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In Memoriam: Arthur Harold Blue; Ernest Straign Haber; George B. Hartman; George Oscar Hendrickson; William Kunerth; Walter F. Loehwing; William F. Lynch; Gilmour Beyers Macdonald; William B. Zuker

Proceedings of the Iowa Academy of Science

No abstract provided.

Air Ion Densities In A Smoke-Filled Room, Philip J. Lorenz

Proceedings of the Iowa Academy of Science

This study was concerned with the differentiation and measurement of small, intermediate, and large ion densities in a sealed room. It was found that the background density of large negative ions exceeded that of any other class. Under conditions of tobacco smoke pollution, large ions of both positive and negative charge were the major components of the air ion population. This was accompanied by a persistent attrition of high mobility ions both during and after smoking.

Officers And Past Presidents, Iowa Academy Of Science

Proceedings of the Iowa Academy of Science

No abstract provided.

The Bounty System In Iowa, David W. Waller, Paul L. Errington

Proceedings of the Iowa Academy of Science

A study of the history and functioning of the bounty system in Iowa demonstrates the legal weaknesses, costliness, and general ineffectiveness of this method of controlling undesired wildlife. The bounty laws have developed by trial and error. Early laws were simplified and primarily intended for the protection of livestock from the larger predators, notably wolves. After 1900, the program was expanded to include nuisance species and, more recently, in intended behalf of game protection. Bounty rates were changed many times in response to changes in attitudes toward troublesome wildlife and the cost of maintaining the program. Because of bounty frauds, …

1961 Old Gold, Iowa State Teachers College

UNI Yearbooks

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

An Analysis Of An Alternate-Year Walleye Fry Stocking Program In The Cedar River In Iowa, R. E. Clearly, J. K. Mayhew

Proceedings of the Iowa Academy of Science

Year-class analysis of walleye, Stizostedion v. vitreum (Mitchill), taken by anglers in a portion of the Cedar River in Iowa indicated that alternate-year stocking of 3,500 fry per mile of river did not influence year-class abundance. Despite the short duration of the project, 1951-1958, a reasonably direct relationship between spring floods and spring air temperatures and year-class abundance was evident. Disparity in year-class abundance between samples taken 5 miles apart and within 3 months of each other, but by different methods (angling and chemical kill), indicates either a sampling selectivity or a relative discreteness or stability of portions of an …

Field Biology At Algona High School, Summer, 1960, Joe E. Collier, George J. Balluff

Proceedings of the Iowa Academy of Science

The class was made up of seven junior and senior boys who had already successfully completed a regular one-year course in biology. The overall classroom time was 120 hours. Five hours were spent in the school and the remaining time was spent in the field. During the 5-week course, dove banding, wildlife survey of a section of land, gill-netting of fish, vegetation transect, and identification of birds, plants, fish, reptiles, amphibians, and mammals was carried on.

Bryophytes Of Des Moines County, Iowa, Rosemary Thele

Proceedings of the Iowa Academy of Science

The total number of mosses reported in Des Moines County up until April 1, 1961, is 52; the total number of liverworts, 6. Of these, 14 species of mosses are newly recorded in this report. At least 25 more mosses and 5 or 6 more liverworts should be found in this county.

The American School Of Wildlife, Mcgregor, Iowa 1919-1941, Harriet Bell Carlander

Proceedings of the Iowa Academy of Science

46. The American School

The American School of Wildlife Protection was established at McGregor in August, 1919, and continued every summer until 1941. The school grew out of a summer meeting of the Iowa Conservation Association in 1918. This Association and the McGregor Citizens Association set up a five-day session in 1919. The 1920 session lasted one week and all later sessions were two weeks in length. Faculty was drawn from Iowa State College, the State University of Iowa, colleges of the Midwest, and state and federal conservation agencies. Major fields covered were Indian lore, botany, geology, forestry, entomology, and …

Results Of Semi-Controlled Hunting Upon The Harvest Of Waterfowl At Lake Odessa, Iowa, 1960, James G. Sieh, William Aspelmeier

Proceedings of the Iowa Academy of Science

Hunter questionnaire surveys were conducted in 1958 and 1959 to determine the number of pheasant hunters, the total number of birds killed, and the distribution of hunt-pressure in Iowa. A one percent random sample was selected from the current license files. Results indicated that 75.2 percent of the licensees hunted pheasants in 1958 compared to 74.6 percent in 1959. A total of 267,455 hunters bagged 1,548,564 ringnecks in 1958 and 238,903 hunters killed 1,070,285 birds in 1959. Forty to 44 percent of the total season kill occurred during the first two days of the season. Hunter success figures and post-season …

Annual Report Of The Registrar 1960-61, University Of Northern Iowa

Institutional Effectiveness & Planning Documents

Contents:

--- Comparisons Worth Noting
--- Summary of Attendance
--- Attendance by Sessions
--- Degrees Granted
--- Summary of Veterans Attendance
--- Pupils in Price and Affiliated School

Title Page - Front Matter

Proceedings of the Iowa Academy of Science

No abstract provided.

