This journal provides immediate access to some articles. Volume 11(10); October 1925 Biology The Life History of a Micro-Parasite Isolated from Carcinomatous Growths PMCID: PMC1086184 Chemistry The Structure of the Hydrogen Molecule Ion PMCID: PMC1086173 The Mechanism of Carbohydrate Utilization PMCID: PMC1086174 The Separation of Chlorine into Isotopes (Isotopic Elements) and the Whole Number Rule for Atomic Weights PMCID: PMC1086175 The Radioactivity of Potassium, Rubidium and Other Elements PMCID: PMC1086176 The Oriented Wedge Theory of Emulsions PMCID: PMC1086177 Polymolecular and Monomolecular Films PMCID: PMC1086178 The Isotopic Composition of the Element Chlorine in the Meteorites: The Atomic Weight of Meteoric and Terrestrial Chlorine PMCID: PMC1086179 The Effect of X-Rays on the Platinum Catalyst in the Contact Sulfuric Acid Reaction PMCID: PMC1086180 Genetics The Japanese Waltzing Mouse, Its Origin and Genetics PMCID: PMC1086181 Mathematics Announcement of a Projective Theory of Affinely Connected Manifolds PMCID: PMC1086163 Transformations of Einstein Spaces PMCID: PMC1086164 On the Equi-projective Geometry of Paths PMCID: PMC1086165 Physics On Fluorescence Radiation of Nitrogen PMCID: PMC1086166 X-Ray Spectra from a Ruled Reflection Grating PMCID: PMC1086167 An Attempt to Test the Quantum Theory of X-Ray Scattering PMCID: PMC1086168 The Viscosity of Liquids under Pressure PMCID: PMC1086169 The Aging Effect in the Mobility of Positive Ions PMCID: PMC1086170 Thermal Conductivity and Thermo-Electromotive Force of Single Metal Crystals PMCID: PMC1086171 On the Quantum Theory of the Polarization of Resonance Radiation in Magnetic Fields PMCID: PMC1086172 Physiology The Fixity of Basal Metabolism PMCID: PMC1086162 Statistics A Statistical Approach to the Epidemiology of Cholera in Madras Presidency PMCID: PMC1086182 The Distribution of Correlation Ratios Calculated from Random Data PMCID: PMC1086183 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||