Proceedings of the Iowa Academy of Science | Vol 34 | No. 1
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Volume 34, Annual Issue (1927)

Front Matter

General Interest Articles

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In Memoriam: Charles Nutting; LeRoy Titus Weeks; Edna M. Carter p. 39-49
L. H. Pammel and Guy West Wilson

Research

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Some Visual Puns p. 304-304
Christian A. Ruckmick

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Occurrence of the Various Groups of Legume Bacteria in Iowa Soils p. 53-57
Lewis W. Erdman and Rudger H. Walker

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Measurement of the Quality of Water p. 69-76
Jack J. Hinman Jr.

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Cedar River at Cedar Rapids, Iowa p. 77-83
C. O. Bates and H. R. Hendricks

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Microbiological Death Rates p. 85-86
C. H. Werkman

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Bacterial Blackening of Canned Vegetables p. 92-93
C. H. Werkman and Helen Weaver

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Some Observations on the Germicidal Efficiencies of Alkalies p. 93-93
Max Levine, J. H. Buchanan, Grace Lease, and E. E. Peterson

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The Synthesis of Vitamins by Microorganisms p. 93-94
Gertrude Sunderlin and C. H. Werkman

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Observations of Plant Diseases in Iowa from 1924-1926 p. 95-107
Joseph C. Gilman and D. R. Porter

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A Brief Summary of Work on Iowa Algae p. 111-113
G. W. Prescott

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Notes on Iowa Fungi - 1925 p. 139-141
G. W. Martin

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Notes on Iowa Fungi - 1926 p. 145-147
G. W. Martin

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The Physiographic Ecology of a Wisconsin Drift Lake p. 165-190
Lois A. Catlin and Ada Hayden

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Manganese in Iowa City Waters p. 191-195
Edward Bartow and W. T. Bailey

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A Derivation of the Solubility Product Law p. 213-224
Warren C. Vosburgh

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The Rate of Evaporation through Surface Films p. 214-215
Raymond Bartlett and Thos. C. Poulter

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The Commercial Preparation of Oxygen from Lime and Chlorine p. 215-215
O. R. Sweeney and A. W. Ralston

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Heat of Adsorption on Charcoal of Certain Organic Vapors p. 216-216
Lloyd McKinley and J. N. Pearce

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Solubility of Copper in Milk p. 216-217
E. I. Soloman and G. N. Quam

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The Adsorption of Hydrogen, Ethylene and Ethane by Tin Oxide p. 217-217
Sylvia M. Goergen and J. N. Pearce

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New Halogenated Derivatives of Vanillin p. 219-220
L. Chas. Raiford and W. C. Stoesser

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Effect of Substituents in the Formation and Reactions of Certain Ethers p. 220-221
L. Chas. Raiford and Garrett Thiessen

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Organo-Lead Compounds in the Treatment of Cancer p. 221-221
Henry Gilman and Jack Robinson

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Some Abnormal Reactions of Organomagnesium Halides p. 221-222
Henry Gilman, J. E. Kirby, R. E. Fothergill, and S. A. Harris

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Diphenylketene with Nitrogen Trichloride p. 223-223
G. H. Coleman and A. W. Campbell

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Nitrogen Trichloride with Benzalacetophenone p. 223-223
G. H. Coleman and David Craig

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Monochloroamine with Grignard Reagents p. 223-224
G. H. Coleman and C. R. Houser

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An Extinct Glacial Pond near Cedar Rapids, Linn County, Iowa p. 239-239
G. S. Dille and C. W. Couser

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Davenport's Deep Well p. 247-247
J. M. Lindly

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Some Iowa Sandstone p. 247-248
Robert Hendricks and Nicholas Knight

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Test of a U-Tube Capillary Viscometer p. 263-265
LeRoy D. Weld

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A Study of Physics Teaching in Iowa High Schools p. 267-269
Alice Seeds, Rex Hancox, and John W. Chittum

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The Dark Ring Nebula in Cygnus p. 273-275
D. W. Morehouse

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The Photographic Action of Irradiated Cod-Liver Oil p. 275-275
Jay W. Woodrow and G. M. Wissink

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Departure from Hooke's Law in the Torsion of Rods p. 275-276
George Singer and Edwin Steele

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Ball and Jet in a Vacuum p. 277-277
L. B. Spinney

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Polarization of λ2537 of Mercury p. 283-284
Harry F. Olson

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Pitch Perception in Voice Patterns p. 302-302
Milton F. Metfessel

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A Study of the Unsuccessful College Student p. 306-308
E. O. Finkenbinder

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The Organs of the Parietal Fossa in Elasmobranchs p. 315-317
R. E. Smiley, W. R. Ingram, and E. Blagg

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Sulphate Retention following Bilateral Adrenal Extirpation p. 319-319
W. W. Swingle and W. F. Wenner

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Some Protozoa Found in the Faeces of Cattle p. 331-333
Elery R. Becker and W. W. Frye

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Gastric Motility in Vitamin Deficiency p. 337-337
Erma Anita Smith

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Compilation and Revision of the Fish Records Published for Iowa p. 339-366
George E. Potter and David T. Jones

Back Matter

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Index p. 375-383

Editors

Editor
G. H. Coleman
Chairmen of Sections
J. J. Hinman Jr., Bacteriology
Guy West Wilson, Botany
Jacob Cornog, Chemistry
A. C. Tester, Geology
J. V. McKelvey, Mathematics
M. E. Graber, Physics
C. A. Ruckmick, Psychology
L. S. Ross, Zoology