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Proceedings Of The Sixty-Seventh Meeting Of The Iowa Academy Of Science Held At St. Ambrose College, Davenport, Iowa, April 15 And 16, 1955: Minutes Of The 1955 Meeting

Proceedings of the Iowa Academy of Science

No abstract provided.

The Ecology Of Balsa (Ochroma Lagopus Swartz) In Ecuador, J. M. Aikman

Proceedings of the Iowa Academy of Science

Balsa, the lightest of commercial timbers, has only one third the weight of soft pine. The number of uses and the demand for balsa lumber increased about three-fold during the second world war, but since the war the demand has remained at a level of more than half that of war-time. The distribution of balsa in the American tropics is from Puerto Rico westward through the other islands of the West Indies into southern Mexico and southward through Central America to Colombia, Ecuador, Peru and Bolivia.

College Catalog 1954-1955, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents:

Calendar, 1955-56 ... 7
Officers of Administration ... 8
Questions Most Frequently Asked ... 10
General Information ... 13
College Policies ... 37
Teachers Certificates ... 48
Curricula ... 51
Courses of Instruction ... 69
Graduate Study ... 163
Extension Service ... 175
College Terminology ... 181
Instructional Staff ... 185
Index ... 210

The Fluctuation In Abundance Of Walleyes In Spirit Lake, Iowa, Earl T. Rose

Proceedings of the Iowa Academy of Science

One of the few lakes in Iowa which might be classified as typical for the walleye (Stizostedion v. vitreum) is Spirit Lake in Dickinson County. It is the largest lake in the State, covering nearly 6,000 acres. There are numerous rock reefs, points and bars together with many sandy and glacial boulder strewn beach areas. These factors along with relatively clear waters, free of objectionable summer algal blooms, provide a suitable environment for the esteemed walleye. This species is in great demand by sport fishermen and any deviation from fairly good angling succes is viewed with much dismay and concern. …

Food And Feeding Habits Of Some Fishes In A Dredged Iowa Lake, Joseph H. Kutkuhn

Proceedings of the Iowa Academy of Science

In the last twenty years, the Iowa State Conservation Commission has dredged a number of shallow prairie lakes to enhance their recreational value. North Twin Lake, Calhoun County, was partially deepened by dredging in 1939. This lake, approximately 569 acres in area, now supports considerable boating, swimming, and fishing. In 1951 the Iowa Cooperative Fisheries Research Unit started a comparative study of the bottom fauna in the dredged and undredged portions of the lake. To determine the degree to which the various bottom organisms were being utilized as fish foods, the food habits of the more important fish species inhabiting …

Pheasant Nesting And Production In Winnebago County, Iowa, 1954, Eugene D. Kloglan

Proceedings of the Iowa Academy of Science

Since 1935 the Iowa Cooperative Wildlife Research Unit has conducted life history and management studies of the ring-necked pheasant (Phasianus colchicus) on the Winnebago Research Area in north-central Iowa. From 1939 to 1941, intensive investigations were centered on nesting and production on a 1520-acrc plot lying within sections 13, 14, 15, 23 and 24 of Eden Township, Winnebago County (Baskett, 1947). Field activities were curtailed during World War II, and further research on this plot was not begun until 1949 (Kozicky and Hendrickson, 1951). Changes in farming techniques, cropping practices and types of machinery used by farmers can exert a …

Evaluation Of Driving Performance At Three Levels Of Driving Experience By Means Of The Auto Trainer, Robert F. Morrison

Proceedings of the Iowa Academy of Science

Driver education is one of the most generally accepted methods being advocated' for reducing the annual motor vehicle fatality toll. Lack of teachers and facilities limit the number of students that can be taught by the schools. One approach for teaching driving skills is by the use of simulated driving apparatus used in the classroom or laboratory. An example of these devices is the Auto Trainer developed by the American Automobile Association. A study by Lauer, Allgaier, Siebrecht and Suhr (1) shows that the Auto Trainer yields sufficiently reliable scores to warrant its use as an educational instrument in a …

Comparisons Of Petrographic And Engineering Properties Of Loess In Southwest, East-Central, And Northeast Iowa, R. L. Handy, C. A. Lyon, D.T. Davidson

