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This journal provides immediate access to some articles. Volume 17(6); June 1931 Botany Immunity to Sugar Cane Mosaic Acquired by the Host PMCID: PMC1076058 Chemistry The Heat of Combustion of Methyl Alcohol PMCID: PMC1076061 A Potentiometric Study of Epinephrine PMCID: PMC1076062 Engineering The Distribution of Stresses in Welded and Riveted Connections PMCID: PMC1076063 Genetics Cytological Evidence for Segmental Interchange between Non-Homologous Chromosomes in Maize PMCID: PMC1076059 Mathematics Systems of Algebraic Differential Equations PMCID: PMC1076065 The Number of Representations Function for Positive Binary Quadratic Forms PMCID: PMC1076066 Dynamical Trajectories and the ∞ 3 Plane Sections of a Surface PMCID: PMC1076067 On the Summability of Fourier Series. Fourth Note PMCID: PMC1076068 On the Stability of the Motion of a Viscous Fluid PMCID: PMC1076069 Normal Division Algebras of 22m PMCID: PMC1076070 Physics The Relative Effectiveness of Spectral Radiation for the Vision of the Sun-Fish, Lepomis PMCID: PMC1076064 Electric Conductivity and Optical Absorption in Metals, Once More PMCID: PMC1076071 The Spectral Erythemic Reaction of the Human Skin to Ultra-Violet Radiation PMCID: PMC1076072 Physiology and Pathology The Behavior of the Virus of Yellow Fever in Monkeys and Mice PMCID: PMC1076060 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||
