action Potentials from an Arthropod Ocellus: The Median Eye of Limulus PMCID: PMC1063846 Correction An Acknowledgement PMCID: PMC1063847 Corrects: An Acknowledgement. Proc Natl Acad Sci U S A. 1953 July; 39(7): 694. Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||
