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This journal provides immediate access to some articles. Volume 17(4); April 1931 Chemistry Activation by Charcoal PMCID: PMC1076025 Aromatic Substitution Products with Fluorine PMCID: PMC1076026 Reversible Coagulation in Living Tissue: II PMCID: PMC1076027 Genetics Further Observations on the Nature of the X-Prime (X′) Chromosome in Sciara PMCID: PMC1076029 Mathematics On the Unifield Field Theory: V PMCID: PMC1076030 The Least Area Property of the Minimal Surface Determined by an Arbitrary Jordan Contour PMCID: PMC1076031 Function Space-Time Manifolds PMCID: PMC1076032 Physics The Composition of the Interior of the Earth PMCID: PMC1076033 Rotational Raman Spectrum of CO2 PMCID: PMC1076034 Physiology and Pathology I. The Reaction to Posterior Pituitary Extract (Pituitrin) When Introduced into the Cerebral Ventricles PMCID: PMC1076022 II. The Similarity in the Response to Posterior Lobe Extract (Pituitrin) and to Pilocarpine When Injected into the Cerebral Ventricles PMCID: PMC1076023 III. The Action of Atropine in Counteracting the Effects of Pituitrin and of Pilocarpine Injected into the Cerebral Ventricles PMCID: PMC1076024 Zoölogy Movement of the So-Called Hairs in the Ampullar Organs of Fish Ears PMCID: PMC1076028 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||