Proceedings of the Iowa Academy of Science

Recent studies by the Iowa Engineering Experiment Station have been concerned with basic properties of loess. The objective of the studies is to help solve the problem of stabilization of loess for roads. To date studies have been made on loess from three areas in Iowa, southwest, east-central, and northeast Iowa (Figure 1). Property studies of loess in each area were conducted in two phases: The first phase of study was to sample the loess and determine properties and property variations within each area. Combinations of grid patterns and traverses were used to lay out the sample locations, and samples …

The Relationship Between ''Achievement Imagery" And Stuttering Behavior In College Males, Leonard D. Goodstein, John G. Martire, Charles D. Spielberger

Proceedings of the Iowa Academy of Science

The empirical work of Johnson (3), Darley (1), Moncur (9) and the yet unpublished research recently completed at the University of Iowa Speech Clinic under a grant from the Hill Family Foundation lends considerable support to these speculations. These studies have reported that the parents of stuttering children, as compared with the parents of non-stutterers, are generally more perfectionistic, have higher standards and expectations both for themselves and their children and are less well satisfied with the progress they and their children make in achieving these expectations.

An Electronic Analog Computer For The General Physics Laboratory, H. H. Helmick, P. S. Helmick

Proceedings of the Iowa Academy of Science

Electronic analog computers are being increasingly used today in physics (1, 2), mathematics (3), and engineering (4), and we believe they are valuable as an instructional aid in a college physics department. We have found that the construction of this computer illustrated important electronic principles to our students, motivated them in their study of differential equations, gave them techniques that can be applied to problem-solving on any analog computer, and provided them solutions of some of the important equations of physics.

Natural Succession In Planted Conifer Forests In Eastern New York, Norman H. Russel

Proceedings of the Iowa Academy of Science

During the summer of 1954 the author was privileged to conduct floristic and ecological studies on the Edmund Niles Huyck Preserve, located near Rensselaerville, in Albany County, New York. This Preserve is about 470 acres in size and centers about two bodies of water. The larger is called Lake Myosotis, after the wild forget-me-not, Myosotis laxa Lehm, which is abundant along its margin. The Preserve was established in 1931, in memory of Edmund Niles Huyck, by his widow and friends, and the majority of it has been under strict and complete protection from disturbance since that time. Parts of the …

Relation Of Taintor And Haig Soil Series To Microrelief Of The Buried Kansan Till Surface In Jefferson County, Lowa, George M. Schafer

Proceedings of the Iowa Academy of Science

The principal soil associations which occur in Iowa have been described by Simonson, Riecken, and Smith (1952). Important in southeastern Iowa are the Mahaska-Taintor and Grundy-Haig soil association areas. The major soils of these associations have been derived from loess under grass vegetation. On the state soil association map a gradational boundary between these two soil association areas is placed near the northern boundary of Jefferson County. In southwestern Iowa functional relationships existing between the morphological, physical, and chemical properties of soils and the distribution and thickness of loess have been reported for gently sloping Brunizem soils by Hutton (1948) …

A Note On The Origin Of "Blue Rain", James M. Vinje, Mary M. Vinje

Proceedings of the Iowa Academy of Science

On Wednesday, April 7, 1954, several householders and car owners in the Davenport area reported to the newspapers that their property had been spattered with blue spots during a severe rainstorm. A similar incident was reported from Detroit, Michigan on Thursday, April 8, 1954. Newspaper jargon referred to the incident as "blue rain". Varied explanations as to the origin of the "blue rain" included the possibility of wind blown paint, "fall-out" particles from hydrogen bomb tests in the Pacific, vegetable material of some type, tree buds, or pollen. The authors became interested in the problem and a trip was made …

Thymelaea Passerina, A New Weed In The United States, Richard W. Pohl

Proceedings of the Iowa Academy of Science

During a survey of the loess bluffs flora of the Missouri River border of Iowa, Morrill (1953) discovered a few individuals of an unknown weed growing on bare vertical loess south of Council Bluffs. It proved impossible to identify this plant with any of the usual American manuals. It eventually was determined to be Thymelaea passerina (L.) Coss. and Germ. Inquiries addressed to the principal American herbaria revealed that only one specimen of the plant had been previously collected in this country. This was found in a pasture in Cedar County, Nebraska, in the northeastern corner of the state.

