Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 49 (1942) > Annual Issue
Volume 49, Annual Issue (1942)
Front Matter
Table of Contents p. 17-20
General Interest Articles
In Memoriam: John Alexander McGeoch; Edgar W. Timm; Oliver W. Muelder; Maria M. Roberts p. 35-41
Carl E. Seashore, E. W. Lindstrom, Ben H. Peterson, Gertrude A. Herr, and Helen F. Smith
Research
Science in a Changing World - Paper Presented at the Fifty-Sixth Annual Meeting p. 45-49
Roy A. Nelson
New Light on Intelligence - Paper Presented at the Fifty-Sixth Annual Meeting p. 51-60
George D. Stoddard
Nutritional Factors in Plant Growth and Development - Paper Presented at the Fifty-Sixth Annual Meeting p. 61-112
W. F. Loehwing
Extra-Floral Nectaries in Bryophyllum calycinum p. 113-115
James H. Craft
The Dwarf Leaf of Cercis Canadensis p. 117-122
Robert B. Wylie
A Note on Axis Restoration in a Gymnosperm Tree p. 123-125
Robert B. Wylie
Total Length of Stem Developed from a Single Seedling of Cuscuta p. 127-128
H. L. Dean
Permanent Slides of Plant Cuticle Stained with Sudan IV and Sudan Black B p. 129-132
H. L. Dean and Edwards Sybil Jr.
Histological Responses of Stock (Matthiola incana) Seedlings Treated with B-Indolyl Acetic Acid p. 133-138
F. M. Turrell and L. C. Bauguess
A Qualitative Study of the Effect of Soft X-Rays on the Activity of B-Indolyl Acetic Acid as a Growth substance p. 139-143
F. M. Turrell and Harold Kersten
Notes on Iowa Fungi. IX. p. 145-152
G. W. Martin
Illustrations of the Fleshy Fungi of Iowa III. The Black-Spored Agarics p. 153-158
Joseph C. Gilman
Illustrations of the Fleshy Fungi of Iowa IV. Common Fleshy Ascomycetes p. 159-171
Joseph C. Gilman
Some Notes on the Fungi of Henry County p. 173-174
Marvin Tulk
The Genus Thelephora in Iowa p. 175-184
Paul L. Lentz
Typhula Juncea in Iowa p. 185-187
Mary Louise Grumbein
Slime Molds of Benzie County, Michigan p. 189-190
Ruth Gilman
The Liverworts of Iowa p. 191-195
Henry S. Conard
A Preliminary List of Bryophytes of Linn County, Iowa p. 197-204
R. V. Drexler
Notes on Iowa Flora p. 205-205
W. A. Anderson
Notes on Iowa Plants p. 207-209
George J. Goodman
The Genus Lysimachia in Iowa p. 211-212
George J. Goodman and P. J. Leyendecker
The Cut-Leaved Nightshade (Solanum triflorum Nutt.) p. 213-214
Nester L. Stiles and Arthur L. Bakke
The Effect of the Freezing Temperatures in December 1941 and January 1942 in Story, Boone, and Polk counties on the Viability of Soy Beans of the 1941 Harvest p. 215-216
John N. Martin
Diseases of Cereals and Flax in Iowa p. 217-247
I. E. Melhus, D. R. Shepherd, and Marie A. Corkle
MME. Caroline Testout: The Grand Dame of the Roses p. 249-252
Clark D. Paris and T. J. Maney
Electrodialysis of Sugar Borates p. 257-261
George H. Coleman and Aaron Miller
The Distribution of Alcohol in the Tissues of the Rat p. 263-267
V. B. Fish and V. E. Nelson
The Effect of Oral and Intraperitoneal Administration of Alcohol upon the Concentration of Alcohol in the Blood of the Rat p. 269-272
V. B. Fish and V. E. Nelson
Intoxcation Tests - A Third Year Report p. 273-274
T. U. Marron and R. W. Morrissey
Apparatus for Distilling Alcohol from Biological Fluids and a Calculator for Harger Titrations p. 275-280
T. U. Marron and C. S. Banwarth
Absorption Spectra of Ketimines with Reference to Ketimine-Enamine Tautomerism p. 281-282
J. B. Culbertson
Structure of the High-Melting Dibromoveratric Acid p. 283-283
Don E. Floyd and L. Chas. Raiford
The Preparation of Colorimetric Standards p. 284-284
Ferrin B. Moreland
