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This journal provides immediate access to some articles. Volume 29(10); October 15, 1943 Botany Colchicine-Induced Allo- and Autopolyploidy in Nicotiana PMCID: PMC1078618 Genetics Chromosomal Aberrations in Brazilian Drosophila Ananassae PMCID: PMC1078619 A New Method for Hybridizing Yeast PMCID: PMC1078620 Mathematics Special Invariant Subgroups PMCID: PMC1078621 Subgroups Transformed According to a Group of Prime Order PMCID: PMC1078622 On Convex Topological Linear Spaces PMCID: PMC1078623 Natural Logarithms of Small Prime Numbers PMCID: PMC1078624 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||