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Observations On A Hen Possessing Some Structural Doubling And Limited Cock Characters, R. G. Schott, V. Curtis

Proceedings of the Iowa Academy of Science

Cases of adult hens showing cock characters have been studied extensively, but doubling of structure is seldom found beyond the embryonic stages. This case of a White Leghorn hen is of interest not only in that she carried some cock characters while laying normal eggs, but also in that she possessed some marked anomalies that are indicative of irregular embryonic development. The Poultry Husbandry department, Iowa State College, gave this particular hen to the Genetics department in the spring of 1927. She had been sent to the college by an Iowa farmer some time previously. From Nov. 20, 1927, to …

The Pubescence Of Lithospermum Canescens And L. Gmelini, Henry S. Conard, Cornelia Clarke

Proceedings of the Iowa Academy of Science

Of the two short-tubed orange-yellow Puccoons of central Iowa, L. canescens is found on every remaining fragment of upland prairie. It is completely destroyed by the first cultivation, and is rapidly depleted near towns by flower-lovers looking for the first spring blossoms. On bluffs of exposed loess soil we find rather rarely L. Gmelini. When the two are side by side they are easily distinguished by the pubescence of the leaves. That of L. canescens is noticeably finer and more copious than that of L. Gmelini. Each hair of the latter also stands on a tiny colorless papilla.

The Pyrenomycetes Or Black Fungi Of Iowa, Jessie A. Parish

Proceedings of the Iowa Academy of Science

The Pyrenomycetes constitute a large and generally well-marked section of the Ascomycetous Fungi. If we omit here the Perisporiales as an order by itself we may say of the Pyrenomycetes that there are perhaps 10,000 species, grouped in many genera, families, etc., but generally all set out in three suborders, the Sphariales, Dothideales and Hypocreales. The first two suborders named include by far the greater number of species and are in fruiting black, Pyrenos proper; the third suborder, the Hypocreales, have fructifications corresponding in structure to true Pyrenos but in color assume various tints red, yellow, etc., never black.

1928 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.

The Address Of The President - Atomicity In Physical Nature, Leroy D. Weld

Proceedings of the Iowa Academy of Science

Atomicity in Physical Nature-From the earliest times men have been curious about the makeup of material things and the mechanism of visible processes. When Empedocles reasoned that all change is merely a rearrangement of permanent, unchangeable parts - an idea which the YAtomists and Anaxagoras later elaborated in greater detail - he merely gave expression to what seems to be an intuitive conviction about Nature in general. Anaxagoras recognized the existence of atoms and the fact that there are different kinds of atoms; and he furthermore introduced the grotesque idea of atoms endowed with intelligence, by way of accounting for …

Further Studies Of The Germination And Juvenile Forms Of Some Trees And Woody Shrubs, 1927, L. H. Pammel, C. M. King

Proceedings of the Iowa Academy of Science

A number of papers upon the germination of trees and shrubs have recently appeared, of which a few may be herein noted. P. W. Zimmerman of Boyce-Thompson Institute, in discussing influences affecting germination, calls attention to the early development of the embryo of the soft maple, while in the gingko the seed falls before the fertilization of the ovule has occurred. Notes upon the influence of drying and extreme temperatures upon many seeds are also recorded. Delayed germination in cases of rose, apple, hawthorn, cotoneaster, basswood and some junipers is attributed by him to immature embryos and hard seed coats.

Inheritance Of Shape In Tomato Fruits, E. W. Lindstrom

Proceedings of the Iowa Academy of Science

Ovate fruit is determined by a major recessive gene located in the first chromosome of the tomato. It is allelomorphic to both the round and the oblate types. These in turn are differentiated by a main factor and are allelomorphic to each other. This suggests a multiple allelomorphic series of genes controlling the oblate, round and ovate fruit shapes. Ovate shape (when contrasted with oblate) shows linked inheritance with dwarf growth habit, there being approximately ten or eleven per cent crossing over. There is also close linkage between ovate shape and the peach character of the fruit. High positive correlation …

The Reaction Of Nitrogen Trichloride With Unsaturated Acids, George H. Coleman, G. M. Mullins

Proceedings of the Iowa Academy of Science

Nitrogen trichloride reacts with crotonic acid in carbon tetrachloride solution slowly at 25° to form nitrogen, chlorine and the hydrochloride of chloro-aminobutyric acid. On reduction with sodium amalgam this product yields β-aminobutyric acid. A similar reaction occurs with cinnamic acid.

The Use Of The Words Heart, Mind, Soul And Spirit, O. M. Norlie

Proceedings of the Iowa Academy of Science

This paper is a study of how often and in what ways the words heart, mind, soul and spirit are used. They are very familiar words, so familiar that they have lost much of their original meanings. They are often used with great looseness and overload the sentence in the form of tautology or verbosity, burying the thought beneath their rubbish.