The Isolation of New Antioxidants from Vegetable Fats p. 284-285
Calvin Golumbic
Formation and Properties of Some Uretediones p. 285-285
Harlan B. Freyermuth and L. Chas. Raiford
The Rearrangement of Aminoethanols p. 286-286
George H. Coleman and C. S. Nicholopoulos
Trialkylgold Compounds p. 286-287
Lauren A. Woods and Henry Gilman
Preparation and Stability of Diphenyl Amine Hydronitrate p. 287-288
Robert E. Jones and J. B. Culbertson
Ring Closure of N-Methylcycloheptylamine p. 288-288
George H. Coleman and Joseph J. Carnes
Stability of Cysteine Solutions p. 288-289
Ronald E. Pyle and Joseph I. Routh
Intermediary Metabolism of Histidine p. 289-289
Robert Crookshank and Clarence P. Berg
An Apparatus for the Study of the Kinetics of Thermal Decompositions p. 291-294
R. B. Anderson, H. H. Rowley, and R. F. Makens
Raman Effect of Sodium Cyanide p. 295-301
Geo. Glockler and H. T. Baker
Systems of Chemical Compounds p. 303-306
Geo. Glockler
Representation of Equilibrium Conditions for the Carbon Monoxide - Carbon Dioxide - Steel System p. 307-321
H. A. Wilhelm and C. F. Gray
Qualitative Microanalysis of Non-Ferrous Metals p. 323-331
George W. Brown and Lothrop Smith
Vapor Pressure of Iodine Monochloride p. 333-333
Jacob Cornog and Eldon Bauer
The Diffusions Coefficient of Hemoglobin in Pure Water Solution p. 333-333
F. E. Kite, Donald A. King, and W. G. Eversole
Dissociation Pressure of Some Potassium Polyhalides p. 334-334
Jacob Cornog and Eldon Bauer
A Measurement of the Magnitude of the Electrokinetic Current in Liquid Flow through a Single Capillary p. 334-334
W. G. Eversole and W. W. Boardman
Some Insoluble Residue Correlations of Missouri and Virgil Strata in Iowa p. 335-338
E. H. Wenberg
Did Beavers Impound Waters for Ames Peat Bog? p. 351-357
Charles S. Gwynne
The Laminated Pleistocene Sediments of the Cedar Rapids Region p. 359-365
L. R. Wilson and C. G. Kos
Different Types of Disturbances Appearing on Iowa Seismological Records p. 367-373
Mrs. M. M. Seeburger
Survey Courses in Mathematics p. 375-377
O. C. Kreider
The Reciprocal Bending - Torsion Effect for Lead Single Crystals p. 379-379
Stanley Bruntjin
Adiabatic Compressibilities of Some Aqueous Solutions and Their Variation with the Indicated Liquid Structure of the Water p. 379-379
Victor B. Corey
Adiabatic Compressibility of Electrolytic Solutions and the X-Ray Diffraction Intensity Distributions p. 379-380
V. B. Corey and G. W. Stewart
A Simplified Conductivity-Radiation Experiment for the Elementary Laboratory p. 380
Lester T. Earls
Concerning Physics Aptitudes p. 380-381
C. J. Lapp
The Rating of Physics Teachers in the Pennsylvania Summer Engineering Defense Training Program p. 381-381
C. J. Lapp
Some New Light on the Old Problem of Learning in Physics p. 381
C. J. Lapp
Anode Effect in a Commercial Radio Tube p. 382-382
A. Owens
Some Effects Associated with Negative Corona Onset p. 382-382
L. E. Pinney
Thermal Expansion of Single Crystals of Zinc p. 382-382
William P. Staker
Plasticity of Zinc Single Crystals p. 382-382
E. P. T. Tyndall
Relative Intensities in the Hollow-Cathode Discharge p. 383-383
E. H. Winger
The Prediction of Scholastic Success in a College of Law p. 385-389
Michael Adams
The Relative Scholastic Accomplishment of Two Classes of College Freshman p. 391-394
Mary Ellen Appleby, Gerald Grant, and Mack T. Henderson
Ocular Photography as a Scientific Approach to the Study of Art p. 395-404
Herman F. Brandt
Reaction Time under Different Stimulus Conditions p. 405-407
