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Volume 53, Annual Issue (1946)

Front Matter

General Interest Articles

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Iowa's First Prairie Preserve
Mrs. Addison Parker

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In Memoriam: Henry Lane Bruner; Lowell Holbrook Chamberlain; Clyde W. Emmons; Annie Wilson Fleming; William Headrick Gemmill; Thomas J. Maney; Florence Willey Nichols; Henry Waldo Norris; Charles Dana Reed
Nathan E. Pearson, O. R. Sweeney, Gertrude A. Herr, Helen F. Smith, Earle D. Ross, H. H. Plagge, Ada Hayden, Henry S. Conard, and Lyle R. Fletcher

Research

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An Ice-Push Ridge
W. A. Anderson

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The Asters of Iowa
Gertrude E. Kellogg

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The Progeny of La France, the First Hybrid Tea
Clark D. Paris and T. J. Maney

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The Addition of Amines to Ethylenimine
Zella A. Hicks and George H. Coleman

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Techniques Used for Improving Visual Efficiency
Robert Allbaugh and Charles Miller

Back Matter