This journal provides immediate access to some articles. Volume 12(11); November 1926 Genetics The Development of Mendelian Characters in Aplocheilus Latipes PMCID: PMC1084738 Physics Gas Ion Mobilities in Ether-Hydrogen Mixtures PMCID: PMC1084732 A Refinement of the Michelson-Morley Experiment PMCID: PMC1084733 On the Evaluation of Certain Integrals Important in the Theory of Quanta PMCID: PMC1084734 The New Quantum Theory and the Zeeman Effect PMCID: PMC1084735 The Dispersion of Atomic Hydrogen: I—A Measure PMCID: PMC1084736 The Dispersion of Atomic Hydrogen: II—A Calculation PMCID: PMC1084737 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||