Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 38 (1931) > Annual Issue
Volume 38, Annual Issue (1931)
Front Matter
Table of Contents p. 17-20
General Interest Articles
In Memoriam: Bird Thomas Baldwin; J. M. Fulton; John Littleton Tilton; Flora May Tuttle; M. F. Arey; Abram Owen Thomas; Joseph A. Treganza; Louis H. Pammel p. 38-68
George D. Stoddard, Charles Keyes, Henry S. Conrad, E. J. Cable, James H. Lees, and B. Shimek
Research
Effects of Soil Aeration on Plant Growth and Root Development p. 71-72
W. F. Loehwing
The Micro-Climate of Zea mays in Central Iowa p. 73-83
J. M. Aikman
Fertility Variations in Tetraploid Tomatoes with Different Genetic Origins p. 85-87
E. W. Lindstrom
Some Recent Contributions to Our Understanding of Corn Diseases p. 89-101
I. E. Melhus
Some Misunderstood Slime-Mold Species p. 103-114
Ella Baskerville
A Comparative Morphological Study of Certain Species of the Dacryomycetaceae p. 115-125
Marian C. Fisher
Notes on Iowa Mosses. IV p. 129-132
Lucy M. Cavanagh
Linear Order of Four Genes on the First Chromosome of the Tomato p. 133-134
E. W. Lindstrom
Flowering Plants of Black Hawk County, Iowa p. 135-149
Myrle Marie Juliana Burk
Photosynthesis in Corn p. 150-150
W. E. Loomis and K. H. Burnett
Water Softening by Base Exchange p. 151-155
Edward Bartow
A Quantitative Spectrographic Study of Magnesium Contamination in Calcium Oxalate Precipitates p. 157-158
D. C. McCann, Louis Waldbauer, and Stephen Popoff
Quantitative Analysis of Lettuce Ash p. 159-161
Louise Wendt and John A. Wilkinson
The Interfacial Tensions of Mineral Oil against Various Aqueous Solutions at 40°C p. 163-163
W. G. Eversole and Dallas S. Dedrick
The Solubility of Certain Substituted Benzoic Acids in Typical Salt Solutions at 25° p. 163-164
J. N. Pearce and J. W. Newsome
The Vapor Pressures of Aqueous Solutions of Lithium Nitrate at 25° p. 164-164
J. N. Pearce and A. F. Nelson
Some Physical Properties of Aqueous Salt Solutions p. 164-165
J. N. Pearce and M. A. Hooper
The Oxidation of Nitrogenous Material in Contaminated River Water p. 165-165
Ben H. Peterson and John Hann
The Adsorption of Negative Ions by Colloidal Suspension of Aluminum Hydroxide p. 165-166
Ben H. Peterson and Floyd H. Trimble
Platinum-Cadmium Alloys p. 166-166
K. W. Ray
Effects of Various Amounts of Calcium Carbonate on the Degree of Saturation of Some Iowa Soils with Bases p. 166-167
R. H. Walker and P. E. Brown
Some Rearrangement Reactions of Organosodium and Organolithium Compounds p. 167-167
Henry Gilman and Fritz W. Breuer
Organomagnesium Compounds Containing Solubilizing Amino Groups p. 167-168
Henry Gilman, Stanton A. Harris, and Chuan Liu
Nitrogen Trichloride and Grignard Reagents p. 168-168
George H. Coleman and Marion A. Buchanan
Organic Matter and the Life of the Green Plant p. 168-169
Norman Ashwell Clark
The Production of Kynurenic Acid from Tryptophane Derivatives p. 169-169
Clarence P. Berg
The Velocites of Hydrolysis of the Three Monomethoxy-Diphenyl Ketimines p. 169-170
James B. Culbertson and Amel L. Bresson
The Velocites of Hydrolysis of Mono- and Polyhydroxy-Diphenyl Ketimines p. 170-170
James B. Culbertson and James L. Nauman
Reaction of Some Carbonyl and Thiocarbonyl Compounds with Phenylhydrazine p. 171-171
L. Chas. Raiford and W. T. Daddow
Further Observations on the Behavior of Vanillin Substitution Products: (a) The Perkin Reaction; (b) The Preparation of Substituted Vanillic Acids p. 171-171
L. Chas. Raiford, Victor S. Webster, and Dwight J.. Potter
The Composition of the Unsaturated Fatty Acids of Animal Tissues p. 171-172
