This journal provides immediate access to some articles. Volume 27(3); March 15, 1941 Anthropology and Psychology A New Form of Culture on the Arctic Coast PMCID: PMC1078291 Astronomy Notes on Binary Stars: IV. A Source of Spurious Eccentricity in Spectroscopic Binaries PMCID: PMC1078297 Notes on Binary Stars: V. The Determination by Least-Squares of the Elements of Spectroscopic Binaries PMCID: PMC1078298 Chemistry Studies in Mineral Metabolism with the Aid of Artificial Radioactive Isotopes: VI. Cobalt PMCID: PMC1078294 Mathematics On Real Closed Curves of Order n + 1 in Projective n-Space PMCID: PMC1078299 Concerning Relatively Non-Alternating Transformations PMCID: PMC1078300 The Minimal Number Problem of Binary Forms PMCID: PMC1078301 Existence, Convergence and Equivalence in the Unified Theory of Eigenvalues of Plates and Membranes PMCID: PMC1078302 Pathology and Bacteriology The Isolation in Culture of Grahamellae from Various Species of Small Rodents PMCID: PMC1078295 Mechanism of Biological Nitrogen Fixation: VI. Inhibition of Azotobacter by Hydrogen PMCID: PMC1078296 Physiology and Biochemistry The Oxidation of Estrogens by Phenolases PMCID: PMC1078293 Zoölogy and Anatomy Effects of Eye-Stalk Removal on Decapod Crustaceans PMCID: PMC1078292 | ||