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Relation Of The Wisconsin Drift To The Iowan Drift As Revealed In Worth County, E. J. Cable Jan 1918

Relation Of The Wisconsin Drift To The Iowan Drift As Revealed In Worth County, E. J. Cable

Proceedings of the Iowa Academy of Science

This paper is the result of an attempt to determine, if possible, the relation of the Wisconsin drift to the Iowan drift, not only along the immediate border of the Wisconsin drift, as outlined in the Iowa State Geological Survey Reports, but within the Wisconsin drift plain itself. A careful and detailed investigation was made along the eastern border of the Wisconsin drift from the northern boundary of Worth County, where the eastern edge of the Wisconsin drift enters the state, as far south as Hardin County. Examination of drift cuts, well logs, and a recently excavated coal shaft, located …

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Alpine Structures Of Jasper Park, Charles Keyes Jan 1918

Alpine Structures Of Jasper Park, Charles Keyes

Proceedings of the Iowa Academy of Science

To those of you who are especially interested in the mechanics of mountain building, and particularly to those of you who are teaching the subject of geology I wish to present a few facts concerning some very remarkable expressions of Alpine structures which with diagrammatic clearness are displayed on this side of the Atlantic. For fan-structures, closely appressed flexures, and overturned folds it is customary to turn to distant Switzerland which cannot usually be visited by the student until long after he has left college. The locality to which I have reference is in the region of Jasper Park, in …

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The Ste. Genevieve Marls Near Fort Dodge And Their Fauna, James H. Lees, A. O. Thomas Jan 1918

The Ste. Genevieve Marls Near Fort Dodge And Their Fauna, James H. Lees, A. O. Thomas

Proceedings of the Iowa Academy of Science

In his report on the geology of Webster county F. A. Wilder mentions the presence of a shaly marl rich in fossils, which he includes with the St. Louis limestone. The writers have had the opportunity of examining a number of out crops of these shaly marls and a study of the fossils collected from them has corroborated the conclusion reached, apparently somewhat tentatively, by Weller and Van Tuyl, that they are Ste. Genevieve in age. Because of this determination it seems worthwhile to call attention to the character and distribution of these beds and to their contained fossils.

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Officers, Past Presidents, And Members, Iowa Academy Of Science Jan 1918

Officers, Past Presidents, And Members, Iowa Academy Of Science

Proceedings of the Iowa Academy of Science

No abstract provided.

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The Quakers Of Iowa, Louis Thomas Jones Jan 1918

The Quakers Of Iowa, Louis Thomas Jones

Iowa Book Gallery

According to the author's preface, "In the present work the author has endeavored to present the essential features of the history of the people called the Quakers, from the time of their first appearance in Iowa down to the present time."

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Legal And Political Status Of Women In Iowa, Ruth A. Gallaher Jan 1918

Legal And Political Status Of Women In Iowa, Ruth A. Gallaher

Iowa Book Gallery

The book attempts "to present a general survey of the status of women in Iowa by pointing out the distinctions between men and women which have been established by law or sanctioned by judicial rulings."

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James Hearst Order Of Induction Into Military Service Jan 1918

James Hearst Order Of Induction Into Military Service

James Hearst Documents

The induction paper for James Hearst into service for the United States in October 1918.

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Title Page Jan 1918

Title Page

Proceedings of the Iowa Academy of Science

No abstract provided.

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Proceedings Of The Thirty-Second Annual Session (Of The Iowa Academy Of Science), Held In Ames, April 26 And 27, 1918: Minutes Of The Meeting; Staff & Committee Reports Jan 1918

Proceedings Of The Thirty-Second Annual Session (Of The Iowa Academy Of Science), Held In Ames, April 26 And 27, 1918: Minutes Of The Meeting; Staff & Committee Reports

Proceedings of the Iowa Academy of Science

No abstract provided.

