Proceedings of the Iowa Academy of Science | Vol 32 | No. 1
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Volume 32, Annual Issue (1925)

Front Matter

General Interest Articles

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In Memoriam: Susan Grace Jewell; William Paul Yancy; Rollo Harrison Moore p. 36-43
Fern M. Williams, U. A. Hauber, and H. S. Longley

Research

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Yeasts of Carbonated Beverages p. 95-95
W. R. Turner

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The Development of Metallic Flavor in Buttermilk p. 55-58
M. P. Baker and B. W. Hammer

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Hydrogen Sulphide Production by Bacteria p. 63-70
Frederick W. Mulsow and Frederick S. Paine

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Bacterial Activities in an Orchard Soil p. 77-80
Rudger H. Walker

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Do We Have "Niter Spots" Forming in Iowa? p. 81-84
Paul Emerson and Don S. Gray

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Our Native Plants p. 115-121
L. H. Pammel

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Germination of Some Pines and Other Trees p. 125-132
L. H. Pammel and C. M. King

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The Formation of Root Hairs in Water p. 157-165
Clifford H. Farr

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An Abortive Anther of Lilium formosum p. 167-170
Charles A. Hoffman

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Chromosome Studies of Zea mays L. p. 171-177
R. G. Reeves

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A Tree Census of Mt. Pleasant, Iowa p. 201-203
H. E. Jaques

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Some Amanitas from Eastern Iowa p. 205-217
G. W. Martin

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Notes on Iowa Fungi - 1924 p. 219-223
G. W. Martin

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Some Wound Responses of Citrus Leaves p. 265-265
Robert B. Wylie

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Some Noteworthy Iowa Fungi of 1925 p. 265-265
Guy West Wilson

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Microsporogensis in Cucurbita maxima p. 265-266
Edward F. Castetter

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Culture Studies of Psilocybe coprophila p. 266-266
Katherine Gilmore

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Polariscopy of Molybdatomalates p. 267-298
Launcelot W. Andrews

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The Uranato-Malate Complex p. 299-320
Launcelot W. Andrews

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Cod Liver Oil as a Source of Vitamin A p. 321-322
Georgian Adams, L. T. Anderegg, and V. E. Nelson

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Some Dolomites p. 322-322
Nicholas Knight

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Microstructure of Plant Films p. 323-323
H. L. Maxwell

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Condensations with Alkylene Bromides p. 323-323
H. F. Lewis and Charles Fordyce

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Bromination of Methyl-4-Acetylaminophenyl Ketone p. 324-324
L. Chas. Raiford and H. L. Davis

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Conductance in Liquid Hydrogen Sulfide Solutions p. 324-325
G. N. Quam and J. A. Wilkinson

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Vanadium Oxytrichloride as a Solvent p. 325-325
F. E. Brown and J. E. Snyder

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The Reaction of Nitrogen Trichloride with Various Types of Olefine Hydrocarbons p. 326-326
G. H. Coleman, A. W. Campbell, and G. M. Mullins

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Decomposition of Hydrogen Bromide by Silent Electric Discharge p. 326-327
J. J. Canfield and Anson Hayes

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The Preparation of Pure Octane p. 327-328
H. F. Lewis and G. Roert Yohe

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The Preparation of Pure Di-Isobutyl p. 328-328
H. F. Lewis and J. Wesley Fleming

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Stone Axes from Adel p. 331-338
James H. Lees

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The Indians of the Fort Apache Region p. 339-341
Albert B. Reagan

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Deep Well at Morning Sun p. 343-344
J. M. Lindly

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The Occurrence of Caliche in Oklahoma p. 357-357
John T. Lonsdale

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Molding Sand in Eastern Iowa p. 357-358
John E. Smith

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Glacial Geology of Story County p. 358-359
John E. Smith

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Physical Features of the Hawaiian Islands p. 359-360
Chester K. Wentworth

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Sedimentary Processes on Volcanic Islands p. 360-361
Chester K. Wentworth

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Stratigraphic Value of Volcanic Ash p. 362-362
Charles Keyes

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Two Theorems on Annuities p. 363-365
John F. Reilly

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Economical Filtration in Deep X-ray Therapy p. 371-375
Scott W. Smith Jr.

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The Diffraction of X-Rays by Liquids p. 378-378
E. Horbart Collins

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A Study in Examination Methods p. 380-380
C. J. Lapp

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A New Electrostatic Friction Machine p. 384-384
Jay W. Woodrow

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An Objective Study of the Vocal Art p. 395-395
Milton Metfessel

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Temporal Precision in Motor Rhythm p. 395-396
Robert Holmes Seashore

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Iowa Placement Examinations p. 396-396
George D. Stoddard

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The Measurement of Talent in Graphic Art p. 397-397
Norman C. Meier

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Some Observations on the Habits of Leeches p. 415-417
Catharine Mullin

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The Nutritional Effects of Feeding Potassium Salt to Pregnant Ewes p. 440-441
John M. Evvard, C. C. Culbertson, A. R. Lamb, and W. E. Hammond

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Protein Requirements of Lactating Sows with Litters p. 441-442
Q. W. Wallace and John M. Evvard

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Vitamin A and Longevity p. 442-442
J. H. Hansbrough, V. E. Nelson, and E. I. Fulmer

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The Protein Requirements of Practically Mature Fattening Cattle p. 442-443
C. C. Culbertson and John M. Evvard

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The Coral Reefs of Fiji p. 444-444
C. C. Nutting

Back Matter

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Index p. 447-454

Editors

Editor
P. S. Helmick
Chairmen of Sections
Paul Emerson, Bacteriology
H. E. Jaques, Botany
H. F. Lewis, Chemistry
W. F. V.Leicht, Geology
E. R. Smith, Mathematics
P. S. Helmick, Physics
R. H. Sylvester, Psychology
Dayton Stoner, Zoology