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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