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The President's Address - Does The History Of Science Have A Place In The College Curriculum?, L. S. Ross Jan 1918

The President's Address - Does The History Of Science Have A Place In The College Curriculum?, L. S. Ross

Proceedings of the Iowa Academy of Science

In order to understand a government at any stage of its existence it is necessary to understand how it came to be, what were its antecedents and under what conditions it was developed. In short its inheritance and its environment must he known. No complete understanding of present day civilization is possible without a knowledge of the civilization of the "Men of the Old Stone Age" and of the various phases of man's attempts, failures and successes, between these two stages. In other words the master anatomist and physiologist must be an embryologist. To comprehend and understand the completed structure …

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The Measurement Of Basic Capacities In Motor Control, Carl E. Seashore Jan 1918

The Measurement Of Basic Capacities In Motor Control, Carl E. Seashore

Proceedings of the Iowa Academy of Science

The same principle that led the merchant to adopt the plan of making an inventory of his stock occasionally has led to the introduction of psychological methods in the rating of capacities for various kinds of service. Among these, perhaps the intelligence tests are the best known and most used at the present time, particularly as now employed for the entire United States Army.

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On The Coefficient Of Absorption Of Photoelectrons In Silver And Platinum, Otto Stuhlman Jr. Jan 1918

On The Coefficient Of Absorption Of Photoelectrons In Silver And Platinum, Otto Stuhlman Jr.

Proceedings of the Iowa Academy of Science

The coefficient of absorption can be defined by the constant α in the exponential relation N=N0e-at. The precise physical interpretation of such an exponential law when applied to a beam of electrons moving through a metal plate of thickness "t" is not so simple as its mathematical expression would lead one to suppose. It may, however, lie interpreted if we assume that there exists no "scattering" or energy transformation as the beam of electrons passes through the metal. If α x is taken as that fraction of the number which is absorbed when the beam of …

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Bird Records Of The Past Winter, 1917-1918, In The Upper Missouri Valley, T. C. Stephens Jan 1918

Bird Records Of The Past Winter, 1917-1918, In The Upper Missouri Valley, T. C. Stephens

Proceedings of the Iowa Academy of Science

This report, like the one for the preceding winter, is a composite one. It includes the observations of a number of other field students besides myself. And I wish to acknowledge such assistance from Mr. A. J. Anderson, Mr. A. F. Allen, Mr. G. O. Ludcke, and Mrs. H. M. Bailey, all of whom have done more or less field work during the past winter season.

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An Unusual Example Of Incisor Growth In The Western Fox Squirrel, Dayton Stoner Jan 1918

An Unusual Example Of Incisor Growth In The Western Fox Squirrel, Dayton Stoner

Proceedings of the Iowa Academy of Science

A short time ago a partly broken skull of the Western Fox Squirrel, (Sciurus niger rufiventer (Geoffroy), bearing a curiously formed upper incisor was brought to me for examination by Mr. W. F. Kubichek, now of the Children's Museum, Brooklyn, New York. The animal was evidently an adult and was killed near Homestead, Iowa, November, 1917. The lower mandible as well as the posterior portion of the brain case is missing.

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Pharyngeal Derivates Of Amblystoma, Francis Marsh Baldwin Jan 1918

Pharyngeal Derivates Of Amblystoma, Francis Marsh Baldwin

Proceedings of the Iowa Academy of Science

The recognition, within recent years, of the parts played by certain structures arising from the walls of the human pharynx, in health and disease, renders these bodies of great interest, and hence all facts which throw light upon their morphology are of value. It was from such considerations that the writer under took the study detailed in this paper, for, while a knowledge of their development in amphibia may have no immediate practical value, the close relations of that group to the ancestry of the mammals gives every addition to our knowledge an interest which would not be expected with …

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Notes On The Birds Of South Dakota, With A Preliminary List For Union County, T. C. Stephens Jan 1918

Notes On The Birds Of South Dakota, With A Preliminary List For Union County, T. C. Stephens

Proceedings of the Iowa Academy of Science

This paper is prepared for the primary purpose of publishing a few interesting or unusual records for the state of South Dakota which have been very kindly placed in my possession by Mr. A. J. Anderson, of Sioux City, Iowa. Mr. Anderson, in his professional occupation as a taxidermist, has received many specimens from a radius of two or three hundred miles, and the present paper was conceived for the purpose of placing on record such of these specimens from South Dakota (and two or three from North Dakota) as seemed worthy. At the same time it seemed that it …

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A List Of The Birds Found In Marshall County, Iowa, Ira N. Gabrielson Jan 1918

A List Of The Birds Found In Marshall County, Iowa, Ira N. Gabrielson

Proceedings of the Iowa Academy of Science

During a three years' residence at Marshalltown, Marshall County, Iowa, ending September 15, 1915, the writer spent most of his spare time in a study of the avifauna of the region. Nearly all parts of the county were visited, the area within which most of the work was done being indicated on the accompanying map.

