This journal provides immediate access to some articles. Volume 23(3); March 1937 Anthropology and Psychology New Evidence Pertaining to Puerto Rican Prehistory PMCID: PMC1076895 Astronomy On the Origin of Interstellar Radio Disturbances PMCID: PMC1076894 Botany Iridophycus in the Northern Hemisphere PMCID: PMC1076892 Effect of Auxin on Chlorella Vulgaris PMCID: PMC1076893 Genetics Chromosomal Deficiencies and the Embryonic Development of Drosophila Melanogaster PMCID: PMC1076884 Deficiencies and Structural Variations within the Giant Chromosomes in Relation to the Problem of Gene Structure PMCID: PMC1076885 Mathematics Immersion of the Fourier Transform in a Continuous Group of Functional Transformations PMCID: PMC1076889 Lattices and Bicompact Spaces PMCID: PMC1076890 Note on the Curvature of Orthogonal Trajectories of Level Curves of Green's Function PMCID: PMC1076891 Physiology and Biochemistry Development of the Eye Colors in Drosophila: Extraction of the Diffusible Substances Concerned PMCID: PMC1076886 Development of Eye Colors in Drosophila: Fat Bodies and Malpighian Tubes as Sources of Diffusible Substances PMCID: PMC1076887 Zoölogy and Anatomy The Regeneration of Plate Rows in Mnemiopsis Leidyi, Agassiz PMCID: PMC1076888 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||