Oxygen Consumption At 20° In Certain Snakes Pituophis Sayi And Lampropeltis Getulus Holbrooki With Some Notes On Size And Seasonal Difference, Francis M. Baldwin

Proceedings of the Iowa Academy of Science

Before this section of the Academy last year data were presented on the rate of oxygen consumption in certain turtles, which were interpreted to represent both "basal" and "active" rates in these forms. Data on these points were thought to be of some value in connection with the question as to whether a beginning or a remnant of a heat-regulatory mechanism might not be found in this representative of the reptilian group. While it is the hope of the writer to continue the investigations with the turtles, it so happened that specimens of the snakes in Professor Guthrie's collection were …

Water Softening For Municipalities, Edward Bartow

Proceedings of the Iowa Academy of Science

The first municipal water softening plant in the United States was put into operation on December 28, 1903, at Oberlin, Ohio. A plant was in operation in Winnipeg, Canada, at that time, but it was given up because the supply was too small and because of the scale formation in the water works system.

A Summary Of The Facts And A Restatement Of The Theory Of Sound Localization, Otis C. Trimble

Proceedings of the Iowa Academy of Science

Experimentation has repeatedly demonstrated that phase, time and intensity, as physical variants, function in much the same manner in determining the directional localization of sound. Their "effects" are alike; the relationship of the angular displacement to the differences in the stimuli in each case is approximately the same; each factor has its optimal effectiveness; the very slight differences in the stimuli in each case are not perceived as differences in phase, time and intensity as such; and each factor may modify the effectiveness of the others. But, in the complex conditions of ordinary hearing, does either of these factors predominate …

Teaching Of Biology In Junior Colleges And High Schools, L. H. Pammel

Proceedings of the Iowa Academy of Science

Not very long ago I was in the city of Decatur, Illinois, where I made a little talk on the subject of conservation to the students in botany. I asked the instructor in charge of the work in the high school about the teaching of biology and he promptly said, "We have not changed our plan of teaching Botany in the high school. We are following the old method of giving a strong course in botany and one in zoology, and we believe that these courses fit the needs of our students better than general courses in biology or in …

The Cicatrization Of Wounded Citrus Leaves, Robert B. Wylie

Proceedings of the Iowa Academy of Science

Since the independent plant must expose green tissues to light, massive opaque coverings may not be employed by foliage leaves. Their exposed position and necessarily delicate structure render them peculiarly liable to injury. The writer has been interested in noting some of the responses of foliage leaves to injuries. A paper now in press summarizes the literature of this subject and describes the healing structures developed by certain mesophytic leaves following wounding.

Velocity Of Cadmium Atoms Regularly Reflected From A Rock Salt Crystal, A. Ellett, H. F. Olson

Proceedings of the Iowa Academy of Science

We have previously shown that a beam of Cadmium atoms incident upon a cleavage face of a rock salt crystal is reflected so that the incident and reflected beams make equal angles with the normal to the crystal surface. At that time we suggested that this phenomenon could be interpreted in terms of the phase waves of de Broglie. The existence of a reflected beam making the same angle with the normal as does the incident beam suggests at once the possibility that we have here a situation in which the phase waves behave as X-rays do in the Bragg …

A Study Of The Duration Of Fertility In Poultry, V. Curtis

Proceedings of the Iowa Academy of Science

A question that no doubt has occurred to many zoologists is that of the duration of fertility in fowls. The phases of that question included in this report are: the length of time elapsing from mating to laying of the first fertile egg, the length of time that a hen will lay fertile eggs from a single mating, and the effects of more than one mating on fertile production using the same male or two males of different breeds (cross breeding).

A Recount Of The Baltimore Orioles Nesting In Mount Pleasant, Iowa, H. E. Jaques

Proceedings of the Iowa Academy of Science

During the winter of 1920 and 1921 a count was made of the Baltimore oriole nests to be found in the trees within the city limits of Mount Pleasant as published in the proceedings of the Iowa Academy of Science. A recount was made during February of 1927 for comparison with the first census taken six years earlier.

Studies On The Germination Of Pumpkin Pollen, Edward F. Castetter

Proceedings of the Iowa Academy of Science

Attempts have been made to germinate the pollen of Cucurbita pepo and Cucurbita moschata on artificial media. Various combinations of sugars and agar dissolved in distilled water were first used. It was found that two grams of agar and 14 grams of sucrose in 100 cc. of solution gave the best results, 10 per cent germination being obtained.

Eastward Extension Of Ancestral Rocky Mountains Geosyncline Into Iowa, Charles Keyes

Proceedings of the Iowa Academy of Science

Despite the circumstance that in the Iowa part of the Great Plains, lying between the Mississippi River and the Rocky Mountains, the deep well-drillings usually sink only to that famed aquifer, or artesian reservoir, the Peter sandstone, the ancient crystalline basement beneath all of the tall column of sedimentaries is entered in a number of instances. Touching the deeply buried pre-Cambric rocks in the northeastern part of the State is not so surprising inasmuch as soon beyond our boundaries these crystallines rise to the surface.