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The Influence Of Floods Upon Animals, D. M. Brumfiel Jan 1918

The Influence Of Floods Upon Animals, D. M. Brumfiel

Proceedings of the Iowa Academy of Science

The attention of the writer was first called directly to this problem by certain observations made along the White Water River, in southeastern Indiana, at the time of the great flood which swept that section of the country in the spring of 1913 —- generally known as the Dayton Flood. The writer was attempting to make collections of insects in the bottom lands of this small tributary of the Ohio river between the downpours of rain on Monday, March 24, 1913, at the time when that particular stream overflowed its banks. The observation that certain forms of animal life were …

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A Long-Lifed Woodboring Beetle, H. E. Jaques Jan 1918

A Long-Lifed Woodboring Beetle, H. E. Jaques

Proceedings of the Iowa Academy of Science

Early in April of 1917, Mrs. C. B. Doe, living in Mt. Pleasant, Iowa, called the writer to her home to see what proved to be a matured larva of a Cerambycid. This white larval form about an inch in length, together with about 50 cc. of wood chewings, had been shaken from a round hole just discovered in one of the pieces of an imitation mahogany book case.

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The Life And Behavior Of The House Spider, H. E. Ewing Jan 1918

The Life And Behavior Of The House Spider, H. E. Ewing

Proceedings of the Iowa Academy of Science

Few species of invertebrates come under our everyday observation more than the common house spider, Theridion tepidariorum K. It is a familiar object in attics and in basements, in cellars and in outhouses of all kinds, in fact it will be found in almost any of the situations where there is shelter and moisture, and where insects may be found in sufficient numbers for food. In looking up the literature relating to this spider the writer was surprised to find that no one, apparently, had worked out its life history or made systematic observations on its habits.

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Notes On The Food Of The Yellow Perch In Cayuga Lake, W. A. Hoffman Jan 1918

Notes On The Food Of The Yellow Perch In Cayuga Lake, W. A. Hoffman

Proceedings of the Iowa Academy of Science

The intention of the writer at the time this study was begun was to make a careful examination of the stomach contents of the yellow perch, Perca flavescens (Mitchill), in its various ages and during the different seasons of the year. For various reasons this program could not be carried out at the time, and no opportunity has been found since.

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Spiders Of The Family Attidae Collected In The Vicinity Of Ames, Iowa, I. L. Ressler Jan 1918

Spiders Of The Family Attidae Collected In The Vicinity Of Ames, Iowa, I. L. Ressler

Proceedings of the Iowa Academy of Science

In this work with the Attidae collected in the vicinity of Ames the writer used Banks' arrangement in the separation of genera and species. A few of the specimens were collected by Prof. C. P. Gillette in 1888-90 and identified by Banks in 1891; some were collected during the summer of 1916 by L. S. Wells while others were collected during the fall of 1916 and spring of 1917 by the writer, who has identified all except those that were collected by Prof. Gillette.

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A Study Of The Formation And Development Of The Flower Buds Of Jonathan And Grimes Golden In Relation To Diferent Types (Clover Sod, Blue Grass Sod, Clover Crop, And Clean Tillage) Of Soil Management, R. S. Kirby Jan 1918

A Study Of The Formation And Development Of The Flower Buds Of Jonathan And Grimes Golden In Relation To Diferent Types (Clover Sod, Blue Grass Sod, Clover Crop, And Clean Tillage) Of Soil Management, R. S. Kirby

Proceedings of the Iowa Academy of Science

The data so far obtained are insufficient to warrant conclusions as to what is true as a rule. This summary simply states briefly what was found during 1916 and 1917 concerning the formation and development of flower buds in these two varieties of apples, growing on plots representing four types of soil management in the Council Bluffs orchard humus Experiments of the Sections of Pomology and Soils of the Iowa Experiment Station.

