Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 46 (1939) > Annual Issue
Volume 46, Annual Issue (1939)
Front Matter
Table of Contents p. 17-22
General Interest Articles
In Memoriam: John Budd Wentz; Arthur Alfred Bryan p. 41-46
H. D. Hughs, A. A. Bryan, and Frederick D. Richey
The Address of the President: The Chromosome and the Origin of Species p. 49-58
J. N. Martin
Research
The Tree Puzzle as a Teaching Device p. 353-356
J. M. Hitchings
The Philosophy of Science p. 39-69
H. T. Davis
Iowa's Contribution to American Men of Science p. 71-87
H. E. Zabel
Notes on Iowa Fungi. VIII p. 89-95
G. W. Martin
Iowa Species of Agropyron p. 97-104
D. W. Augustine
Plants New to Iowa p. 105-106
George J. Goodman
The Relation Between Chlorophyll Concentration and the Internal Surface of Mesomorphic and Xeromorphic Leaves Grown under Artificial Light p. 107-117
F. M. Turrell
Diseases of Cultivated Lupines p. 119-125
C J. Gould Jr.
Teaching Aids in Botany. I - The Placement Test p. 127-127
S. M. Dietz and C. J. Gould Jr.
Teaching Aids in Botany, II. Diagrams p. 129-140
S. M. Dietz
Notes on the Forests of Southern Iowa p. 141-147
J. A. Larsen and J. R. Dilworth
Rosa Multiflora and Its Progeny p. 149-160
Clark D. Paris and T. J. Maney
The Genus Arabis in Iowa p. 161-165
Clark D. Paris
A Preliminary List of Plants of the Sand Mounds of Muscatine and Louisa Counties, Iowa p. 167-178
Mabel Estle Brown and Robert G. Brown
A Quantitative Study of the Early Weed Stage of Secondary Plant Succession in Central Iowa p. 179-179
J. M. Aikman and Helen F. Barr
Studies in the Redistribution of Some Phytopathogenic Species of Bacillus p. 179-180
J. M. Aikman and Helen F. Barr
Histology of a Genetic Malformation in Corn p. 180-180
J. E. Sass and A. A. Bryan
Cytoplasmic Structures in the Basidium Revealed by Silver Impregnation p. 181-181
J. E. Sass
The Second Virial Coefficient as a Measure of Gas Imperfection p. 183-185
E. O. Price
The Solubility of Cadmium Iodate in Aqueous Salt Solutions at 25° C p. 187-188
W. C. Oelke and Charles Wagner
Qualitative analysis by Means of Drop-Reactions: A Systematic Study of Interference p. 189-192
Lothrop Smith and Philip W. West
Some Chemical Aspects of the Limnology of the Lakes in the Okoboji Region p. 193-193
Ben H. Peterson
The Formation of Gas Bubbles in Liquids p. 193-194
W. G. Eversole and G. H. Wagner
The Transition Temperature of Deuterates p. 194-195
O. W. Muelder
Ethyl Etherates of Zinc Bromide p. 195-195
H. H. Rowley and Florence V. Olson
Binary System with Acetamide: (1) Acetamide - Water (2) Acetamide - Naphthalene p. 195-196
Ben H. Peterson
The Solvating Power of Anhydrous Magnesium Bromide as a Possible Function of Its Preparation Temperature p. 196-197
H. H. Rowley and Jack A. Campbell
The Construction and Use of a Concave Grating Spectrograph p. 197-197
W. C. Oelke and George Montross
A Quantitative Spectrographic Study on the Effects of the Alkali Metals upon the Determination of Calcium p. 197-198
Louis Waldbauer and John A. Means
Freezing Point Curves of Iodine Monochloride Mixed with Iodine, Acetic Acid, or Carbon Tetrachloride p. 198-198
Jacob Cornog and Leonard Olson
The Solubility of Ignited Ferric and Chromic Oxides p. 198-200
Jacon Cornog and Dorothy Buck