Fred Kroeger and George D. Lovell
Reaction Patterns During a Performance Test p. 409-412
Fred Kroeger and Mack T. Henderson
Influence of Degree of Original Learning Upon Associative and Reproductive Inhibition p. 413-417
Franklin J. Shaw
The Prediction of Driving Ability from Laboratory Measures and Experience Indices from a Systematized Interview p. 419-423
Leonard E. Shupe and A. R. Lauer
Three Comparisons of Retroactive and Proactive Inhibition p. 425-429
Benton J. Underwood
Changes in the Attitudes of College Students in Religion and Politics p. 431-437
George R. Pullman and Earle E. Emme
Finding for a Psychology of Religion p. 439-445
Earle E. Emme and Lowell De Garmo
Speech Sound Status of Infants during the Sixteenth, Seventeenth and Eighteenth Months p. 447-451
Frances J. Anderson
Speech Sound Status of Newborn Negro and White Infants p. 447-447
Han Piao Chen
Color Experiment with Cattle p. 447-448
Earle E. Emme
The Scaling of Word Attributes p. 448-448
C. Hess Haagen
The Speech Sound Status of a Small Group of Low-Grade Feeble-Minded Children p. 449-449
Orvis C. Irwin
The Effect of Varying Illumination on Distance Perception of Objects Subtending p. 449-449
A. R. Lauer and Merwyn Winterstein
Perception of Body Tilt p. 450-450
Earl Schubert
The Use of the Wechsler-Bellvue Intelligence Test in the Study of Mental Deterioration p. 450-451
Bernard Webb
The Use of the Standard Partial Regression Coefficient in Constructing General Botany Achievement Tests p. 453-460
W. H. Bragonier
Teaching to Think in a Field Rather Than about It p. 461-465
E. W. Lindstrom
The Teaching of Botany - Appraisal and Forecast p. 467-474
W. F. Loehwing
Comparative Studies on Gonad Development in the Rat, the Pig and in Cattle p. 475-501
J. D. Thomson
Nature of Eimeria nieschulzi-Growth Promoting Potency of Feeding Stuffs 4. Riboflavin and Nicotinic Acid p. 503-506
Elery R. Becker
The Mouth Parts of the Firebrat Thermobia domestica (Packard), (Thysanura) p. 507-516
Roberta O'Harra and J. Alfred Adams
A Peculiar Staining Reaction in Euglena rubra Hardy 1911 p. 517-519
Leland P. Johnson
Inheritance of Pitted Ear through Six Generations p. 521-522
George C. Huff and Winifred Brillhart
An Anomaly in the Cat p. 523-524
Fae M. Shawhan
A Preliminary Study of the Insect Galls of Iowa p. 525-527
Gordon Carstensen and H. E. Jaques
A Preliminary List of the Cutworms Known to Occur in Iowa p. 529-532
Elizabeth Jerrell and H. E. Jaques
The Measurement of Visual Phenomena by Means of the Electroretinogram p. 533-534
Theodore Louis Jahn
An Anomalous Chick Embryo Pulsating as a Heart p. 535-537
William M. Goldsmith and Dayrle N. Crabb
Trepanation and the "Catlin Mark" p. 538-538
William Goldsmith
Vanishing Original Prairie Area in Cedar Rapids, Iowa p. 253-253
George R. Browne
A Peculiar Polytrichum p. 253-253
R. V. Drexler
The Story of Parthenium alpinum p. 253-253
George J. Goodman
Tetraploidy in Melilotus alba induced by colchicine p. 254-254
I. J. Johnson and J. E. Sass
The Variability in the Color of Red Clover Seeds, its Cause, and Relation to the Value of the Seeds p. 254-255
John N. Martin
Some Structural Features of Mycorrhizae on Coniferous Seedlings p. 255-255
Andrew L. McComb and J. E. Sass
Comparison of Floral Initiation in American-Grown and Holland-Grown Tulips p. 255-256
J. E. Sass
Charcoal-Rot of Maize, New to Iowa p. 256-256
George Semeniuk
Heritable Characters in Maize: "Accessory Blade" p. 256-256
George F. Sprague and J. E. Sass
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