Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 57 (1950) > Annual Issue
Volume 57, Annual Issue (1950)
Front Matter
General Interest Articles
Research
The Effect of Thiouracil on the Golgi Apparatus of the Thyroid Gland in the White Rat p. 505-510
Ralph H. Shepherd
Effect of Wave Length Bands of Filtered Light on Germination of Seeds of Kentucky Bluegrass (Poa Pratensis) p. 61-71
Louis N. Bass
Some Responses of Black Locust to Planting Site Treatment p. 73-90
George R. Cooper and J. M. Aikman
Dickinson County Flora (A Preliminary Check-List of the Vascular Plants of Dickinson County, Iowa, Based Largely on the Herbarium of the Iowa Lakeside Laboratory) p. 91-129
Martin L. Grant
Vein Length Per Unit Area of Blade in Native Grasses p. 131-134
Robert C. Lommasson
The Adaptability of Several Histological Techniques to the Preparation of P32 Radioautographs from Plant Tissues p. 135-140
Wayne J. McIlrath
A Continuation of the Study of the Myxomycetes in the Vicinity of Mt. Pleasant, Iowa p. 141-142
Jean Morrow and Keith Shaver
Lophotrichus as a Cellulolytic Genus p. 143-148
Thomas J. Bulat
Foliar Organization and Vascularization of Tolmiea Menziesii p. 149-155
Robert B. Wylie
Specific Gravities and Boiling Points of Dichlormethane - Soybean Oil Mixtures p. 157-160
L. K. Arnold and L. J. Breuklander
Exploratory Studies on the Constituents of Scoparia dulcis (Linn) p. 161-164
Watler M. Budde and R. L. Shriner
Effect on Growth and Efficiency of Food Utilization of Quantity of Protein and Vitamin B12 Supplementation p. 165-170
Edmund Wei Cheng and Byron H. Thomas
Vinyl Plastics as Materials of Construction p. 171-180
Karl Kammermeyer
A Simple Vacuum Tube Oscillator - Tesla Coil Source Unit for Spectrographic Analysis p. 181-185
Robert E. Keller and Lothrop Smith
The Colorimetric Determination of Cobalt with Dimethylglyoxime and Benzidine p. 187-191
Francis T. Lee and Harvey Diehl
An Empirical Titrimetric Method for the Determination of Beryllium p. 193-201
John H. McClure and Charles V. Banks
Mechanism of Salivary Amylase Action p. 203-209
John H. Pazur, Dexter French, and Doris W. Knapp
The Formation of Morpholine Thiosulfate From Morpholine and Sulfur p. 211-213
Edward M. Peters and Watler T. Smith Jr.
The Huggins Test for Cancer and Related Protein Determination p. 215-223
Hjalmer V. Peterson and Harold W. Morgan
Interaction Between Proteins and Chloride Ion p. 225-233
Charles Tanford
Infrared Spectrum and Structure of Ethylene Imine p. 235-239
George E. Evans and Tice Hoffman
Basement Complex Biotite Granite at Dubuque, Iowa p. 241-244
Keith E. Anderson
Glaciated Surfaces in Central Iowa p. 245-252
Charles S. Gwynne
Causes of Differences in Soil Series of the Missouri River Bottomlands of Monona County p. 253-258
J. E. McClelland, E. M. White, and F. F. Riecken
Some Notes on the Glacial Geology of Drake Quadrangle, North Dakota p. 259-262
Lewis F. Jenkinson
Determination of Calcite-Dolomite Ratios in Carbonate Rocks p. 263-266
Ralph W. Lawson
A Post-Loveland Pre-Iowan Loess in Western Iowa p. 267-269
John C. Mickelson
An Upper Silurian Vertebrate Horizon p. 271-275
George M. Robertson
Petrographic Notes on the Loesses of the Des Moines Drift Lobe p. 277-281
Robert V. Ruhe
Some Observations of the Paha of Northeast Iowa p. 283-291
W. H. Scholtes and Guy D. Smith
Additional Notes on the Position of the Independence Shale of the Iowa Devonian p. 293-298
Merrill A. Stainbrook
Some Physical Characteristics of Wiesenboden and Planosol Soils Developed from Peorian loess in Southwestern Iowa. p. 299-305
Rudolph Ulrich and F. F. Riecken
Bounds for the Derivatives of the Solution of the Neumann Problem p. 307-313
Clair G. Maple
Bernoulli Numbers p. 315-319
R. B. McClenon
Measures for Predicting Calculus Achievement p. 321-325
Orlando C. Kreider
The Effectiveness of Experienced and Inexperienced Teachers as Shown by Student Achievement p. 327-330
Orlando C. Kreider
Structure of BaTiO3 p. 331-336
Edward G. Grimsal
Diamond Conduction Counters p. 337-346
Robert K. Willardson
Differential Interests of Agricultural College Students as Measured by the Kuder Preference Record p. 347-351
