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A Characteristic Selection, John Lindberg

Midwest: A Literary Review

Review of:

• Bad Debts, R. Furgerson
• The Stranger, R. Furgerson
• There are Some Questions, R. Furgerson
• Upon Seeing Purple Swallows, R. Furgerson

The Witch Lady: Sestina, Richard L. Kirkwood

Midwest: A Literary Review

No abstract provided.

God?, Sondra Forstrom

Midwest: A Literary Review

No abstract provided.

The Lost, G. C. Coffin

Midwest: A Literary Review

No abstract provided.

If From Darkness, Joan Moran

Midwest: A Literary Review

No abstract provided.

Depths Of Blue, Shirley Ehlers

Midwest: A Literary Review

No abstract provided.

The Beatnik, James Dugger

Midwest: A Literary Review

No abstract provided.

Any More Flowers, Nancy Martz

Midwest: A Literary Review

No abstract provided.

I Am One And Twenty, Gary Harold

Midwest: A Literary Review

No abstract provided.

Burglary, Claire C. Davis

Midwest: A Literary Review

No abstract provided.

Back Cover

Midwest: A Literary Review

No abstract provided.

1964 Old Gold, State College Of Iowa

UNI Yearbooks

The student yearbook of the State College of Iowa, later known as the University of Northern Iowa.

Engel Conditions On Groups, Donald H. Pilgrim

Proceedings of the Iowa Academy of Science

Let g,c denote positive integers. A group is said to have type (g→c) if every subgroup which can be generated by g elements is nilpotent of class at most c. A result of R. H. Bruck shows that groups of type (4→5) without elements of order 2 are nilpotent of class at most 7. In the present paper the following result is reported: If G is a (4→5) group on 5 generators without elements of order 2, then G is nilpotent of class at most 6.

Some Short-Cut Adaptations Of Complex Numbers In Intermediate Physics, Wendell G. Bradley, Robert E. Crow

Proceedings of the Iowa Academy of Science

A few expedient, useful and well known, but seldom fully utilized adaptations of complex numbers are developed. These should interest teachers and students of intermediate physics courses.

The Effect Of Number Of Reinforcements And Post-Extinction Interval On Spontaneous Recovery, Earl D. Scott, David L. Knutson

Proceedings of the Iowa Academy of Science

Thirty hooded rats were trained in a Skinner box to press a bar to obtain a food reinforcement. Half of the subjects received 30 reinforced trials in training and half received 60 reinforcements. The response was extinguished to a criterion of 10 minutes without the occurrence of a response. Subjects from each of the reinforcement groups were equally divided and assigned to the three post-extinction test groups. One group was tested for spontaneous recovery 24 hours after extinction, the second was tested 48 hours after extinction, and the third group 72 hours following extinction. The only variable found to be …

The Use Of A Thermochemical Experiment In An Introductory Science Class, Verne A. Troxel

Proceedings of the Iowa Academy of Science

An experimental method for determining heat of neutralization, in introductory science classes, with simple laboratory equipment is described. Measured values for heat of neutralization determined by this method are compared with the literature values. The experimental method used offers a suitable means for the determination of heat of neutralization.

Observations On The Morphology And Life History Of Oswaldocruzia Sp. In Frogs, B. T. Ridgeway

Proceedings of the Iowa Academy of Science

A series of experiments were instituted in order to clarify the life history of Oswaldocruzia sp., a nematode of frogs. Suitable hosts were collected and examined for the nematode. Artificial infection of laboratory reared frog tadpoles and young frogs by use of incubated juvenile stages of the parasite was undertaken with negative results. Several reasons are suggested to explain failure of infection attempts. The likelihood that juvenile Oswaldocruzia used experimentally were not infective stages of the parasite is suggested. Morphological characters of the worms support this idea. The possibility that tadpoles and young frogs are refractory to infection, and involvement …

Notes On Iowa Diatoms. Vi I. Rare And Little Known Diatoms From Lowa, E. F. Stoermer

Proceedings of the Iowa Academy of Science

This paper reports the occurrence and known The Treatment of a Cesium Ore by Sulfur Chloride and Chlorine1distribution of 44 rare taxa of diatoms in Iowa. Illustrations of the entities cited are furnished.

Nematodes Associated With Plants In Lowa, Don C. Norton, W. Arden Irvine, David Castaner

Proceedings of the Iowa Academy of Science

During a preliminary survey of plant parasitic nematodes in Iowa, 55 species, mostly in the Tylenchoidea, were identified. Except for Longidorus, Xiphinema, and Trichodorus, the Dorylaimoidea were not considered. Most samples were taken in forage legume fields and woodlands. The seven genera encountered most frequently were the following, as expressed in percentage of total samples (1,308): Tylenchus (56), Helicotylenchus (40), Xiphinema (36), Aphelenchus (31), Tylenchorhynchus (20), Paratylenchus (14), and Pratylenchus (13). Helicotylenchus microlobus and Xiphinema americanum were among the most common and widespread plant parasitic nematodes found. While H. microlobus occurred most frequently in cultivated fields, H. platyurus was mainly …

