This journal provides immediate access to some articles. Volume 28(3); March 1942 Biochemistry Complement Fixation with Simple Substances Containing Two or More Haptenic Groups PMCID: PMC1078417 Botany Hypoxanthine, a Growth Substance for Phycomyces PMCID: PMC1078414 Chemistry The Oxidation of 3,5-Diiodotyrosine to Thyroxine PMCID: PMC1078416 Genetics Size Genes of Mice PMCID: PMC1078415 Mathematics Maximal Sylow Subgroups of a Given Group PMCID: PMC1078418 An Inverse Problem Concerning a Chain Process PMCID: PMC1078419 On Confidence Intervals PMCID: PMC1078420 On Contingency Tables PMCID: PMC1078421 Concerning the Differential Equations of Some Boundary Layer Problems: II PMCID: PMC1078422 Unstable Minimal Surfaces with Any Rectifiable Boundary PMCID: PMC1078423 On Homogeneous Measure Algebras PMCID: PMC1078424 Physics On the Depolarization of Neutron Beams by Magnetic Fields PMCID: PMC1078425 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||