The Effect of Egg Albumin on the Solubility of Thallous Salts at 25 C p. 200-201
W. G. Eversole and Carold F. Bjork
Further Evidence of a New Factor in the B Complex p. 203-206
W. R. Wyatt and V. E. Nelson
Some Applications of Chemistry to the Manufacture of Dairy Products p. 207-209
E. W. Bird
Aspects of the Blood Alcohol Tests to Determine Intoxication p. 211-215
F. Earl Miller and R. W. Getchell
The Use of the Spectroscope in Chemistry p. 217-217
F. H. Spedding
X-Ray Diffraction Studies on Nerve p. 217-217
R. S. Bear
Ring Compunds from Chloroamines and Amides p. 217-218
George H. Coleman
Preparation and Some Properties of Isomeric Carboaryloxyaminoanilines p. 218-219
L. Chas. Raiford and Williiam Homer Coppock
The Role of Organoaluminum Compounds in the Friedel-Crafts Reaction p. 219-220
Albert H. Haubein, Lester D. Apperson, and Henry Gilman
High Molecular Weight Fatty Acid Derivatives and the Phenomenon of Homology p. 220-220
Fred W. Hoyt, Byron A. Hunter, and Henry Gilman
Morphine Alkaloids and Synthetic Dibenzofuran Derivatives p. 220-221
Thomas H. Cook and Henry Gilman
Observations upon Bogs of Northern Iowa p. 223-224
Charles Carter
Fossil Plants of a Des Moines Sandstone Cave Deposit near Robins, Linn County, Iowa p. 225-226
L. R. Wilson and A. T. Cross
Significance of Carboniferous and Late Devonian Material within the Iowa Devonian p. 227-231
S. W. Stookey
Some Features of the Squaw Formation near Lander, Wyoming p. 233-242
Benjamin H. Burma and Irvin J. Anderson
Upper Pennsylvanian Section in Western Adams County, Iowa p. 243-246
Lyman W. Wood
Fossils of the Peorian Loess in Iowa p. 247-247
Cornelia Cameron
Petrography of Two Iowa Loess Materials p. 247-248
F. Leicester Cuthbert
Some Quartzite Pebbles p. 248-248
Charles Carter
The Geology of Greene County, Iowa p. 248-249
Wilfred B. Tapper
The Pleistocene Geology of Audubon Country, Iowa p. 249-249
W. Herbert Yoho
New Species of Carboniferous Spores from the Des Moines Coals of Iowa p. 250-250
L. R. Wilson and E. A. Coe
Unconformity at the Base of the Henrietta Group in Iowa p. 250-250
L. M. Cline
Occurrence of Certain Small Fossil Plates in the Maquoketa Shale of Iowa p. 251-251
R. C. Spivey
Permian Ammonoid Zones p. 251-251
A. K. Miller and W. M. Furnish
Characteristics of Heavy Accessory Minerals in a Pre-Cambrian Granite Gneiss p. 251-251
C. S. Gwynne
Origin of Analcite in Igneous Rocks of the Terlingua District, Texas p. 252-252
John T. Lonsdale
Origin of Pre-Cambrian Pseudo-Conglom-Erates From the Black Hills p. 252-252
J. J. Runner
Plugging Abandoned Water Wells p. 253-253
H. Garland Hershey
Some Deformations of Southwestern Iowa p. 253-254
E. H. Wenberg
Missouri Equivalent of Cedar Valley Limestone p. 254-255
Charles Keyes
Extension of Maryville Lowland into Iowa p. 255-255
Charles Keyes
Oldest Flowering Plants are From Iowa p. 255-256
Charles Keyes
Thermal Stresses in an Isosceles Right-Tri-Angular Plate with Pinned Edges p. 257-259
D. L. Holl
Roots of Quadratic Equations Expressed in Continued Fractions p. 261-264
Fred Robertson
High Voltage Apparatus for Nuclear Physics p. 265-265
A. Ellett, R. D. Huntoon, D. S. Bayley, J. A. Van Allen, and V. J. Young
Angular Distribution of the Protons from the Deuteron - Deuteron Reaction p. 265-265
