This journal provides immediate access to some articles. Volume 6(5); May 1920 Chemistry The Relation Between the Iso-Electric Point of a Globulin and Its Solubility and Acid Combining Capacity in Salt Solution PMCID: PMC1084499 Genetics Calculating Ancestral Influence in Man: A Mathematical Measure of the Demonstrated Facts of Bi-Sexual Heredity PMCID: PMC1084494 A Note on the Human Sex Ratio PMCID: PMC1084497 Geology A General Sinking of Sea-Level in Recent Time PMCID: PMC1084496 Mathematics On Kummer's Memoir of 1857 Concerning Fermat's Last Theorem PMCID: PMC1084501 Physics The Existence of Homogeneous Groups of Large Ions PMCID: PMC1084498 An Improved Form of High Tension D. C. Apparatus PMCID: PMC1084502 Physiology The Effect of Anesthetics on Living Cells PMCID: PMC1084495 The Carbon Dioxide: Heat Ratio in Cattle PMCID: PMC1084500 Zoölogy The Effect of the Concentration of Nitrates on the Reducing Powers of Bacteria PMCID: PMC1084503 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||