This journal provides immediate access to some articles. Volume 39(2); February 1953 Biochemistry Comparison of the Phosphorus Content, Optical Rotation, Separation of Hemes and Globin, and Terminal Amino Acid Residurs of Normal Adult Human Hemoglobin and Sickle Cell Anemia Hemoglobin PMCID: PMC1063729 Electrophoretic Studies of Globins Prepared From Normal Adult and Sickle Cell Hemoglobins PMCID: PMC1063730 Botany The Effect of Ammonia on Morphogenesis in the Acrasieae PMCID: PMC1063731 Biometric Evidence of Natural Selection in Asclepias Tuberosa PMCID: PMC1063732 Chemistry A Study of Lignin Formation Based on the Oxidation of Native and Enzymatically Liberated Lignins PMCID: PMC1063733 A Proposed Structure For The Nucleic Acids PMCID: PMC1063734 Genetics Induced Dominant Lethality in Lilium PMCID: PMC1063735 Kappa Concentration per Cell in Relation to the Life Cycle, Genotype and Mating Type in Paramecium Aurelia, Variety 4 PMCID: PMC1063736 Mating Type Determination in Paramecium Aurelia, a Model of Nucleo-Cytoplasmic Interaction PMCID: PMC1063737 Mathematics Representations by Cubic Congruences PMCID: PMC1063738 Almost Periodic Functions on Locally Compact Groups PMCID: PMC1063739 Pathology Organismal Differentials and Organ Differentials PMCID: PMC1063740 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||