A. Ellett, R. D. Huntoon, D. S. Bayley, and J. A. Van Allen
A Deuterium - Deuterium Source of Neutrons p. 266-266
Victor Young
Apparatus for Producing Soft X-Rays p. 266-266
F. M. Bailey
Technique of Radiography with Soft X-Rays p. 267-267
F. M. Bailey
The Magic Eye - A Demonstration Experiment p. 267-267
E. Hobart Collins
Photography - A Physics Course for the Small College p. 268267-267
Roger M. Morrow
The Desensitization of Photographic Emulsions by Various Agents at Different Wavelengths of Light p. 268-268
Homer Mouden
Three Dimensional Color Pictures by Projection p. 268-268
G. W. Fox
The Dielectric Constant of Gases at Ultrahigh Frequencies p. 268-268
Alden H. Ryan
Studies of Dielectric Liquid Mixtures p. 269-269
Cleo C. Byers and Arthur F. Vetter
The Orientation of Certain Liquid Crystals and the Flow of Heat p. 269-269
Leon M. Reynolds and G. W. Stewart
The Significance of the Liquid Structure of Water p. 269-269
G. W. Stewart
Measurement of Relative Humidity by Menas of Thermocouples p. 270-270
C. G. Anderson
Present Role of Ultrasonic Waves in Physics p. 270-270
Victor B. Corey
The M5 and M4 Edges of Gold in the Pure State and in a Gold Copper Alloy p. 270-271
J. W. McGrath
Measurement of Young's Modulus with Small Stress p. 271-271
E. P. T. Tyndall
A Determination of the Adiabatic Elastic Constants of Quartz p. 271-272
Philip J. Hart
Elasticity of Lead Crystals p. 272-272
A. F. Deming
Relative Intensities of Fluorescence at Low Temperatures p. 272-272
J. E. Dinger
A Comparison of Four Methods of Increasing the Reading Speed of College Students p. 273-276
Lyle K. Henry and A. R. Lauer
A Comparison of Personality Adjustment Scores of Rural and Urban Children in Ninth Grade p. 277-283
A. Elizabeth Beal
The Effect of Distraction on the Frequency of Stuttering p. 285-286
Virginia Barber
The Iowa State Student Adjustment inventory: A Filial Relations Scale for Personal Procedures p. 287-290
Earle E. Emme and Lyle K. Henry
A Comparative Study of the A.C.E. Test and the Iowa Silent Reading Test p. 291-293
Orpha Sherman
A New Eye-Hand Coordination Test p. 295-298
William Seidler
Frequency of Serious Visual Defects p. 299-303
Edith Burma and A. R. Lauer
The Problems and Interests of High School and College Students p. 305-309
Owen Haffner and Donald Schild
Analysis of Difficulties in Reading and Learning to Read p. 311-317
Bena K. Hansen
The Reliability of an Abbreviated Test of Alertness p. 319-320
Charles R. Rostron and A. R. Lauer
Practice in Skills Designed to Improve Ability in Playing Handball p. 321-324
H. C. Bennion
A Study of the Development of Skill in Learning to Operate the Hollerith Card-Punching Machine p. 325-327
W. LeRoy Cation
The Comparison and Correlation of Certain Attitudes and Deceptive Tendencies p. 329-331
Wayne Leffler
An Experiment in Transfer of Training p. 33-336
Ruth B. McDonald
A Reversible Card-Sorting Board p. 337-337
Martin F. Fritz
Some Factors Involved in Academic Success p. 337-337
Audrey F. Tollefson
Methods in Teaching Ornithology p. 339-344
T. C. Stephens
Photo-Enlargements as Teaching Aids p. 345-347
H. L. Dean
The Use of "Keys" in Teaching Biological Classification p. 349-351
H. E. Jaques
Tree Study Keys p. 357-357
Ida E. Iversen-Wolden
