This journal provides immediate access to some articles. Volume 18(5); May 1932 Astronomy Notes on Stellar Statistics: V. On the Use of the First Laplacean Error Curve PMCID: PMC1076230 The Application of Photoelectric Cells Sensitive in the Infra-Red to Stellar Photometry PMCID: PMC1076231 Chemistry The Combination of Carbon Monoxide and Oxygen under the Influence of Radon PMCID: PMC1076234 Genetics Interaction of Ruffled and Rounded Genes of Drosophila Virilis PMCID: PMC1076226 The Maturation Divisions and Fertilization in Eggs of Sciara Coprophila: Lint PMCID: PMC1076227 Elimination of Chromosomes during Cleavage in the Eggs of Sciara (Diptera) PMCID: PMC1076228 Xenia and Metaxenia in Apples: II PMCID: PMC1076229 Geology and Paleontology “Feather Joints” as Indicators of the Direction of Movements on Faults, Thrusts, Joints and Magmatic Contacts PMCID: PMC1076235 Mathematics On Certain Criteria for Fourier Constants of L Integrable Functions PMCID: PMC1076236 Sphere Geometry and the Conformal Group in Function Space PMCID: PMC1076237 Concerning Uniordered Spaces PMCID: PMC1076238 Remarks on a Theorem of D. V. Widder PMCID: PMC1076239 Physics The Rotational Structure of the Ultra-Violet Absorption Bands of Formaldehyde PMCID: PMC1076232 Zoölogy The Ciliation of the Oviducts of Reptiles PMCID: PMC1076233 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||