Iowa State College Journal of Science 31.4
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1957-05-01
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Iowa State University Digital Repository
The Iowa State University Digital Repository is the open access institutional repository for the university to collect, manage, share, and preserve free, worldwide access to research and scholarship of Iowa State faculty, staff, and students.
Material in the Digital Repository covers a wide range of disciplines from engineering to social sciences to arts and humanities.
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Iowa State University Digital Repository
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