Parasitology in the High School Curriculum p. 359-362
Elery R. Becker
Student Participation in Field Classes p. 363-368
C. S. Gwynne
Teaching the Scientific Method in General Zoology at the College Level p. 369-370
Karl A. Stiles
Chemical Microscopy as a Tool and Teaching Method in Chemistry p. 371-371
I. B. Johns
Some factors Affecting the Achievemnet in Physics subjects of Students in a Survey Course in the physical Sciences p. 371-372
W. H. Kadesch
A Key to Species of Cyclops in Iowa p. 373-381
Malcolm McDonald
The 1938 Longspur Tragedy in Northwest Iowa p. 383-395
T. C. Stephens
Influence on Oocyst Production of Concentration and Kind of Yeast in Rations of Rats Infected with Eimeria Nieschulzi p. 397-402
Philip C. Waters
The Temperature Cycle in the Okoboji Lakes p. 403-406
Theodore L. Jahn and A. B. Taylor
The Oxidizable Organic Matter and Organic Nitrogen Content of the Okoboji Lakes p. 407-411
A. Gray Adamson and Theodore L. Jahn
The Protozoa of Silver Lake Bog p. 413-418
Don L. Hempstead and Theodore L. Jahn
A Preliminary List of the Mycetophilidae (Diptera) Known to Occur in Iowa p. 419-421
H. E. Jaques and B. G. Berger
Additional Iowa Species of Dolichopodae (Diptera) with Some Ecological Notes p. 423-426
B. G. Berger and H. E. Jaques
A List of the Mordellidea (Coleoptera) Known to Occur in Iowa p. 427-428
H. E. Jaques and Donald Gordner
Some Observations on the Habits of the Thirteen-Lined Ground Squirrels, Citellus Tridecemlineatus Tridecemlineatus (Mitchill) of Iowa p. 429-437
Gow M. Bush
The Histology of the Thyroid Glands of Dogs Sixteen Weeks of Age p. 439-441
W. G. Venzke
Blood Studies in Chronic CO Asphyxia p. 443-443
Marian Davis and Erma Smith
Some Phases of Wound Healing in an Insect (Melanoplus differentialis) p. 443-444
Garth Johnson
The Effects of Homologous Carbamates on the Respiratory Metabolism of Blocked and Active Embryos p. 444-445
Guy M. Everett
The Influence of Colchicine on the Germ Cells of Insects, Melanoplus Differentialis and Gryllus Assimilis, With Special Reference to the Cytoplasmic Inclusions p. 445-446
Thomas P. Dooley
A Bovine Monstra Duplica p. 447-449
Karl A. Stiles and Collis M. Spencer
Electrical Activity of the Invertebrate Eye in Response to Illumination p. 451-452
Frederick Crescitelli and Theodore L. Jahn
Comparative Effects of Gradually Increased Daily Periods of Light and Activity on the Sex Cycle of the Sparrow p. 452-452
Gardner M. Riley
Factors Controlling the Incubation Period of Birds p. 453-453
Warren N. Keck
Coccidian Infections of Western Painted Turtles of the Okoboji Region p. 453-453
Orville J. Deeds and Theordore L. Jahn
A Study of Trichomonas Columbae p. 454-454
Margaret Stiles
The Distribution of Zooplankton in Lake Okoboji p. 455-456
Malcolm McDonald
Effects of X-Rays on the Early Development of the Grasshopper p. 456-456
Titus C. Evans
The Time of Embryonic Determination of Sensoria and Antennal Color, and Their Relation to the Determination of Wings, Ocelli and Wing Muscles in Aphids p. 456-457
Karl A. Stiles
The Biological Action of Rotenone on the Lake Fauna p. 457-458
Howard L. Hamilton
Absorption of Light in the Okoboji Lakes p. 458-459
A. B. Taylor and Theodore Louis Jahn
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