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This journal provides immediate access to some articles. Volume 1(6); June 1915 Anthropology Exogamy and the Classificatory System of Relationship PMCID: PMC1090819 Article Notices of Biographical Memoirs PMCID: PMC1090832 Astronomy Confirmatory Experiments on the Value of the Solar Constant of Radiation PMCID: PMC1090815 126 Parabolic Orbits of Meteor Streams PMCID: PMC1090823 Unsymmetrical Lines in Tube-Arc and Spark Spectra as an Evidence of a Displacing Action in These Sources PMCID: PMC1090828 The Direction of Rotation of Sun-Spot Vortices PMCID: PMC1090830 Some Vortex Experiments Bearing on the Nature of Sun-Spots and Flocculi PMCID: PMC1090831 Biochemistry Vividiffusion Experiments on the Ammonia of the Circulating Blood PMCID: PMC1090822 Chemistry The Osmotic Pressure of the Ions and of the Undissociated Molecules of Salts in Aqueous Solution PMCID: PMC1090826 Genetics Variation of Flower Size in Nicotiana PMCID: PMC1090816 Parthenocarpy and Parthenogenesis in Nicotiana PMCID: PMC1090818 Sex Ratio in Pigeons, Together with Observations on the Laying, Incubation and Hatching of the Eggs PMCID: PMC1090821 A Method of Obtaining Complete Germination of Seeds in Oenothera and of Recording the Residue of Sterile Seed-Like Structures PMCID: PMC1090825 Geology The Basil Silurian Formations of Eastern North America PMCID: PMC1090824 Mathematics Solution of an Infinite System of Differential Equations of the Analytic Type PMCID: PMC1090820 On the Factorization of Various Types of Expressions PMCID: PMC1090829 Physics The Extension of the Spectrum Beyond the Schumann Region PMCID: PMC1090827 Physiology Retention in the Circulation of Dextrose in Normal and Depancreatized Animals, and the Effect of an Intravenous Injection of an Emulsion of Pancreas Upon This Retention PMCID: PMC1090817 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||