H. G. Smith
The Micro Determination of Citric Acid by the Thunberg Methylene Blue Method p. 172-172
Adrian C. Kuyper
The Antioxidant of Lettuce p. 172-173
H. S. Olcovich and H. A. Mattill
The Unsoundness of Certain Types of Rocks p. 175-181
Mark Morris
The Ancient House People of the Brush Creek Region, in Northeastern Utah p. 183-184
Albert B. Reagan
The Rock Shelters of Allamakee County, Iowa, a Preliminary Survey p. 185-194
Ellison Orr
Notes on Some Paleozoic Echinoderms p. 195-200
A. O. Thomas
Nomenclature and Classification of Geologic Formations with Special Reference to the Cretaceous of Iowa p. 203-203
A. C. Tester
Contemporaneous Deformation in the Cedar Valley Limestone p. 203-203
A. C. Tester
The Stratigraphic Relations of the Greenhorn and Niobrara Formations of Western Iowa and Adjacent Areas p. 204-204
N. C. Georgesen
Suggested Revisions of Pleistocene Classification p. 204-204
George F. Kay
Minimum Durations of the Glacial and Interglacial Ages in the Pleistocene of Iowa p. 204-205
George F. Kay
Origin of the Pebble Band on Iowan Till p. 205-206
George F. Kay
The Iowan Gravels in Northeastern Iowa p. 206-206
Paul T. Miller
Trenton Limestone in Iowa p. 206-207
Charles Keyes
Larger Prospect of our Loess Mantle p. 207-207
Charles Keyes
Geosynclinal Concept p. 207-208
Charles Keyes
Progress in the Analysis of Cosmic-Ray Observations (II) p. 209-212
Le Roy D. Weld
A Study of the Mathematical Disabilities of Students Pursuing First Year College Physics p. 213-213
W. R. Lueck
Resistivity of Zinc Crystals p. 213-214
E. P. T. Tyndall and A. G. Hoyem
On Atmospheric Electricity p. 214-214
C. S. Dorchester and L. W. Butler
Magnetic Properties of Thin Nickel Films p. 214-214
H. E. Malmstrom
Secondary Emission of Electrons from Metals p. 215-215
Paul L. Copeland
A Concave Ultrasonic Diffraction Grating p. 215-215
George E. Thompson
Effect of Air Pressure on the Vibration of Quartz Crystals p. 215-215
George E. Thompson
The Velocity of Ultra Waves in Ether Vapor p. 216-216
George E. Thompson
Effect of Piezo Electric Oscillations on X-Ray Patterns of Quartz p. 216-216
P. H. Carr and G. W. Fox
Evidence of Energy Exchanges Accompanying Scattering of Atoms by Crystals p. 216-217
H. A. Zahl and A. Ellett
Lens Effect of Pressure Windows p. 217-217
Carl Benz and Thos. C. Poulter
Measurement of Mean Life of Cadmium 2^3p1 by Thermal Motion of Excited Atoms during Life Time p. 217-218
H. D. Koenig
The Spectrum of Mercury Excited by Canal-Ray Impact p. 218-218
Carl Frische
Ultra Violet Absorption Spectra of Carotene and Vitamin A p. 218-218
Jay W. Woodrow and J. B. Philipson
Phosphorescence in a Photoelectric Cell of Fused Quartz p. 219-219
George V. Emery
The Color and Intensity of the Chemiluminescence of Solid Sodium p. 219-219
R. M. Bowie
The Chemiluminescence of Solid Sodium p. 219-220
R. M. Bowie
The Effect of Immediate Knowledge of Results on Motivation p. 221-222
B. F. Zuehl
Influences on Learning of Tests Composed of True and False Statements and Direct Questions p. 223-224
E. O. Finkenbinder
The Use of the Individual Parts of the Aptitude Test for Predicting Success of Students p. 225-227
Gertrude M. Cox
The Correlation of Implicit and Explicit Behavior and the Presence of Sex Differences in Learning Responses p. 227-228
Alvah R. Lauer
Competition for Marks p. 228-228
John W. Charles
Influence of Reducing Credit for Absence of Regularity of Class Attendance in College p. 228-228
E. O. Finkenbinder
Some Recent Improvements in the Galvanic Techniques p. 229-299
Christian A. Ruckmick
