This journal provides immediate access to some articles. Volume 38(11); November 1952 Biochemistry Production of Illudin M and of a Fourth Crystalline Compound by Clitocybe Illudens PMCID: PMC1063684 Botany The Reaction Controlling Floral Initiation PMCID: PMC1063685 Chemistry Electron Exchange-Polymers PMCID: PMC1063686 The Thermal Decomposition of Cyclobutane PMCID: PMC1063687 An Ultracentrifuge Cell for Producing Boundaries Synthetically by a Layering Technique PMCID: PMC1063688 Genetics The Beadex Locus in Drosophila Melanogaster: The Genotypic Constitution of Bxr PMCID: PMC1063689 The Pseudoallelism of White and Apricot in Drosophila Melanogaster PMCID: PMC1063690 Mathematics On the Number of Bound States in a Central Field of Force PMCID: PMC1063691 On the Invariant Theory of the Classical Groups PMCID: PMC1063692 On the Decomposition of Tensors by Contraction PMCID: PMC1063693 The Hypothesis that all Classes are Nameable PMCID: PMC1063694 On Cyclotomy and Extensions of Gaussian Type Quadratic Relations Involving Numbers of Solutions of Conditional Equations in Finite Fields PMCID: PMC1063695 Pathology Preliminary Report on the Experimental Induction of Metastases from a Heterologous Cancer Graft in Mice PMCID: PMC1063696 Physiology An Invariant Force Function in Muscle Activity PMCID: PMC1063697 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||