An Analysis Of The Developmental Effects Of The Embryonic Lethal Mutation X-23 In Drosophila, Phillip J. Reitan

Proceedings of the Iowa Academy of Science

The developmental abnormalities resulting from a recessive, second chromosome, X-ray induced lethal mutation acting during the embryonic period of Drosophila melanogaster are described. Embryos of 18-22 hours of development were studied. The pattern of abnormalities indicates that the lethal effect was due to a general cessation of development during the period from 9-14 hours. There is a general failure of mid-gut and muscle development. The hypoderm, foregut and hindgut structures appear to have developed normally. In the absence of muscle development, hypodermal differentiation produces deep furrows which distort the structure of the embryo. Variation in the expression of the lethal …

A Quantitative Method For The Study Of Pollen And Spores In Bog Sediments, La Verne H. Durkee

Proceedings of the Iowa Academy of Science

A filtration method involving a membrane filter for the collection and subsequent microscopic examination of weighed, treated samples is presented. The filter and the sample collected upon it are both mounted for microscopic examination. The filter permits sufficient light passage for identification of spores and pollen upon its surface. This method permits a more accurate transfer of weighed samples from centrifuge tubes to microscope slides.

Past Presidents, Iowa Academy Of Science

Proceedings of the Iowa Academy of Science

No abstract provided.

Glucose Inhibition Of Cellulose Synthesis By Pyrenochaeta Terrestris, J. C. Horton, N. T. Keen

Proceedings of the Iowa Academy of Science

The rate of synthesis of Pyrenochacta terrestris cellulase was determined on the substrates of glucose, cellulose, and cellulose + glucose. Enzyme production was rapid on cellulose, almost negligible on glucose, and intermediate on cellulose + glucose. On the latter substrate, cellulase appeared after the near exhaustion of glucose. The authors suggest that extremely low concentrations of soluble carbohydrate regulate cellulase synthesis.

Some Matters Of Concern In The County Conservation Program In Iowa, With Special Reference To Land Use, J. Harold Ennis

Proceedings of the Iowa Academy of Science

Eighty-three of Iowa's 99 counties have established County Conservation Boards. County park areas, river access sites, wildlife areas and roadside parks in that order lead the list in numbers developed to date. Polk, Linn, and Black Hawk counties lead the list in area available with 2544, 2275, and 1952 acres respectively. Special safeguards are urged for administration of lands preserved for scientific purposes.

Iowa Squirrels: Hunting Statistics, Sex And Age Ratios, And The Influence Of Mast And Agriculture, Paul D. Kline

Proceedings of the Iowa Academy of Science

Fox and gray squirrels, Sciurus niger rufiventer Geoffroy and S. carolinensis pennsylvanicus Ord, are commonly hunted in Iowa. Average hunting success for 12 years as reported by hunter-cooperators was 0.8 squirrels bagged and 1.8 seen per gun hour. Significant variations in hunting success from one season to another were found. One squirrel was reported crippled for every 14.8 killed. Fox squirrels comprised 87.1% of the total kill; grays, 12.9%. Conservation officer contacts indicated actual hunting success was below that reported by hunter-cooperators. The cooperators were assumed to be hunters with above average skill as compared to average ability of those …

Solubility Of Dialdehyde Starch In Various Dilute Solutions, Lionel K. Arnold, R. Basu Roy Choudhury, Harry C. Roberts

Proceedings of the Iowa Academy of Science

The solubilities of 93%, 62%, and 5% dialdehyde starch in 0.5% and 1.0% sodium hydroxide; 0.5%, 1.0% and 5.0% borax; and in 0.5%, 1.0% and 5.0% sodium acetate solutions at 55°C for solution times of 15, 30, 60, and 120 minutes were determined as a part of an overall study of DAS-wheat gluten reaction products designed for adhesives. A method for determining the DAS content of solutions from apparent densities was developed. The results indicate that while any dilute inorganic alkaline solution will probably dissolve DAS the choice of reagent will depend upon what is desired in solution time, chain …

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

Preliminary Report: Master Of Arts In Education Degree: Graduates In Professional Education At The State College Of Iowa, 1952-1962, Richard R. Olmsted, Clifford L. Bishop

History of Education Book Gallery

No abstract provided.

Comparison Of Performance Of Eighth And Tenth Year Students With Concepts Of General Biology, Herbert P. Brigham

Iowa Science Teachers Journal

The secondary science curriculum at the University High School in Iowa City, Iowa, is designed to include a required three year junior high sequence which consists of seventh grade chemistry / geology, eighth grade biology, and ninth grade physics / astronomy.

A Guide To The Common Lichens Of Boone And Story Counties, Lowa, Lois H. Tiffany, Karen K. Juhl

Proceedings of the Iowa Academy of Science

A key to the common lichens of Boone and Story Counties, Iowa is presented with brief descriptions of the genera and common species.