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Iowa State Journal of Research

Authors

Abstract

A study of the number of doctorates conferred by American universities. Raymond M. Hughes page page 609

Iowa Ascomycetes II. Diaporthaceae: Valseae. Joseph C. Gilman, L.H. Tiffany, and R.M. Lewis page 623

Seed characters of selected plant families. David S. MC Clure page 649

Author and Subject Indices. 683

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