This journal provides immediate access to some articles. Volume 29(3-4); March 15, 1943 Bacteriology Some Preliminary Studies on the Mechanism of Virus Multiplication PMCID: PMC1078649 The Determination of L.D.50 and Its Sampling Error in Bio-Assay: II PMCID: PMC1078650 Botany Goniolithon and Neogoniolithon: Two Genera of Crustaceous Coralline Algae PMCID: PMC1078644 New or Little Known Crustaceous Corallines of Pacific North America PMCID: PMC1078645 Chemistry Concerning the Relation between Structure and Action of Xanthones on Dehydrogenations by Fusaria PMCID: PMC1078651 Mathematics Linear Partial Differential Equations with Analytic Coefficients PMCID: PMC1078646 Groups Containing a Prime Number of Conjugate Subgroups PMCID: PMC1078647 New Characterizations of Segments and Arcs PMCID: PMC1078648 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||