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Oneota Conodonts, W. M. Furnish

Proceedings of the Iowa Academy of Science

Recently discovered Conodonts in the Oneota formation of Iowa are illustrated and their stratigraphic significance is discussed.

Subsurface Correlation In Iowa, A. C. Tester

Proceedings of the Iowa Academy of Science

Much new information concerning the underground geology of Iowa is being accumulated by the Iowa Geological Survey. Greater enthusiasm on the part of well contractors, municipalities, and the public in general has made it possible to obtain and study accurate sets of well cuttings from several widely distributed deep wells. The record and correlation of formations encountered in wells at Fort Dodge, Jefferson, Lenox, Ottumwa, Clinton, Dubuque, and Decorah are discussed in this paper. By the more detailed studies possible at this time, correlations of several key members have been made.

The Presence Of A "Nebenkern" In Coprinus Atramentarius, J. E. Sass

Proceedings of the Iowa Academy of Science

The writer had demonstrated that Coprinus sterquilinus contains an extra-nuclear mechanism which bears structural homologies with the Golgi apparatus in animal spermatocytes. Numerous other Hymenomycetes have been examined. Coprinus atramentarius contains a distinct Nebenkern sphere, consisting of a large hyaline sphere, in which there are peripheral, chromophilic granules. This body is most distinct just before the meiotic division of the fusion nucleus occurs. It is probable that the sterigmatic bodies described by various workers, are derived from this Golgi apparatus, rather than from the centrosomes.

Rate Of Ice Withdrawal During The Last Glacial Epoch In Iowa, Charles Keyes

Proceedings of the Iowa Academy of Science

Calculated upon the basis of Bruckner climatological cycle of 33 years, the retreat of the Des Moines lobe from its tip to its Keewatin center of dispersion, in Canada, west of Hudson Bay, seems to be reflected in the recessional moraines. The past winter's excessive snows, below-normal temperatures, and long stormy season, displays something of the conditions which would naturally retard for a few years glacier waning, and throw up terminal moraines at the time of the pauses. Only such unusual conditions would be greatly intensified in front of a great ice margin.

Current Early Paleozoic Classification In Iowa, A. C. Trowbridge

Proceedings of the Iowa Academy of Science

Presentation and discussion of a classification of Cambrian, Ordovician, and Silurian strata recently adopted by the Iowa Geological Survey for use in this state.

Some Notes On The Religion Of The Indians, Albert B. Reagan

Proceedings of the Iowa Academy of Science

To a great extent religion determines the advancement that any people makes, and the Indian was no exception in this connection. The writer wishes to explain that he is to deal only with our Indians as found by the Europeans following the discovery by Columbus, and hence is not called on to consider or discuss the claims of the higher systems of religion, and consequently all special questions, such as, the inspiration and infallibility of the Bible, are entirely foreign to his purpose. He is here presenting the facts as found by him and other scientists, leaving the conclusions for …

Magnetic Velocity Analysis Of Potassium Atoms Scattered By A Magnesium Oxide Crystal, Alexander Ellett, Victor W. Cohen

Proceedings of the Iowa Academy of Science

A beam of neutral potassium atoms is directed to the surface of an MgO crystal, incident at an adjustable angle of from 20 to 80 degrees. Perpendicular to this beam is a slit system which defines a second beam of atoms which have been scattered by the crystal. This second beam is directed to the region between a pair of Stern-Gerlach magnet pole pieces. The intensity of the beam is measured by means of a Langmuir-Taylor surface ionization detector.

Application Of Metal Spraying To The Construction Of A High Voltage Condenser, R. D. Huntoon

Proceedings of the Iowa Academy of Science

In the construction of a high voltage condenser of the glass plate type it is necessary to coat relatively large areas (60 square yards in this case) with a smooth conducting layer well bonded to the glass. Spraying molten aluminum directly onto the surface was tried and found to give a suitable coating. A description of the commercial Metal-Spray apparatus will be given and samples of the sprayed glass presented. Such factors as preparation of the surface, spraying technique, adhesion of the film, electrical resistance of the coating, and the effect of the heat on the glass will be discussed.

Psychology Of The Emotions - Practical Aspects For The Teacher, E. G. Lockhart

Proceedings of the Iowa Academy of Science

Basic Facts about the Emotions:

1. The organic changes that characterize the emotional disturbance are intellectually stimulated - a crucial fact when we come to teach the control of the emotions.

Common And Differential Factors In Reading Vocabulary And Hearing Vocabulary, Irving H. Anderson, Grant Fairbanks

Proceedings of the Iowa Academy of Science

Numerous studies have shown that recognition of word meaning is closely related to reading ability. All of these studies, however, measured reading vocabulary only. This research attempts to determine how recognition of read and heard words compares, and how the two types of vocabulary are related to reading ability. Since material is held constant, but the mode of presentation is varied, this approach should make possible the study of certain common and specific elements in the abilities to recognize words read and heard, and to determine the manner in which this relationship is affected by reading ability.