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

Reports - The Board Of Directors; Financial Statement; Staff Reports; Committee Reports

Proceedings of the Iowa Academy of Science

No abstract provided.

Proceedings Of The Seventy-Third Meeting Of The Iowa Academy Of Science Held At Simpson College, Indianola, April 14 And 15, 1961: Minutes Of The 1961 Meeting

Proceedings of the Iowa Academy of Science

No abstract provided.

Fusarium Blight Of Soybeans, John Dunleavy

Proceedings of the Iowa Academy of Science

Fusarium orthoceras produced necrosis of succulent root tissues of soybean seedlings and infected tips of lateral roots of older plants. Pods and seeds were most susceptible to fungus penetration after maturity. High relative humidity was necessary for infection of seeds. Maximum stand reduction and yield loss under field conditions were obtained when seeds were sown in Fusarium-contaminated soil before rains. In a greenhouse the disease was most destructive when plants were grown in soil at 100-percent water-holding capacity at 21° C. The disease was less damaging to plants grown in soil at the same moisture level at 27°. Seedlings grown …

Algae From The Warm Pools Of Silver Lake Fen, Keturah Gashwiler, John D. Dodd

Proceedings of the Iowa Academy of Science

A description of the physical features, including a chemical water analysis, is given. Collections were made during the summer of 1959 and comprise a list of 23 species of algae.

Life History Of The Quillback And Highfin Carpsuckers In The Des Moines River, David Vanicek

Proceedings of the Iowa Academy of Science

An age and growth study was made of 705 quillback, Carpiodes cyprinus, and 399 highfin carpsuckers, C. velifer, taken from the Des Moines River, Boone County, Iowa, from June 1 to August 24, 1960. The length-weight relationship, body-scale relationship and coefficient of condition of these two species are very similar, but the quillback is a larger and faster growing fish. Difficulty was encountered in distinguishing young quillbacks and highfins from the young of the other two species of carpsuckers found in the river.

White And Black Crappies In Clear Lake, Summer, 1960, Richard A. Neal

Proceedings of the Iowa Academy of Science

Studies of white crappie, Pomoxis annularis, and black crappie, Pomoxis nigromaculatus, showed a shift in the population in Clear Lake during the past 10 years from a dominance of black to white crappies. A decrease in the rate of growth of black crappies was shown for this period although the rate of growth of white crappies has remained constant. The food habits of white and black crappies were very similar. The three most important food items were Cladocera, fish, and insect larvae, in that order. Young-of-the-year samples indicated that the trend toward white crappies was continuing. Turbidity was suggested as …

Problems Of Paleontological Preservation In Iowa, W. D. Frankforter

Proceedings of the Iowa Academy of Science

A brief review of vertebrate paleontological work in Iowa reveals an early utilization of fossils in Pleistocene studies followed by a lapse in collecting and research until revived during the past decade. Legal measures enacted to protect paleontological materials have, in the opinion of many paleontologists, resulted in numerous federal and state regulations which are unrealistic and a hindrance to scientific endeavor. Efforts to modify or remove federal rules and regulations governing fossils are discussed. Legal restrictions do not constitute the primary problems of paleontological conservation in many states, including Iowa. Instead, the problems are those of (1) public education …

Electron And Light Microscope Studies Of Endamoeba Terrapinae, Marilyn Driml

Proceedings of the Iowa Academy of Science

This study was restricted to the trophozoite stage of Endamoeba terrapinae. The most striking feature found was lack of cellular components such as are found in Amoeba proteus and the giant amoeba. No structures resembling mitochondria, Golgi bodies, or fat globules were observed. The only defined structures with the exception of the nucleus were vesicles containing bacteria and electron-dense granules. These cytoplasmic components stained lightly with hematoxylin.

