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Volume 11, Number 5 (1930)

Full Issue

Articles

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Gustavus Detlef Hinrichs p. 193-201
Charles Clayton Wylie

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The Iowa Academy of Science p. 202-213
J A. Swisher

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A Unique Survey p. 214-226
Charles Reuben Keyes

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Comment p. 227-228
John Ely Briggs

Edited by John Ely Briggs