On Teaching The Vernier Caliper, C. J. Lapp

Proceedings of the Iowa Academy of Science

Fifty students divided into twenty-five pairs were studied. Twenty-five of them were taught by the usual method in laboratory while twenty-five were given instruction on the vernier caliper in the library. The following week both groups were given an actual performance examination. The results are surprising.

Identification Of Hydrazones And Isomeric Pyrazolines Obtained From Α, Ss-Unsaturated Ketones, Walter J. Peterson, L. Chas. Raiford

Proceedings of the Iowa Academy of Science

To date there are but two methods for distinguishing between these compounds. The first involves the reduction of the hydrazone with sodium amalgam to give aniline and the corresponding aliphatic amine. The yields are low and many cases tried have given negative results. The pyrazolines do not suffer this change. The second method is based on the fact that many of these hydrazones are rearranged by boiling acetic acid to the isomeric pyrazolines. If, in this way, the compound in question is converted into a new product, the latter is probably, but not certainly, a pyrazoline. If the latter can …

The Cenozoic History Of The Upper Mississippi River, A. C. Trowbridge

Proceedings of the Iowa Academy of Science

Changes in the course of the Mississippi River caused by successive glacial invasions are described. Recently discovered evidence is presented bearing on the establishment of the general course of the River between Iowa and Wisconsin and Iowa and Illinois in Nebraskan time. There are also some rock terraces believed to indicate the approximate depth to which the valley had been cut by Kansan time. The Illinoian history of the river and of Lake Calvin are reviewed. The details of the present course of the river involve the definition and partial subsequent removal of Wisconsin glacio-fluvial material.

The Adjustment Problems Of College Freshman And Contributory Factors, Earle E. Emme

Proceedings of the Iowa Academy of Science

There were 5,959 adjustment problems discovered from 73 freshmen.

The Decomposition Of 4(X^P-1)/(X-1), Cornelius Gouwens

Proceedings of the Iowa Academy of Science

If 4X = 4(x^P-1)/(x-1) where p is an odd prime then 4X = Y²-(-1)^(P-1)/2 pZ², where Y and Z are polynomials in x with integral coefficients. For p = 37 we find the decomposition cited in "Recherches sur la theorie des nombres" by M. Kraitchik (1924) p. 126. For 37 ≤ p ≤ 61 the decomposition is given by Pocklington in "Nature," VoL 107 (1921) pp. 456 and 587. For 67 ≤ p ≤ 97 the results are given by Gouwens in "The Mathematical Monthly, Vol. 43, (1936) page 283. Herewith are presented …

A General Outline Of A Universal Frequency Meter, D. O. Mccoy, G. W. Fox

Proceedings of the Iowa Academy of Science

Some of the considerations encountered in the design and construction of a universal frequency meter will be presented. The standard frequency is generated by the use of a 100,000 cycle AT cut quartz crystal plate. The method used in producing this plate will be described.

The Effect Of Ultracentrifuging On The Respiration Activity Of Developing And Blocked Embryonic Cells, Joseph Hall Bodine, Edgar J. Boell

Proceedings of the Iowa Academy of Science

The Effect of Ultracentrifuging on the respiration Activity of Developing and Blocked Embryonic Cells

In Memoriam: Charles Sherman Cobb; Elbert William Rockwood; Franklin Scott Wilkins; Alonzo A. Miller; James H. Lees, T. C. Stephens, J. N. Pearce, H. D. Hughes, W. A. Hauber, E. J. Cable

Proceedings of the Iowa Academy of Science

No abstract provided.

A Preliminary Report On A Study Of Floral Societies In A Railroad Switchyard, Charles Gilly

Proceedings of the Iowa Academy of Science

For three years observations have been made on the floras of a number of small localities in the vicinity of Fairfield, Iowa. One of the most interesting of these places is the combined switchyards of the C. B. & Q. and the C.R. I. & P. railroads.

The Influence Of L- And Dl-Tryptophane And Kynurenic Acid Administration On Bile Volume And Composition, John T. Correll, Clarence P. Berg, Donald W. Cowan

Proceedings of the Iowa Academy of Science

We have undertaken to determine whether kynurenic acid production or excretion in the bile (as reported by Kotake and Ichihara) might be responsible, at least in part, for the choleretic effect of tryptophane. We have also studied the influence of optical configuration of tryptophane on bile volume and on bile salt output, both of which Whipple and Smith found were increased by l-tryptophane administration.

Pennsylvanian Stratigraphy In The Southern Wasatch Mountains, Utah, H. J. Bissell

Proceedings of the Iowa Academy of Science

The area under consideration has a dimension of 8 miles east-west and 4 miles north-south, and includes the canyons of Spring Creek and Hobble Creek, Utah County, Utah. These streams flow off the west flank of a southern portion of the Wasatch Range, and have cut canyons to a depth of over 3,000 feet, exposing sections of upper Paleozoic sediments. Pennsylvanian rocks in the vicinity of the southern Wasatch Mountains have received little attention from stratigraphers. In this paper an attempt is made to describe the sequence of Pennsylvanian rocks in the region.

