Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 58 (1951) > Annual Issue
Volume 58, Annual Issue (1951)
Front Matter
General Interest Articles
Papers Presented at the 1951 Meeting p. 63-69
Research
The Flora of Iowa County p. 71-95
Nathan W. Easterly
Astraeus and Geastrum p. 97-99
Marion D. Ervin
A study of Chaetomium in cellulose decay p. 101-106
Wendall M. Farrow
The Flora of Cedar County, Iowa p. 107-131
Marcus J. Fay
The Relationship of TEPP and Photoperiod to Flowering and Fruiting in Tomato p. 133-138
Wayne C. Hall
Screening Chemotherapeutants for Control of Oak Wilt p. 139-147
Paul F. Hoffman
Unialgal Cultures of Haematococcus lacustris (Girod) Rostaf. p. 149-153
R. L. Hulbary
Seeds of Bromus Secalinus and Commutatus p. 155-163
Duane Isely
Studies on Fungal Membranes p. 165-171
Lawrence Kaplan
Report on the VII International Botanical Congress, Stockholm, July 12-20, 1950. p. 173-174
G. W. Martin
The Numbers of Fungi p. 175-178
G. W. Martin
Nitrate Adsorbed on Pumice as a Nitrogen Source for Plant Growth p. 179-188
Wayne J. McIlrath
Vegetational Changes in Ungrazed Grassland at the Iowa Lakeside Laboratory. p. 201-207
Sylvia Rudman and Richard W. Pohl
Sprays for Control of Sycamore Anthracnose p. 209-214
Paul H. Schuldt
Fungi of Two Forest Soils of Johnson County p. 209-214
Willard A. Taber
Herbarium of the State University of Iowa p. 215-219
Robert F. Thorne
Nutrition and Aeration in Relation to the Growth of Cannabis saliva p. 221-228
John R. Weber
The Simplest Leaf Organization Found in Surveys of Several Hundred Species of Dicotyledons p. 229-234
Robert B. Wylie
Effect of Iodinated Casein and Thiouracil on the Concentrations of Carotenoids and Vitamin A in the Blood Plasma of Young Dairy Animals p. 235-243
R. S. Allen, G. H. Wise, and N. L. Jacobson
A Cyano Compound Related to Acetylcholine p. 245-249
Calvin Hanna
The Absorption Spectra of Derivatives of Phthalic Anhydride p. 251-260
Calvin Hanna and W. T. Smith Jr.
Electron Emission from a Carbon Surface p. 261-264
Alvin E. Walz and George Glockler
Vitamin B12 Content of Kidneys as Determined by Different Bioassay Procedures p. 265-274
Edmund Wei-Kuang Cheng and Byron H. Thomas
The Campbell Micro-Fossil Washer p. 275-277
Carlyle B. Campbell
Montmorillonite A Factor in the Breakdown of Concrete Aggregate p. 279-284
Fred H. Dorheim
Structure in the Des Moines Series at Redfield, Iowa p. 285-289
Charles S. Gwynne
Recent Eskers in the Wind River Mountains of Wyoming p. 291-294
Mark F. Meier
Use of the Morphology of Buried Soil Profiles in the Pleistocene of Iowa p. 295-306
W. H. Scholtes, R. V. Ruhe, and F.F. Riecken
Early History of the Iowa Mathematics Section p. 307-310
R. B. McClenon
Theorem on the Zeros of Polynomials p. 311-312
Wm. J. Stoner
Work Decrements in the Performance of a Pursuit Task Arising from Relatively Short Periods of Massed Practice p. 313-320
Abram Barch
The Role of Albedo in Color Discrimination of Spider Monkeys p. 321-330
Robert Q. Easter and Daryl G. Nichols
Periodicities in Motor Performance as a Function of Work-Surface Height p. 331-339
Douglas S. Ellis
An Apparatus for Measuring Reaction Time Under Conditions of Preoccupation p. 341-344
Richard E. Frey
Statements of Cynicism Rated by College Students p. 345-349
Martin F. Fritz
Comparison of Form and Color Fields p. 351-356
Harold V. Gaskill Jr., Albert G. Rostenbach, and Robert M. Thompson
Rate of Manipulative Learning as a Function of Goal-Setting Techniques p. 357-362
Gerald C. Helmstadter and Douglas S. Ellis
Some Effects of Color on Perception of Relative Motion at Night p. 363-369
Donald A. Hoppe and A. R. Lauer
Age and Sex Difference in Performance in the O'Connor Blocks p. 371-374
R. N. Kjerland
Making Accident Statistics More Meaningful p. 375-383
Pearl W. McMurray and A. R. Lauer
Some Components of Mechanical Composition p. 385-389
Gilbert E. Miller
Some Social Correlates of Intellectual Changes p. 391-396
Dale Ortmeyer and William A. Owens Jr.