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The Vegetative Organs Of Some Perennial Grasses, Florence Willey Jan 1918

The Vegetative Organs Of Some Perennial Grasses, Florence Willey

Proceedings of the Iowa Academy of Science

Frequently occasions arise when it is expedient to identify grasses from other than their flower or fruit characterizations. There have been many botanical descriptions of grasses written, but these have been for the most part descriptive, or of hay crops, or briefly given as from the standpoint of distribution. John Percival, in his text book on “Agricultural Botany” gives brief attention to the sheath, ligule and rhizome.

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Notes On The Floristic Features Of A Prairie Province In Central Iowa, Ada Hayden Jan 1918

Notes On The Floristic Features Of A Prairie Province In Central Iowa, Ada Hayden

Proceedings of the Iowa Academy of Science

The primeval prairie of Iowa is fast vanishing. This region where grass grew tall and prairie fires yearly swept over expanses bounded by the horizon or broken here and there by zones of forest along the streams, man, one of the most important of ecological forces, has selected for his permanent habitat. The prairie of former years now lingers in small patches bounded by wire fences and known as hay fields; or where the less ambitious farmer has failed to insert an arterial system of tile, occasional sloughs and swamps furnish homes for hosts of sturdy cattails, slim reeds, plumy …

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Notes On An Introduced Woodland Flora, R. I. Cratty Jan 1918

Notes On An Introduced Woodland Flora, R. I. Cratty

Proceedings of the Iowa Academy of Science

It is seldom that one sees a tract of our original prairie broken up, planted to trees and then left in such a condition that the natural agencies for the distribution of plants are given a free hand in introducing a typical woodland flora. Such, however, was the good fortune of the writer, and a few brief notes regarding the matter may not be devoid of interest to the members of this Academy.

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The Oil In Cherry Pits, Harold L. Maxwell, Nicholas Knight Jan 1918

The Oil In Cherry Pits, Harold L. Maxwell, Nicholas Knight

Proceedings of the Iowa Academy of Science

It has been the subject of much speculation as to how the Germans have been supplied with fats for food and to furnish the glycerine from which the important explosives, dynamite and nitroglycerine, are made. They have been charged with having extracted fat from their enemy dead to be used in making the explosives.

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Pioneer Plants On A New Levee - Iv, Frank E. A. Thone Jan 1918

Pioneer Plants On A New Levee - Iv, Frank E. A. Thone

Proceedings of the Iowa Academy of Science

The present paper is the fourth of a series of brief notes on succession in the vegetation invading the slopes of a new levee in Des Moines, first populated with plants in the spring of 1914. The first three papers recorded the events of the first three seasons, the present will note very briefly the conditions during the fourth.

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A Study Of Certain Green Manure Crops In Making Rock Phosphate Available In Soils, Ross L. Bancroft, B. J. Firkins Jan 1918

A Study Of Certain Green Manure Crops In Making Rock Phosphate Available In Soils, Ross L. Bancroft, B. J. Firkins

Proceedings of the Iowa Academy of Science

At the present time the world is in the midst of the greatest conflict ever staged. The byword on the lips of every thoughtful American is, "Food will win the war." In order that food may be conserved it must first be produced. Therefore, increased crop production must be stimulated. We must produce larger crops upon a given area, that is, intensive farming should be practiced.

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Some Observations On E. C. Kendall's Method Of Estimating Iodine In Thyroid Preparations, S. B. Kuziran Jan 1918

Some Observations On E. C. Kendall's Method Of Estimating Iodine In Thyroid Preparations, S. B. Kuziran

Proceedings of the Iowa Academy of Science

In presenting this short note on Kendall's method of estimating iodine in thyroid preparations, it is perhaps desirable to give a short review of the method. For the details of manipulation of the method the writer recommends a careful study of the original paper.

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