Studies On The Hydrolysis Of Acetyl-1-C14-Salicylic Acid, J. I. Routh, R. W. Knouse, W. D. Paul

Proceedings of the Iowa Academy of Science

In recent years, studies of the metabolism of salicylates have been concerned primarily with the concentration of salicylates and metabolities in various body fluids. The absorption of salicylates and hydrolysis of acetylsalicylic acid have received little attention. The presence of conjugated forms of salicylates in plasma.is still in dispute. Brodie, Udenfriend and Coburn (1) were unable to demonstrate the presence of appreciable quantities of salicyluric acid in the plasma, although Kapp and Coburn (2) had shown it to be one of the main conjugated forms in the urine. Lester, Lollie and Greenberg (3) reported that in a 75 Kg. person, …

Winged Workers In The Ant, Formica Obscuriventris Clivia Creighton, Robert L. King

Proceedings of the Iowa Academy of Science

In our studies of the ants found in the region around the Iowa Lakeside Laboratory in northwestern Iowa, we have encountered two species of Formica with deep clypeal fossae. One of these is almost hairless, and has been called Formica fossaceps Buren in our papers ton mixed colonies; the other species is very hairy, with hairs also on the scapes. The hairs on the scapes led to the misidentification of this form as Formica oreas comptula Wheeler; we now consider this hairy form to be Formica obscuriventris clivia Creighton. For help in unravelling this snarl we must thank Dr. Marion …

The Museum At The Iowa State Normal School (State College Of Iowa), Fred Cram

Library Documents & Reports (entire collection)

So far as a careful scanning of the catalogs of ISNS reveals, the first mention of a museum occurs in the 1896 issue, where on page 45 we find that “Natural Science has its museum well stocked with minerals, rocks, fossils dried and alcoholic specimens.”

While our Museum has usually been referred to as one of natural history, there has accumulated over the years a miscellaneous collection of other materials. There are items of historical value, such as swords, guns, and uniforms. There are old documents, coins, and curiosities. There are boats and other items from river and sea. Industrial …

Discovery And Description Of A Sphagnum Bog In Iowa, With Notes On The Distribution Of Bog Plants In The State, Martin L. Grant, Robert F. Thorne

Proceedings of the Iowa Academy of Science

This Sphagnum bog is located in Dead Man's Lake, Pilot Knob State Park, Hancock Co., Iowa. The county is in the center of the state east and west and is in the second tier of counties from the north, just south of Winnebago Co., which, in turn, borders Minnesota. Pilot Knob Park is in the northeastern part of the county, half in Section 3 and half in Section 4 of Ellington Township (97-23). It is right at the northern border of the county and three miles west of the eastern border. It can be reached by driving 3.5 miles east …

Annual Report Of The Registrar 1954-1955, University Of Northern Iowa

Institutional Effectiveness & Planning Documents

Contents:

--- Comparisons Worth Noting
--- Summary of Attendance
--- Attendance by Quarters
--- Full-time Equivalency Enrollment
--- Degrees Granted 1954-55
--- Summary of Veterans Attendance
--- Pupils in the Campus and Affiliated Schools 1954-1955
--- Creative Study of Majors
--- Cumulative Study of Majors by Classification
--- Study of Non-resident Work
--- Non-Resident Enrollments 1954-55

Dodder Overwintering As Haustorial Tissues Within Cuscuta-Induced Galls, H. L. Dean

Proceedings of the Iowa Academy of Science

All species of Cuscuta in temperate zones are commonly described as annuals, although certain members of this genus have been reported as frequently and perhaps characteristically perennial in these regions. Perennial species of dodder are supposedly restricted to tropical regions, and of these Cuscuta reflexa Roxb. is often cited as an example. Details as to the mode of perennation of tropical dodders are often lacking or incompletely presented.

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

Nomination Of H. S. Conard For Honorary Fellow

Proceedings of the Iowa Academy of Science

No abstract provided.

Reports: The Secretary-Treasurer; Financial Statement; Committee Reports

Proceedings of the Iowa Academy of Science

No abstract provided.