The Scotometer - A Dark-Tunnel Apparatus For Studying Night Vision of Drivers p. 397-400
Harold I. Stalder, Donald A. Hoppe, and A. R. Lauer
An Analysis of Reading Improvement p. 401-404
Lewis R. Vavra
Preliminary Report on the Distribution of Bottom Organisms in West Lake Okoboji, Iowa p. 405-414
John E. Bardach, John Morrill, and Frank Gambony
A Previously Unnamed Amoeba, Mayorella clavella, nov. sp. p. 415-421
Eugene Cleveland Bovee
A Progress Report on the Study of Perch Movement in Lake Okoboji, Dickinson County, Iowa p. 423-434
Douglas G. Brown and Walter G. Rosen
An Unusually Large Population of Fish in a Gravel Pit Lake p. 435-440
Kenneth D. Carlander
Developmental Abnormalities in Drosophila Melanogaster Induced by Ultraviolet Radiation p. 441-448
E. V. Enzmann
A Lead Destroying Ant from Panama p. 449-450
E. V. Enzmann
A Study of the Effect of Penicillin and Dihydrostreptomycin on Protozoa with Special Reference to the Problems of Bacteria-Free Culture and Speciation in Euglena p. 451-467
Carol May Goodwin
Studies on Loricate Ciliophora II. Folliculina boltoni Kent p. 469-476
John Meacham Hamilton
Sketches of Little Known Iowa Ornithologists p. 477-480
James Hodges
Factors Influencing the Extent of Pulmonary Hemorrhage Following Explosive Decompression p. 481-485
H. H. Keasling and Calvin Hanna
More Mixed Colonies in Ants p. 487-489
R. L. King and R. M. Sallee
The Production of Ring-necked Pheasants in Winnebago County, lowa p. 491-495
E. L. Kozicky and G. O. Hendrickson
A Search for the Natural Vectors of Avian Malaria in Iowa, with Notes on Other Mosquito Parasites p. 497-499
Jean L. Laffoon
Hydra in an Iowa Nursery Lake p. 501-505
Tom Moen
On the Chemotherapeutic Action of 3-Nitro-4-Hydroxyphenyl-arsonic Acid Against the Coccidium Eimeria Tenella in Chickens p. 507-516
Neal F. Morehouse and F. McKay
The Status of the Raccoon in Iowa for the Past Twenty Years as Revealed by Fur Reports p. 527-531
Glen C. Sanderson
Analysis of the 1948, 1949, and 1950 Waterfowl Kill Samples in Iowa p. 533-551
James G. Sieh
The Immature Stages of American Pachygronthinae (Hemiptera: Lygaeidae) p. 553-561
James A. Slater
An Extreme Case of Thermal Stratification and its Effect on Fish Distribution p. 563-566
George Sprugel Jr.
Notes on the Age and Growth of Spirit Lake Yellow Pikeperch (Stizostedion V. Vitreum) p. 517-525
Earl T. Rose
Back Matter