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

Ubi Facit Ibi Est, John A. Eldridge

Proceedings of the Iowa Academy of Science

Where a thing acts there it is. In place of the old dogma of Descartes, "Cogito ergo sum," the modern pragmatist says that a thing exists if it affects us; we have an objective rather than subjective philosophy.

New Developments In The Tonoscope: Measurements On Correct Intonation In Singing, H. M. Williams

Proceedings of the Iowa Academy of Science

A new modification of the Seashore tonoscope has been developed, similar to the phonograph form already described, using the phonograph motor as a source of power but having a new scale which covers a whole octave, in steps of tenths of a tone. The instrument may be read in terms of twentieths of a tone. These units were chosen because they are close to the sensory limits for interval discrimination and because such units are comparable from one octave to another.

X-Ray Diffraction In Liquids: Isomers Of Normal Heptane, G. W. Stewart

Proceedings of the Iowa Academy of Science

The following isomers of normal heptane were kindly supplied by the Ethyl Gasoline Corporation: 3-3, 2-2, 2-3 and 2-4 dimethyl pentane, 3 ethyl pentane, 3 methyl hexane, 2 methyl hexane, 2-2-3 trimethyl butane.

Heat Flow In The Finite Cylinder With Variable Surface Temperature, Geo. E. Thompson

Proceedings of the Iowa Academy of Science

If heat be supplied at a constant rate to a liquid which is kept at uniform temperature throughout by stirring, and if this liquid lose heat according to Newton's law of cooling, we get dΘ/dt = β/C – αΘ for the differential equation from which to obtain the temperature, Θ, as a function of time. β/_c is the rate of heat supply divided by thermal capacity and a Θ the rate of cooling. The surrounding medium is assumed to be at zero temperature. This equation is equally valid if the liquid be replaced by a solid of very high …

Report Of An Intelligence Survey Of The State Training School For Girls At Mitchellville, Iowa, Gladys Palmer

Proceedings of the Iowa Academy of Science

At the request of Miss Ray M. Hanchett, Superintendent of the Girls Training School at Mitchellville, an intelligence survey of the institution was undertaken last December. The writer went to Mitchellville and spent from December 2 to 20, 1927, there, living in Cottage No. 1, where the negro girls, then thirteen in number, were housed.

How Shall We Treat Our State Parks?, B. Shimek

Proceedings of the Iowa Academy of Science

The law creating state parks in Iowa specifically provides for the preservation of areas of historic or scientific interest, or possessing scenic beauty, and not alone for recreation purposes. It was never contemplated or expected that any one of the state parks would meet all of the requirements indicated, but that each purpose would be served by some, or parts of some of the areas selected. There is a growing tendency to regard both our national and state parks as mere recreation or picnic grounds, and their value is being measured in many quarters merely by the numbers of visitors.

The Chemical Composition Of The Burlington Limeston Near Oakville, Iowa, Nicholas Knight

Proceedings of the Iowa Academy of Science

An analysis of four specimens of Burlington limestone from near Oakville, Louisa County, was recently made in the chemical laboratories of Cornell College. The rock is hard, compact and crystalline in structure. There seems to be a pure white variety and one with a decided tinge of yellow. We were surprised at the small percentage of magnesium in all the specimens analyzed.

The Increase In Temperature And Weight Of Young House Wrens, Dayton Stoner

Proceedings of the Iowa Academy of Science

In the course of banding operations and certain special studies on the life history, habits, temperature and other features of the Bank Swallow conducted in the Okoboji region, northwestern Iowa, during the past few summers, occasional opportunity was offered for similar investigations in connection with the House Wren, Troglodytes a.aedon.

College Circular [Catalog] 1928, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents

Calendar for 1928-29 ... 5
Officers of Administration and Instruction ... 6
Faculty ... 7
General Information ... 46
Plan of Organization ... 46
Expenses and Fees ... 47
Scholarships ... 49
Extension Service ... 49
College Organizations ... 49
Faculty Organizations ... 50
Training in Actual Teaching ... 51
Public Lectures and Entertainments ... 51
Boarding and Lodging ... 51
Employment of Students ... 33
Twelve Weeks Normal Training ... 53
School Credits in Lieu of Certificate Examinations ... 53
Examinations for Teachers Certificates ... 54
Bureau of Recommendations ... 54
Advisers and Amount of Work …

Tornado As It Passed Glenwood, Paul S. Rowe

Proceedings of the Iowa Academy of Science

All afternoon (June 2, 1925) there had been a hard southeast wind. During the day we had several small showers. From three o'clock till we quit at five, my brother Porter's team begged by action to come home. Just after he unhitched the team he saw falling leaves and twigs. So he looked for a twister. A moment later he yelled "There's a cyclone!" "There's two of them!" "Ah hoooraa" (his call).