This journal provides immediate access to some articles. Volume 36(11); November 1950 Astronomy On the Derivation of Space Densities in Globular Clusters PMCID: PMC1063268 Bacteriology On the Cytoplasmic Nature of “Long-Term Adaptation” in Yeast PMCID: PMC1063251 Biochemistry Non-Enzymatic Oxidation of Tyrosine and Dopa PMCID: PMC1063252 The Chemical Nature of the Acrosome in the Male Germ Cells PMCID: PMC1063267 Chemistry Coulometric Titrations with Externally Generated Reagents PMCID: PMC1063253 Genetics The Immediate Dependence of the Action of a Specific Gene in Drosophila Melanogaster Upon Fertilization PMCID: PMC1063257 Gene Induced Mutation of a Heritable Cytoplasmic Factor Producing Male Sterility in Maize PMCID: PMC1063258 Differential Rejoining as a Factor in Apparent Sensitivity of Chromosomes to X-Ray Breakage PMCID: PMC1063259 The Constancy of Desoxyribose Nucleic Acid in Plant Nuclei PMCID: PMC1063260 Allelism of Second Chromosome Lethals in D. Melanogaster PMCID: PMC1063261 Mathematics Cohomology Theory of Abelian Groups and Homotopy Theory II PMCID: PMC1063262 Arcs in Locally Compact Groups PMCID: PMC1063263 Pseudo-Conformal Geometry of Polygenic Functions of Several Complex Variables PMCID: PMC1063264 The Element of Volume of the Rotation Group PMCID: PMC1063265 Schwarz' Inequality and Lorentz Spaces PMCID: PMC1063266 Pathology A New Inherited Abnormality of Human Hemoglobin PMCID: PMC1063254 Physics Bioelectric Potentials as a Measure of Radiation Injury PMCID: PMC1063255 Zoology The Loci of Action of Ultra-Violet and X-Radiation, and of Photorecovery, in the Egg and Sperm of the Sea Urchin PMCID: PMC1063256 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||