In Memoriam: Joseph Hall Bodine; Harold Burr Bryant; Dio Lewis Hall; John Milton Lindly; Herbert Osborn; Oscar Wallace Park; Harold Stiles; A. Milton Weidman; Frank Gary Brooks; Philip Greeley Clapp; William Henry Kadesch; Bradford Kuhns Macgraw; Jessie A. Parish; Ralph M. Robinson; Reuel Hull Sylvester; Otis R. Wolfe

Proceedings of the Iowa Academy of Science

No abstract provided.

A Fungal Infection Of The Blue-Green Alga, Chroococcus Turgidus, John D. Dodd

Proceedings of the Iowa Academy of Science

Chroococcus turgidus (Kuetz.) Naegeli occurs in great abundance in the shallow pools of an alkaline fen near Silver Lake, Iowa. Observations over a period of four years have shown a characteristic association in these pools of C. turgidus, Gomphosphaeria aponina Kuetzing, a large species of Oscillatoria, a species of Chara, and the aquatic moss, Drepanocladus aduncus (Hedw.) Wamst. The fen has been well descibed by Anderson ( 1943) and its unique vascular flora has long been a center of botanical interest.

Distribution Of Pteridophytes In Iowa, Tom S. Cooperrider

Proceedings of the Iowa Academy of Science

In 1954 and the early part of this year, in connection with a general study of the pteridophytes of Iowa (1955), the writer made dot distribution maps of the species. The maps were based upon specimens from the herbaria of Iowa State College, Iowa State Teachers College, Grinnell College and the State University of Iowa. The nomenclature and the treatment of the species followed generally that of the New Britton and Brown Illustrated Flora (Gleason, 1952).

Photoperiodism In Oats, S. C. Wiggans, K. J. Frey

Proceedings of the Iowa Academy of Science

Photoperiodic responses of plants have been the subject of many investigations. Garner and Allard (1920) working with soybeans and tobacco found that length of day played an important role in floral development. They further reported (1923) a close relationship between temperature and photoperiod in plant growth. Most of the common species of cultivated plants now have been investigated to determine their photoperiod requirements for flower bud initiation. Extensive literature reviews on this subject have been published by Murneek and Whyte (1948) and Leopold (1951). Although the literature pertaining to the photoperiodic response of certain crop plants such as soybeans, corn, …

An Endospermous Dicotyledon Seed For Botanical Instruction, Richard W. Pohl

Proceedings of the Iowa Academy of Science

Traditionally the castor bean, Ricinus communis L., has been used as a representative endospermous dictotyledon in the study of seed types and germination in elementary botany courses. Such usage occasions great hazard to students, since the seeds are extremely toxic, causing death if taken internally or blindness if rubbed into the eye (Wheeler, 1954). Because of the dangers of the castor bean, Wheeler recommended several legumes which possess endosperm as substitutes. Most of these are either not available in the eastern United States or are rather small for satisfactory use.

The Genus Asclepias In Iowa, Dan Nicolson, Norman H. Russell

Proceedings of the Iowa Academy of Science

The present study was undertaken to provide modern distribution maps and a workable key for the Iowa milkweeds. The genus Asclepias has not been separately studied in Iowa, so far as'' the authors can ascertain. In the most recent Iowa flora, Conard (1951) lists 16 species. In the present work 15 species are recognized. Appreciation is extended to Dr. Robert Thorne and Dr. Richard Pohl for the use of specimens from the herbaria of the State University of Iowa and Iowa State College. In addition, material from the herbarium of Grinnell College has been studied. In all, approximately 1200 sheets …

Natural Forests Of The Edmund Niles Huyck Preserve, New York, Norman H. Russell

Proceedings of the Iowa Academy of Science

The Edmund Niles Huyck Preserve is an area of approximately 470 acres, set aside for scientific study and recreational purposes in 1931, in commemoration of the interests and ideals of Edmund Niles Huyck, a prominent New York industrialist. Since that time the plant life of the Preserve has been kept free from disturbance, other than the clearing of a few paths through the woodlands. Active preservation of this area actually began in 1899 with the acquisition by Mr. Huyck of most of the land immediately surrounding Lake Myosotis. Since the founding of the Preserve, it has been the custom to …