This journal provides immediate access to some articles. Volume 18(7); July 1932 Chemistry Isovioluric Acid (Alloxan-6-Oxime) PMCID: PMC1076262 Concentration of the H2 Isotope of Hydrogen by the Fractional Electrolysis of Water PMCID: PMC1076263 The Electronic Structure of the Normal Nitrous Oxide Molecule PMCID: PMC1076264 Genetics The Genetic Demonstration of Double Strand Crossing-Over in Zea Mays PMCID: PMC1076259 The Behavior of Vermilion-Suppressor in Mosaics PMCID: PMC1076260 Geology and Paleontology Eocene Land Mammals of the Pacific Coast PMCID: PMC1076269 Mathematics Orders for Which There Exist Exactly Four or Five Groups PMCID: PMC1076266 On Interpolation to Harmonic Functions by Harmonic Polynomials PMCID: PMC1076267 Partial Differentiation in the Large PMCID: PMC1076268 Physiology and Pathology Further Concerning a Parasympathetic Center in the Interbrain: VII. The Effect of Intraventricularly-Injected Histamine PMCID: PMC1076265 Psychology and Anthropology Stratigraphical Research in Central Mexico PMCID: PMC1076261 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||