John A. Bath
Reliability of the O'Connor Block Test p. 353-356
Richard H. Bunch, R. N. Kjerland, and A. R. Lauer
A Comparison of Attitude Scores Made on the Conover Attitude Inventory Before and After a Course in Driving p. 357-359
Raymond J. Agan
Motor Responses as a Function of Type of Conflict p. 361-365
Burton G. Andreas
Some Recent Changes in Rural Living Which Have Psychological Implications p. 367-371
William H. Dreier
Factorial Study of Speed of Response in Simple Cancellation Tasks p. 373-378
Dale W. Dysinger
Relation of the Fritz-Neidt Practical Policy Test to Freshman: Entrance Tests p. 379-380
Martin F. Fritz
Response of Veterinarians to the Strong Vocational Interest Blank for Men p. 381-384
Thomas E. Hannum
An Empirical Study of Scoring Methods for the Conover Driving Attitude Inventory p. 385-386
T. E. Hannum, Gerald C. Helmstadter, A. R. Lauer, and David H. Soule
A Method for Measurement of Perceptual Time on the Highway p. 387-390
Donald A. Hoppe
An Apparatus to Mleasure Reaction Time Under Mobile Conditions by Radio Control p. 391-398
Reginald N. Kjerland and A. R. Lauer
A Forced-Choice Rating Scale for College Instructors p. 399-406
A. R. Rustebakke, George D. Lovell, and Charles F. Haner
"Single-trial-per-task" versus "Multiple-trials-per-task" in the Acquisition of Skill in Performing Several Similar Tasks p. 407-416
Dorothy E. McAllister
Development of a Test of Aptitude for Veterinary Medicine p. 417-423
William A. Owens
Changes in Vision as a Result of Hypnotic Age Regression p. 425-427
William H. Roberts and Duane Black
Effect of Shock on Performance in a Paired-associate Learning Task p. 429-433
Eli Saltz
Mortality in Relation to Age in Young White Pekin Ducks with Blood-Induced Plasmodium lophurae Infection p. 435-438
E. R. Becker
Some Effects of Temperature on the Rates of Embryonic, Postembryonic and Adult Growth in Hyalella azteca p. 439-444
Eugene Cleveland Bovee
Observations of Predators of European Corn Borer Eggs p. 445-448
Richard C. Froeschner
Further Studies of the Modified Denil Fishway in the Des Moines River p. 449-456
Harry M. Harrison and Everett B. Speaker
Contributions to the Ornithology of the Upper Mississippi Valley - Pt. I. An Unpublished List by J. H. Paarmann on the Birds of Davenport, Iowa, and Vicinity p. 457-459
James Hodges
Recent Nesting of the American Egret in Iowa p. 461-463
James Hodges
Anomaly of the Cat p. 465-466
Robert H. LaBlanc
A Wasp With Three Pairs of Wings (Hymenoptera; lchneumonidae) p. 467-468
Jean L. Laffoon
Population of a Colony of Formica Rufa Melanotica Emery p. 469-473
Robert L. King and Francis Walters
Experiments on the Chemotherapy of Blackhead in Turkeys p. 475-482
Neal F. Morehouse and Willis C. McGuire
Intranasal Newcastle Disease Virus Vaccination of Baby Chicks Infected with Ascaridia galli p. 483-489
O. H. Peterson and K. B. Kerr
Some Paleoecoloical Speculations Regarding the Earliest Vertebrates p. 491-497
George M. Robertson
The Professional Status of the Biologist p. 499-503
Frank M. Semans
Activity Patterns of Some Clear Lake, Iowa, Fishes p. 511-518
James G. Sieh and John Parsons
Notes and New Records of Iowa Henliptera (Heteroptera) p. 519-521
James A. Slater
The Value of Data From Four Iowa Quail Seasons p. 523-527
M. E. Stempel
A Preliminary List of the Rhagionidae (Diptera) Known to Occur in Iowa p. 529-530
Keith L. Rhodebeck and D. D. Millspaugh
A Preliminary List of the Gyrinidae (Coleoptera) Known to Occur in Iowa p. 531-532
J. C. Schaffner and D. D. Millspaugh
Some Proboscidian Remains Found in Henry County p. 533-534
Keith Sutton
A Revision of tile List of Tabanidae (Diptera) Known to Occur in Iowa p. 535-536
Keith Sutton and D. D. Millspaugh
Home Range of the Southern Woodchuck p. 537-540
Richard F. Trump
A Preliminary List of the Buprestidae (Coleoptera) Known to Occur in Iowa p. 541-543
Edwin S. Kajihiro and D. D. Millspaugh
A prelilninary List of the Calliphorinae (Diptera) known to occur in Iowa p. 545-547
Carl M. Yoshimoto and D. D. Millspaugh
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