This journal provides immediate access to some articles. Volume 35(7); July 1949 Botany Antibiotic Substances from Basidiomycetes: IV. Marasmius Conigenus PMCID: PMC1063035 Chemistry The Dissociation Energy of Carbon Monoxide and the Heat of Sublimation of Graphite PMCID: PMC1063038 Aggregation Phenomena in Polyvinyl Alcohol-Acetate Solutions PMCID: PMC1063039 Genetics Chromosome Segregation in Maize Translocations in Relation to Crossing Over in Interstitial Segments PMCID: PMC1063036 Geology Early Tertiary Ecotones in Western North America PMCID: PMC1063037 Mathematics Diffusion Equation and Stochastic Processes PMCID: PMC1063040 On Epstein's Zeta Function (I) PMCID: PMC1063041 On a New Method in Elementary Number Theory Which Leads to An Elementary Proof of the Prime Number Theorem PMCID: PMC1063042 On the Structure of Locally Compact Groups PMCID: PMC1063043 On the Automorphisms of a Sfield PMCID: PMC1063044 Lie Rings in Path Space PMCID: PMC1063045 The Fréchet Variation and the Convergence of Multiple Fourier Series PMCID: PMC1063046 On the Zeros of Successive Derivatives of Entire Functions PMCID: PMC1063047 Homotopy Groups of Certain Algebraic Systems PMCID: PMC1063048 Inequalities between the Two Kinds of Eigenvalues of a Linear Transformation PMCID: PMC1063049 Physics Separation of the Variables in the One-Particle Schroedinger Equation in 3-Space PMCID: PMC1063050 Physical Families in Conservative Fields of Force PMCID: PMC1063051 Correction Bounds for the Solutions of a Second-Order Linear Differential Equation PMCID: PMC1063052 Corrects: Bounds for the Solutions of a Second-Order Linear Differential Equation. Proc Natl Acad Sci U S A. 1949 April; 35(4): 190–191. Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||