This journal provides immediate access to some articles. Volume 14(5); May 1928 Astronomy On the Contours of Stellar Absorption Lines, and the Composition of Stellar Atmospheres PMCID: PMC1085529 Genetics Is Pituitary Secretion Concerned in the Inheritance of Body-Size? PMCID: PMC1085528 Geology Regional Isostatic Reduction of Gravity Determinations PMCID: PMC1085530 Proof of Isostasy by a Simple Gravity Reduction Method PMCID: PMC1085531 Mathematics Singular Points of Vector Fields under General Boundary Conditions PMCID: PMC1085532 Remark on the Number of Classes of Binary Quadratic Forms of a Given Negative Determinant PMCID: PMC1085533 Concerning Certain Types of Non-Cut Points, with an Application to Continuous Curves PMCID: PMC1085534 Concerning Irreducible Continua PMCID: PMC1085535 Criteria for the Simplification of Algebraic Plane Curves PMCID: PMC1085536 Physics On the Quantum Theory of the Autoelectric Field Currents PMCID: PMC1085522 The Fermi Statistical Postulate; Examination of the Evidence in Its Favor PMCID: PMC1085523 Sommerfeld's Electron-Theory of Metals PMCID: PMC1085524 Electron “Free Path” and Supra-Conductivity in Metals PMCID: PMC1085525 Dispersion of Long Wave-Length X-Rays in Platinum and Calcite PMCID: PMC1085526 Mobilities of Gaseous Ions in SO2 and SO2-H2 Mixtures PMCID: PMC1085527 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||