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Volume 47, Annual Issue (1940)

Front Matter

General Interest Articles

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In Memoriam: Robert Irwin Cratty; John James Bushnell; Edward Jacob Petry; Winifred Gilbert; Ross W. Harris; Edward K. Putnam; Mary Louise Sawyer p. 31-46
Ada Hayden, T. C. Stephens, Mrs. Edward J. Petry, Roy L. Abbott, William H. Pfeffer, U. A. Hauber, and H. S. Conrad

Research

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The Organization of an Academy p. 57-63
Joseph C, Gilman

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The Rose Crimson Rambler and Its Progenies p. 65-74
Clark D. Paris and T. J. Maney

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Thirty Iowa Liverworts p. 97-99
Henry S. Conard

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A Taxonomic Study of the Genus Galium in Iowa p. 101-113
Philip Jordon Leyendecker Jr.

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Aphanorhegma Patens in Iowa p. 115-122
Roberta O'Harra

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Vitamins in Plants p. 123-126
Norman Ashwell Clark

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Plants of Mahaska County, Iowa p. 135-154
Daniel W. Augustine

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A Chimeric Tulip p. 155-155
Karl A. Stiles

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A "Twin-Embryo" Abnormality in Maize p. 155-156
John E. Sass and George F. Sprague

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The Solubility of Anhydrous Magnesium Perchlorate in Diethyl Ether p. 159-163
H. H. Rowley and Frank J. Seiler

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The Semi-Micro Adaption of the Iowa System of Qualitative Analysis p. 171-176
Lothrop Smith and Reuben E. Peterson

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Evaluation of Quantitative Experiments p. 181-183
Melvin Mueller and R. W. Getchell

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Semi-Micro Analysis of Tungsten p. 185-188
Jack Hinman and W. C. Oelke

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The Diffusion Coefficient of Cupric Sulfate at 25° p. 189-189
W. G. Eversole and J. D. Peterson

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The Equilibrium between Gelatin and Water Vapor at 25° C p. 189-189
W. G. Eversole and Fred Fordemwalt

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The Effect of Gelatin on the Solubility of Hydrogen at 25° C p. 190-190
W. G. Eversole and Allen L. Hanson

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Preparation of Tyrosine from Steffen's Waste p. 193-195
Edward Bartow and Harland L. Wetzstein

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The Production of Chloropicrin as Needed from Dry Mixtures of Picric Acid and Bleaching Powder p. 197-199
O. R. Sweeney, L. K. Arnold, R. K. Dix, and W. R. Stelzer Jr.

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Cyanogen Chloride with Organomagnesium Compounds p. 201-205
George H. Coleman and Robert W. Leeper

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Estimation of the Composition of Three Component Liquid Mixtures p. 207-211
S. G. Measamer and O. R. Sweeney

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Ammonia and Organic Nitrogen Determinations in Stream Pollutions Studies p. 213-220
Jack J. Hinman Jr., W. Keith Weeber, and R. Rupert Kountz

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The Removal of Flourides from Water by Ionic Exchange p. 221-223
R. E. Benson, D. L. Porth, and O.R. Sweeney

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Plastics from Soybean Meal and Furfural p. 231-234
L. K. Arnold and A. D. Quackenbush Jr.

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Oxidation of 4-Acyloxy Derivatives of Cinnamic Acid p. 249-255
Victor S. Webster and L. Chas. Raiford

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Studies on Alcohol Gelation of Serum p. 257-260
T. U. Marron

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Chemical Evidences of Intoxication p. 261-261
R. W. Getchell

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Dyes Containing Long-Chained Aliphatic Radicals p. 262-262
Fred W. Hoyt and H. Gilman

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Direct Syntheses of Amides From Long-Chained Aliphatic Amines p. 263-264
Byron A. Hunter, William I. Harber, and H. Gilman

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Pyrolidines from Primary Amines p. 264-264
George H. Coleman, Chris C. Schulze, and Harold A. Hoppens

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Iodination of Anisole p. 265-266
Ralph Holch and J.B. Culbertson

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Biochemical Recovery from Anoxia p. 266-267
Ferrin B. Moreland

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Oil Discovery Excitement in Iowa p. 267-267
Charles Keyes

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Permian Ammonoids from Southernmost Mexico p. 268-268
A. K. Miller and W. M. Furnish

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Permian Ammonoids from Greenland p. 269-269
A. K. Miller and W. M. Furnish

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Devonic Chronology in Iowa p. 271-271
Charles Keyes

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Glacial Marks p. 271-272
Arthur Goshorn

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A Note on a Bolzano Function p. 273-276
Marian E. Daniells

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Exponential Operators p. 277-281
Fred Robertson

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Studies in the Properties of Suspensoids p. 283-283
Melvin D. Clark and Barbara J. Selzer

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Distribution in Angle of Alpha Particles from Li7 + H1 p. 286-286
V. J. Young, G. J. Plain, W. B. McLean, and A. Ellett

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The Resonance in the B-P-a Reaction p. 286-287
W. B. McLean, V. J. Young, W. L. Whitson, G. J. Plain, and A. Ellett

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Distribution on Angle of Alpha Particles from F19 + H1 p. 287-287
A. Ellett, W. B. McLean, V. J. Young, and G. J. Plain

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Preliminary Evaluation of a Test for Biological Background p. 301-302
Richard Schweet and A. R. Lauer

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A Study of Compensation p. 302-303
Miriam G. Zugmeier and A. R. Lauer

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A New Test of Imagination p. 306-306
Martin F. Fritz

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A Preliminary List of the Crane Flies (Diptera: Tipulidae) of Iowa p. 329-332
Orville Halvorson and H. E. Jaques

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Studies of Eastern Iowa Spiders p. 333-342
Karl A. Stiles and Virginia G. Stevens

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Winter Birds of Northeastern Iowa p. 371-385
Fred J. Pierce

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Some Abnormalities of a Pair of Siamese Twin Lambs p. 401-404
Carroll Padley and James Shipley

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Objective Studies of Electrification in Mirotechnique p. 416-416
Karl A. Stiles and Douglas W. Eastwood

 

Heredity and the Etiology of Tuberculosis p. 416-417
Karl A. Stiles and Thomas N. Stewart

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Effects of Ultracentrifuging Oxytricha p. 417-417
Harold W. Kirshenblit

Back Matter

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Index p. 419-428