College Catalog 1935-1936, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents

College Calendar for the Year 1936-37 ... 5
State Board of Education ... 6
Officers of Administration ... 7
Officers of Instruction ... 8
Other Officers and Assistants ... 16
Faculty Committees ... 19
General Information
Historical Sketch ... 22
Buildings and Grounds ... 22
Enrollment and Registration ... 25
Fees ... 26
The College Dormitories ... 27
Accredited Rooming Houses ... 28
Employment of Students ... 28
Student Loan Fund ... 28
Student Organization ... 29
Control of Extra-Curricular Activitie ... 30
Placement Bureau ... 30
General Regulations
Entrance Requirements ... 31
Admission with Advanced Standing …

A Genetic Study Of The Vibrato, Alan D. Grinsted

Proceedings of the Iowa Academy of Science

The question of whether or not the vibrato, which is found in the singing voice of all vocal artists and of some untrained adults, and occasionally in the speaking voice, is learned, or is due to some inborn physiological characteristic is one which has been the subject of considerable speculation. Upon this question rest the answers to such questions as these: Will there come a day when voices with vibrato will not be considered beautiful? Should the vibrato be expected to appear automatically when a student of singing learns to vocalize properly or is there a special technique to be …

A Study Of Drouth Recovery, And Seasonal Succession In A Pond (Preliminary Study), Malcolm Mcdonald

Proceedings of the Iowa Academy of Science

A study was made comparing the fauna and flora of a southeastern Iowa pond during the years 1933 to 1935, inclusive; that is during a complete cycle from conditions of abundance of rain and ground water to a very arid condition of drouth and then back again. With this was combined a study of the development and change in fauna during the period from March to June, 1935.

Relation Of Light To The Growth And Movement Of Plants (Address To The Academy), William J. Robbins

Proceedings of the Iowa Academy of Science

At the meetings of the American Association for the Advancement of Science held at St. Louis last Christmas, the $1000 prize for the most outstanding paper presented at the meetings was awarded to Dr. P. W. Zimmerman and Dr. A. E. Hitchcock of the Boyce Thompson Institute. The paper for which they received the prize dealt with the results of their experiments on the effect of various chemical substances on the local initiation of adventitous roots on stems and leaves, proliferation, the swelling and bending of stems, the acceleration of growth and epinasty. Certain chemical substances including ß indoleacetic acid, …

The Microfossil Succession In A Bog In Northern Wisconsin, Eleanor Glloway

Proceedings of the Iowa Academy of Science

A stratigraphical and statistical study was made of the microfossils in the marginal mat of a bog lake located near the Limnological Laboratories of the Wisconsin Geological and Natural History Survey at Trout Lake, Wisconsin. The fossils indicate that the regional flora was dominated, early in its history by a gymnosperm element, but was gradually replaced by angiosperms. The use of microfossils in determining the vertical distribution of limnic sediments in bog deposits was found to be an accurate method. The fossils used in this connection were sponge spicules and internal leaf trichomes of water lilies.

The Heat Capacity And The Free Energy Of Formation Of Pyridine, J. N. Pearce, H. M. Bakke

Proceedings of the Iowa Academy of Science

The free energy of formation of pyridine may be calculated from the entropies and the heats of combustion of pyridine and the elements of which it is composed. To determine the entropy of pyridine at 298.1°K. it was necessary to measure its heat capacity over the temperature range, 90° to 298.1°K., its heat of fusion, and its melting point, the remaining data being available in the literature.

Electrokinetic Potentials At Liquid Surfaces, W. G. Eversole, F. S. Thomas

Proceedings of the Iowa Academy of Science

Aqueous solutions of potassium chloride were allowed to flow through air. The solutions were from 10^-1 N. to 10^-7 N. The hydrostatic pressure was from 17 to 22 cm. of solution. The flow was vertical and laminar, through a circular aperture in a thin platinum disc on to a second platinum disc. The diameter of the aperture was 0.05 cm. The discs served as electrodes. The potential difference was measured with a vacuum tube potentiometer. The floating grid method was used, so the potential difference was measured with essentially no current flow. The values obtained were similar to …

Greater Des Moines River During Waning Glaciation, Charles Keyes

Proceedings of the Iowa Academy of Science

With the lower Minnesota valley blocked with ice, drainage from the waning Keewatin glacier, in southern Minnesota, would naturally be released into the Des Moines River, as indicated by the deep, gorge-like valley of the present stream above Des Moines City. Some recent observations on this phase of Iowa drainage are explained and charts presented. A now filled ancient channel is to be sought along the line of former long prairie lakes and the Blue Earth River, which in pioneer days formed part of the canoe-route of the trappers, from the head-waters of the Saskatchewan, in the Canadian Rockies, to …

A Statistical Study Of Attitudes, A. R. Lauer

Proceedings of the Iowa Academy of Science

An attitude test covering seven major attitudes, established on a priori grounds, was given to 165 adult male subjects in industrial plants. Included are attitudes toward traffic regulations and enforcement; risk and annoyance; socialistic, communistic and conventional principles; racial and religious attitudes; conformist attitudes; and those relating to sports. The reliabilities of the attitude groupings range from .86 down to .55. Intercorrelations of these items indicate grouping into a smaller number of factors. A comparison is made between accident and non-accident drivers on significant attitudes.