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Volume 62, Annual Issue (1955)

Front Matter

General Interest Articles

Research

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A Note on the Origin of "Blue Rain" p. 92-93
James M. Vinje and Mary M. Vinje

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Notes on Iowa Rusts p. 94-97
John W. Baxter

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Photoperiodism in Oats p. 125-130
S. C. Wiggans and K. J. Frey

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Distribution of Pteridophytes in Iowa p. 139-141
Tom S. Cooperrider

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The Flora of Johnson County, Iowa p. 155-196
Robert F. Thorne

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The Genus Asclepias in Iowa p. 211-215
Dan Nicolson and Norman H. Russell

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A Revision of the Gasteromycetes of Iowa p. 216-219
Jasper H. B. Garner

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Reactivity of the Halogen in the Isomeric 4- and 4'-Chloroazoxybenzenes p. 264-267
John J. Courtney, Lothar E. Geipel, and R. L. Shriner

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Studies on the Hydrolysis of Acetyl-1-C14-Salicylic Acid p. 268-272
J. I. Routh, R. W. Knouse, and W. D. Paul

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Fine Sands in East-Central Iowa p. 298-317
A. E. Wickstrom, K. A. Riggs Jr., and D. T. Davidson

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Coal Spoil-Bank Materials as a Medium for Plant Growth p. 329-344
Dean W. Einspahr, A. L. McComb, F. F. Riecken, and W. D. Shrader

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A Drumlinoid Hill, Story County, Iowa p. 361-365
L. A. Thomas, K. M. Hussey, and C. J. Roy

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A New Outcrop of the Rockville Conglomerate p. 366-372
Sherwood D. Tuttle and Richard C. Northup

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An Electronic Analog Computer for the General Physics Laboratory p. 393-398
H. H. Helmick and P. S. Helmick

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The Relationship Between ''Achievement Imagery" and Stuttering Behavior in College Males p. 399-404
Leonard D. Goodstein, John G. Martire, and Charles D. Spielberger

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The Relationship Between Manifest Anxiety and Test Anxiety p. 405-410
William H. Lyle and Charles D. Smock

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The Generality of Level of Aspiration in Three Areas of Endeavor p. 415-420
Mary Catherine Hampton and Charles F. Haner

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A Re-Evaluation of the Auditory "Dead Time Constant" p. 433-437
Charles D. Parker and Earl D. Schubert

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Evaluation of Driver Education p. 479-484
Elmer B. Siebrecht

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The Influence of Growth Rate Upon Brain development in Rana Pipiens Tadpoles. p. 189-492
Jerry J. Kollros and Stephanie Henoch Barch

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Evaluation of Techniques in Estimating a Mearns Cottontail Population p. 498-501
Charles W. Crunden and George O. Hendrickson

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Fishes of Little Wall Lake, Iowa Prior to Dredging p. 555-566
Kenneth D. Carlander and George Sprugel Jr.

Back Matter