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Volume 23, Annual Issue (1916)

Front Matter

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Title Page p. 1-1

General Interest Articles

Research

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Pure Sodium Chloride p. 25-30
Nicholas Knight

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Some Auxoamylases p. 37-39
Elbert W. Rockwood

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An Old Roman Coin in Dakota p. 73-74
David H. Boot

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Controlling Fault Systems in Iowa p. 103-112
Charles Keyes

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Bibliography of the Loess p. 159-162
E. J. Cable

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The Lithogenesis of the Sediments p. 163-165
Francis M. Van Tuyl

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The Pleistocene of Capitol Hill p. 167-172
James H. Lees

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The Tungsten X-Ray Spectrum p. 191-193
Elmer Dershem

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A New Tonoscope p. 204-207
L. E. Dodd

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Successful "Mink Farming" in Iowa p. 285-290
B. H. Bailey

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A Method of Preparing Studies of Trichinella spiralis Owen p. 299-301
T. T. Job and Dayton Stoner

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How a Tree Grows p. 315-316
Fred Berninghausen

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A Handy Device for Staining Slides p. 395-396
E. Laurence Palmer

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A Forest Census in Lyon County, Iowa p. 397-409
David H. Boot

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Scleroderma vulgare and Its Iowa Allies p. 411-414
Guy West Wilson

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Pioneer Plants on a New Levee - II p. 423-426
Frank E. A. Thone

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Notes on the Flora of Sitka, Alaska p. 427-482
Jacob Peter Anderson

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Notes on the Weeds of California p. 489-493
L. H. Pammel

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The White Waterlily of Iowa p. 621-623
Henry S. Conard