Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 56 (1949) > Annual Issue
Volume 56, Annual Issue (1949)
Front Matter
General Interest Articles
What an Academy Can Do to Promote the Conservation of Natural Resources p. 29-37
J. M. Aikman
Science Changes Its Mind p. 61-71
W. H. Kadesch
Conservation Knowledge and Attitudes of Iowa Academy of Science Members p. 73-77
George D. Lovell
The Social Responsibility of Science Teachers p. 79-62
Wayne B. Denny
The Social Responsibility of the Teacher of Science p. 79-82
Joseph B. Gittler
Research
Response of the Multiflora Rose to Growth Conditions in Southern Iowa p. 87-94
J. M. Aikman
Direct Seeding of Black Locust for Production of Posts in Southern Iowa p. 95-99
J. M. Aikman and G. R. Cooper
A Comparison of the Flora of Iowa With That of Alaska and Yukon p. 101-105
J. P. Anderson
Notes on Grasses Collected in Alaska and Adjacent Canada p. 107-112
Robert G. Brown
Spontaneous Doubling of the Chromosome Complement in Monoploid Sporophytes of Maize p. 113-115
Sherret S. Chase
The Use of Gelatin Capsules in Artificial Pollination p. 117-119
William D. Creasy
Megagametophyte Development of Scrophularia Lanceolata p. 121-128
William D. Creasy
The McCormick Effect in Cultures of Diaporthe phaseolorum var. batatatis from Soybeans p. 129-131
Joseph C. Gilman and Lois H. Tiffany
Considerations Involved in the Management of Prairie Reserves p. 133-142
Ada Hayden and J. M. Aikman
A Method of Determining Vein Length per Unit Area in Grass Leaves p. 143-145
Robert C. Lommasson
Hysteriales of Iowa p. 147-157
Bernard Lowy
A Continuation of the Study of the Myxomycetes in the Vicinity of Mt. Pleasant, Iowa p. 159-160
Jean Morrow and Keith Shaver
Root-Like Protuberances Formed on Leaves and Cotyledons of Helianthus Annuus L. in Response to 2, 4-D Treatment p. 161-166
S. N. Postlethwait
Cupule Formation on Seedlings of Galinsoga Ciliata (RAF.) Blake and Helianthus Annuus L. Following Exposure to 2, 4-Dichlorophenoxyacetic Acid p. 167-178
S. N. Postlethwait
Further Study on the Liverworts of Henry County, Iowa p. 179-181
S. S. Statler
Soil Aeration in Relation to Growth of Tomatoes p. 183-188
Herman Wiebe
Differences in Foliar Organization Among Leaves from Four Locations in the Crown of an Isolated Tree (Acer platanoides) p. 189-198
Robert B. Wylie
Hydrologic Comparisons for Floods of June 1947 in Iowa p. 199-223
L. C. Crawford
Iowa Pennsylvanian Goniatites p. 225-228
A. K. Miller
A Bignell (?) Loess Section in Western Iowa p. 229-231
Robert V. Ruhe
Pennsylvanian Charophyta in Iowa p. 233-233
Leo A. Thomas
Micropaleontological Zones in Iowa p. 235-240
L. A. Thomas and C. A. Balster
On Generalized Means p. 241-247
H. P. Thielman
The Problem of Controlling Level of Learning in Studies of Associative Interference in Psychomotor Performance p. 249-253
Jack A. Adams
Confidence in Correctness of Responses on an Objective Test p. 255-257
Martin F. Fritz
Further Studies in Infant Speech p. 259-261
Orvis C. Irwin
Effect of So-called Night-driving Glasses on Visual Acuity - A Preliminary Study p. 263-270
A. R. Lauer, Edwin D. Fletcher, and Paul Winston
Homogeneity of Behavior Indicated from the Spearman-Brown Prophecy Formula p. 271-277
Charles O. Neidt
The Concept of Attitude p. 279-284
Dale Ortmeyer
Some Factors in the Academic Superiority of Veteran Students p. 285-288
William A. Owens and William A. Owens Jr.
Keeping Employees Informed p. 289-297
Joann Pitcher and Max E. Thompson
Projecting Introductory Psychology Examinations at Iowa State College p. 299-301
Ross R. Thomas
Reliability and Relationship of Certain Measures of Reading Ability p. 303-310
David K. Trites
Embryonic Cell Respiration: The Effect of Methylene Blue and 2-4 Dinitrophenol on Embryonic Cell Respiration p. 311-321
Joseph Hall Bodine and Laurence Rockwell Fitzgerald
Micro-Injection and Bio-Plastics Imbedding of Embryos p. 323-324
William Paul Burch
The Iowa Cooperative Fisheries Research Program p. 325-331
Kenneth D. Carlander
An Annotated List of the Fishes of the Upper Des Moines River Basin in Iowa p. 333-342
Harry M. Harrison
Notes on the Bird Life in the Mississippi Valley p. 343-345
James Hodges
A Study of the Cardinal in Iowa p. 347-361
James Hodges
A report on the Iowa Species of Tachinidae (Diptera) in the Iowa Insect Survey Collection p. 363-365
H. E. Jaques
Mixed Colonies in Ants p. 367-370
Robert L. King
Revisions and Additions to Our List of Iowa Corixidae p. 371-375
D. D. Millspaugh
A Preliminary List of Hemerobiidae Known to Occur in Iowa p. 377-377
Donovan Orman and H. E. Jaques
Some Contributions of Fossil Study to the Problem of Vertebrate Origin p. 379-384
George M. Robertson
A Fish Population Study of Storm Lake p. 385-395
Earl T. Rose
A Preliminary List of the Dytiscidae Known to Occur in Iowa p. 397-398
J. C. Schaffner and H. E. Jaques
A Preliminary List of the Hydrophilidae Known to Occur in Iowa p. 399-400
S. S. Statler and H. E. Jaques
Notes on Ant-Lions p. 401-402
Richard F. Trump
Back Matter
