This journal provides immediate access to some articles. Volume 21(5); May 1935 Chemistry Rate of Growth and Length of Life PMCID: PMC1076575 Genetics The Location of a Gene for Disease Resistance in Maize PMCID: PMC1076577 Linkage Relations of Zavadskaia Shaker in the House Mouse (Mus musculus) PMCID: PMC1076578 Geology and Paleontology The Graptolites of the Simpson Group of Oklahoma PMCID: PMC1076576 Mathematics Generation of any N-Valued Logic by One Binary Operation PMCID: PMC1076579 Generalized Derivatives and Approximation PMCID: PMC1076580 Abstract Critical Sets PMCID: PMC1076581 On Convergence Factors for Series Summable by Nörlund Means PMCID: PMC1076582 Effective Equality and Effective Implication in Formal Logic PMCID: PMC1076583 A Theorem on Extremals: I PMCID: PMC1076584 A Proof of Freedom from Contradiction PMCID: PMC1076585 Physics Intensities of Vibration Rotation Bands PMCID: PMC1076586 Physiology and Biochemistry The Growth Hormone and the Dwarf Type of Growth in Corn PMCID: PMC1076588 Zoölogy and Anatomy What Are the Resting and the Active States of Chromatophores? PMCID: PMC1076587 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||