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Volume 45, Annual Issue (1938)

Front Matter

General Interest Articles

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The Address of the President: Water Problems p. 43-51
Arthur C. Trowbridge

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Science and Society (Academy Address) p. 53-62
Charles E. Friley

Research

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One Hundred Iowa Mosses p. 63-68
Henry S. Conard

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The Fir Forests of Iowa p. 69-72
Henry S. Conard

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The Oldest Iowa Tree p. 73-74
W. A. Anderson

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Fruit Hypertrophy Caused by Cuscuta p. 95-97
Henry Lee Dean

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Forest and Soil Studies in Southern Iowa p. 100-100
J. A. Larson and Richard J. Dillworth

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The Single Precipitation of Calcium Oxalate in the Presence of Magnesium p. 101-104
Richard G. Kadesch and R. W. Getchell

 

A Portable Drop-Reaction Kit
Philip W. West and Lothrop Smith

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Preparation of Acetic Esters of Some Higher Alcohols p. 123-125
John W. Swanson and James Coss

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Master Drainage During Deglaciation p. 163-164
Charles Keyes

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Stylolites in the Burlington Limestone near Kinderhook, Illinois p. 166-167
John C. Frye and Ellis H. Scobey

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Heat of Wetting of Soils p. 179-185
M. B. Russell and L. A. Richards

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The Swarm Structure of the Liquid Crystal, Para-Azoxyanisol p. 189-189
R. C. Davis and G. W. Stewart

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Purposive Teaching of High School Physics p. 199-203
Simeon M. Hickman

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Student Opinion of Examinations p. 206-207
Russell D. Miller

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Several Simple Lecture Experiments p. 207-207
John A. Eldridge

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Elasticity of Lead Crystals p. 207-207
Andrew F. Deming

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Fine Grain Photographic Development p. 208-208
George C. Higgins

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A Gas-Type X-Ray Tube p. 239-239
L. E. Pinney

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Parsons College Physics Museum p. 239-239
E. Hobart Collins

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An Experiment in Survey Science p. 219-224
R. W. Getchell

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A New Attitude Scale on Religion and Ethics p. 277-277
Leigh C. Douglass and Fred Eisen

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Predicting Success in Teaching p. 278-278
Wm. H. Batson

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A Preliminary List of the Dolichopidae of Iowa p. 281-282
Bernard G. Berger and H. E. Jaques

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Progress Report on a Survey of the Spiders of Iowa p. 285-287
Karl A. Stiles and Beulah Detwiler

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Hereditary Fusion of the Proximal Phalandeal Joints p. 309-309
Karl A. Stiles and Robert A. Weber

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The Cause of the Red-Green Color Change in Euglena Rubra p. 309-310
Leland P. Johnson and Theodore L. Jahn

Back Matter

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Index p. 311-318