Proceedings of the Iowa Academy of Science | Vol 29 | No. 1
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Volume 29, Annual Issue (1922)

Front Matter

General Interest Articles

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In Memoriam: Fred C. Werkenthin; Chalmers Colin Norwood p. 32-38
John N. Martin and Ben Hur Wilson

Research

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The New Albin Inscribed Tablet p. 49-52
Ellison Orr

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Some Black River Brachiopods from the Mississippi Valley p. 67-83
Carroll Lane Fenton and Mildred Adams Fenton

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Pyrite in Coal p. 107-109
J. M. Lindly

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Winfield's Deep Well p. 110-112
J. M. Lindly

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The Structure of the Fort Dodge Beds p. 113-120
James H. Lees

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The Status of Sedimentation in Iowa p. 127-127
A. C. Trowbridge

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An Iowa Cambrian Eurypterid p. 127-128
O. T. Walter

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Origin of Limestone Conglomerates p. 128-128
Louise Fillman

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Classification of Lenses p. 128-128
Louise Fillman

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The Rockford Geodes p. 128-129
S. L. Galpin

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Solubility and Polarity p. 135-139
Wm. Kunerth

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Nodal Distances in Acoustics p. 149-149
G. W. Stewart

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Iowa Microlepidoptera p. 157-161
A. W. Lindsey

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A Study of the White Marked Tussock Moth p. 165-167
Susannah Poulter

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Behavior of Trapped and Banded Birds p. 225-228
Dayton Stoner

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Sociology as a Science p. 230-230
Hornell Hart

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Submarginal Venation of Foliage Leaves p. 233-237
Robert B. Wylie

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Some Wound Responses of Foliage Leaves p. 238-244
Robert B. Wylie

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Germination Studies of Some Shrubs and Trees p. 257-266
L. H. Pammel and C. M. King

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The Effect of Weeds upon Crop Production p. 271-279
A. L. Bakke and L. H. Pammel

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Description and Key of the Genus Cucurbita p. 281-290
Fred C. Werkenthin

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The Founders of the Art of Plant Breeding p. 291-310
Fred C. Werkenthin

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Parry's Catalog of Iowa Plants of 1848 p. 339-344
Winifred Ellsworth

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Electrometric Titration of Sulfurous Acid with Permanganate p. 361-364
W. S. Hendrixson and L. M. Verbeck

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The Electrometric Standardizing of Titanous Solutions p. 365-369
W. S. Hendrixson and L. M. Verbeck

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Studies of Yeast V - Is Bios a Single Substance p. 370-370
Ellis I. Fulmer and V. E. Nelson

Back Matter

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Index p. 373-379

Editors

Editor
James H. Lees
Chairmen of Sections
R. B. Wylie, Botany
P. A. Bond, Chemistry
A. C. Trowbridge, Geology
W. J. Rusk, Mathematics
L. P. Sieg, Physics
H. M. Kelly, Zoology