Day-Night Changes After Exercise In Body Temperatures And Heart Rates Of Hamsters, G. Edgar Folk Jr., Richard R. Schellinger, Delbert Snyder

Proceedings of the Iowa Academy of Science

A day-night rhythm of body temperature in the golden hamster (Mesocricetus auratus) is described, showing a maximum of about 37.6°C in the night-animal and a minimum which is about l.3°C lower in the day-animal. The day-night difference is still present after forced exercise, indicating that the temperature-regulating mechanism, rather than muscular activity alone, accounts in part for the observed day-night rhythm of body temperature in the hamster. A day-night rhythm of heart rate was also found with a resting midnight level of 457 beats/min, and a resting noon minimum level which is about 45 beats/min lower. Apparently the hamster has …

Experimental And Mathematical Techniques For Kinetic Studies Of Larval Fruit Fly Growth, William J. Moressi, William F. Herrin, Charles C. Wunder

Proceedings of the Iowa Academy of Science

Techniques have been developed in our laboratory which permit the study of growth patterns under a variety of experimental conditions. The experimental subject under investigation is the larva of the common fruit fly Drosophilia melanogaster. Studies involving exposure of the organism to thermal, gravitational, electromagnetic, and magnetic agents have already been conducted. A particular advantage of employing the larvae is that they possess a relatively rapid and simple growth pattern from which experimental constants can be obtained and statistically analyzed. During their 96-hour growth period, the approximate time from the hatching of the egg to pupae formation, the larvae need …

Food Consumption Of Mice During Continual Centrifugation, Charles C. Wunder

Proceedings of the Iowa Academy of Science

High gravity simulated by continual centrifugation can evoke a slower growth with mice and other organisms. For white mice a transient reduction in food intake also occurs and is believed to be, in part, responsible for the reduced growth. Fields as high as 7 G's were employed. Mice of ages which varied from one to seven weeks at the onset of exposure were studied. A more drastic decrement in food consumption occurred with the older mice at higher field intensities.

Some Effects Of Thyroxine-Reserpine Treatment On Growth Of Mice, Lester C. Shell, Louis Farrugia, Danzil Hawes-Davis, Alexander Philip, Tom Merritt, Dan Lock

Proceedings of the Iowa Academy of Science

Thyroxine, reserpine, and a combination of the two drugs were given to white mice over a ten-week period. Effects on growth rate were noted. Data are presented which indicate that a sequence of thyroxine for two days and reserpine for one day, with the sequence repeated over the experimental period, proved to have greatest effect on growth rate.

Information For Authors

Proceedings of the Iowa Academy of Science

No abstract provided.

An Analysis Of The Moral Attitudes Of High School Sophomores And Seniors In The Public Schools Of Cedar Falls, Iowa, Beaumont Roger Hagebak

Dissertations and Theses @ UNI

It has been more than twenty years since G. W. Allport said, "The concept of attitude is possibly the most distinctive and indispensable concept in contemporary American l social psychology." Yet even though two decades have passed his words are still as vital and meaningful as when they were first uttered. The importance of attitudes, of value systems, needs no documentation or proof. We all teel the effects of the attitudes of others, we all affect others by our attitudes, every day of our lives.

A Follow-Up Study Of Ellsworth Junior College Graduates And Students Who Transferred To Baccalaureate Colleges Or Semi-Professional Schools, Eleanor J. Andershok

Dissertations and Theses @ UNI

The junior college is uniquely American and a part of our total educational pattern as evidenced by its growth and progress in the last fifty years. The need to progress and improve is felt by all institutions of education. National educational surveys are made, but they do not reflect the heart of the individual school; they do not point out its individual strengths and weaknesses; they do not indicate the achievement of unique objectives and goals. If the junior college is to improve its educational effectiveness, it can only be done through introspection and self-study.

Trematodes Recovered From Passerine Birds Collected In Chickasaw County, Iowa, (With Notes On Other Avian Helminths), Charles J. Ellis

Dissertations and Theses @ UNI

The present study is a survey of the trematodes found in passerine birds collected in the Goodale Conservation Area of Chickasaw County, Iowa, from October 1959 through August 1960. Non-trematodic infections are reported also.

The Alumnus, V45n4, December 1960, Iowa State Teachers College

The Alumnus

Inside This Issue:

-- Who Will Teach Them
-- Regents Approve Name Change, Broadened Function
-- Sports
-- The Faculty
-- A Trip to the Mineral Water Bowl
-- $295,500 Grant for Academic Year Institute
-- The Alumni