Can the Ayres Spelling Scale be Relied on for Measuring the Individual Class Achievement? p. 229-230
E. C. Denny
An Investigation of the Basic Factors of Aesthetic Value in Costume Design p. 230-231
Wilhelmina E. Jacobson
Analysis of Intensity in Piano Playing p. 231-231
D. A. Rothschild
Remedial Measures in Pitch Intonation p. 231-232
Lawrence E. Eberly
Remedial Measures in Reading at the College Level p. 232-233
Francis P. Robinson
The Hearing of the Vocal Vibrato p. 233-233
Harold Seashore
Relationship of Chance, or Consistency, to Rate and Extent of the Vibrato p. 233-234
Melvin S. Hattwick
The Vibrato as Produced on String Instruments p. 233-234
Scott N. Reger
Transient Aphasia as a Common Element in Speech and Reading Defects p. 234-234
Geo. A. Kelly
A Criticism of the Law of Effect p. 235-235
Clellen L. Morgan
Basic Differences in Pitch, Intensity, and Time Between Good and Poor Voices During Speech p. 236-236
Elwood Murray and Joseph Tiffin
A New Scientific Musical Staff p. 236-237
Carl E. Seashore
An Artistic "Pianogram" p. 237-237
Laila Skinner
An Appraisal of Psycho-Physical Capacities and Abilities Significant for Success in Art p. 237-237
Hildegard Dreps
A Study of Fifty Home Libraries with Special Reference to Their Function in Child Development p. 238-238
Gertrude Hill Nystrom
Personal Attitudes of Delinquent Boys in Iowa p. 238-238
J. L. Reusser
An Analysis of Fifty Delinquent Boys' Feelings of Inferiority and Superiority p. 238-239
Edwin C. Johnson
Two New Infusoria (Protozoa) from Iowa p. 241-243
Robert L. King
Bilateral Ovaries in Raptorial Birds, with Notes on Kidney Structure p. 245-248
F. L. Fitzpatrick
Studies in the Selection for Susceptibility and Resistance to Anaphylactic Shock in Guinea Pigs p. 249-253
E. W. Shrigley
Instinct or Intelligence in the Great Golden Digger? p. 255-258
Roy L. Abbott
A Study of the Tenebrionidae of Southeastern Iowa p. 259-265
Owen J. Smith
Collecting Contests as a Means of Increasing Student Interest in Biological Subjects p. 267-271
H. E. Jaques
A Few Records of Birds Infrequently Seen in Southeastern Iowa p. 273-276
H. E. Jaques and Pete Parks
Late Fall and Winter Bird Records, 1926 to 1930, in the Upper Missouri Valley p. 277-285
Wm. Youngworth
Exchange of Oestrous and Corpus Luteum Hormones in Parabiotic Female Rats p. 287-287
Robert T. Hill
Retrogressive Changes in the Ovaries of Rana clamitans Tadpoles following X-Ray Treatment p. 287-288
William T. Levine
Nitrate Assimilation by Soil Bacteria p. 289-291
F. B. Smith and Dorothy Schlots
Anaerobic Nitrogen Fixation in Some Iowa Soils p. 293-298
W. Hillman Willis and R. H. Walker
The Effect of Phosphorus on Nitrogen Fixation by Azotobacter p. 299-302
L. G. Thompson Jr. and F. B. Smith
Aspergillus niger as an Indicator of Available Phosphorus in the Soil p. 303-307
F. E. Schlots, F. B. Smith, and P. E. Brown
Some Effects of Nitrogenous Fertilizers in the Nitrifying Power of Carrington Loam p. 309-311
Mark H. Brown
Experiments with the Winogradsky Spontaneous Culture Test on Iowa Soils p. 313-320
Arthur W. Young and R. H. Walker
Residual Effects of Some Germicides Used in Sterilizing Legume Seeds p. 3211-325
Dean A. Anderson and R. H. Walker
Some Nitrification Studies on an Alkali Soil in Iowa p. 327-331
Sanford M. Smith and F. B. Smith
Experiments with Dry Dust Cultures for the Inoculation of Legume Seeds p. 333-333
R. H. Walker and G. B. Killinger
Comparative Growth Rates of Different Strains of Rhizobium meliloti p. 333-334
R.H. Walker and Dean A. Anderson
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