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Volume 16, Annual Issue (1909)

Front Matter

General Interest Articles

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Resolutions on Darwin p. 5-6
T. H. MacBride and L. H. Pammel

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Necrology: W. N. Craven; Wilbert Eugene Harriman p. 7-9
John L. Tilton, L. H. Pammel, A. C. Page, and G. F. Kay

Research

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The Polyporaceae of Fayette Iowa p. 19-22
Guy West Wilson

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Some Parasitic Polyporaceae p. 23-29
Clarence D. Learn

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The Underground Organs of a Few Weeds p. 31-40
L. H. Pammel and Estelle D. Fogel

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The Flora of Iowa Rock p. 99-101
R. B. Wylie

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The Okoboji Lakeside Laboratory p. 131-133
Thomas H. MacBride

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Some Features of Iowa Ground Waters, II p. 135-142
W. S. Hendrixson

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The Fruit of Viburnum nudum p. 145-149
Robert H. Lott and Nicholas Knight

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Carbonic Column of Rio Grande Region p. 159-163
Charles R. Keyes

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The Hysteresis Loop p. 165-166
D. W. Morehouse and Harry Ray Woodrow

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The Googler Primary Battery p. 167-179
Harry Ray Woodrow

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Evaporation from Tree Water Surfaces p. 185-188
Arthur G. Smith

Back Matter