This journal provides immediate access to some articles. Volume 24(10); October 1938 Genetics Chromsome Phylogeny PMCID: PMC1077132 Mathematics The Relative Numbers of the Subgroups and Operators of Certain Groups PMCID: PMC1077138 On Interpolation and Approximation by Functions Analytic and Bounded in a Given Region PMCID: PMC1077139 A New Foundation of Non-Euclidean, Affine, Real Projective and Euclidean Geometry PMCID: PMC1077140 A Jordan Space Curve Having the Infinite Area Property at Each of Its Points PMCID: PMC1077141 Paleontology Preliminary Report on Recent Geological and Archaeological Discoveries Relating to Early Man in Southeast Asia PMCID: PMC1077127 Physics Theory of Transversal Curves and the Connections Between the Calculus of Variations and the Theory of Partial Differential Equations PMCID: PMC1077137 Physiology The Time Course of Photosynthesis as Shown by the Glass Electrode, with Anomalies in the Acidity Changes PMCID: PMC1077128 The Time Course of Photosynthesis as Shown by a Rapid Electrode Method for Oxygen PMCID: PMC1077129 Reversal of the Potassium Effect in Nitella PMCID: PMC1077130 Syntheses Carried Out in Vivo by Isolated Pea Roots: I PMCID: PMC1077131 Zoölogy Feather Characterization as Studied in Host-Graft Combinations Between Chick Embryos of Different Breeds PMCID: PMC1077133 Concerning the Origin of the Polytene Chromosomes of Diptera PMCID: PMC1077134 Some Effects of Light Intensity and Shade of Background Upon the Melanin Content of Gambusia PMCID: PMC1077135 The Effects of Light and Dark Backgrounds Upon the Incidence of a Seemingly Infectious Disease in Fishes PMCID: PMC1077136 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||