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Some Features Of Iowa Ground Waters, Ii, W. S. Hendrixson

Proceedings of the Iowa Academy of Science

About two years ago the writer read before this body a paper, under the above title, giving a general statement of his work on the quality of Iowa well waters. The accumulating experience of the past two years seems to justify at this time a statement of some additional facts that seem important and which may be of interest to the Iowa Academy of Science.

Significance Of Thrust Planes In The Great Basin Ranges, Charles R. Keyes

Proceedings of the Iowa Academy of Science

For more than a generation no other hypothesis of the rearing of the mountain ranges of the Great Basin has been countenanced except that of simple normal faulting on a gigantic scale. This is the explanation offered by Gilbert. It has its foundation in the observations made by this investigator in the Grand Canyon region of Arizona.

Orotaxial Geologic Correlation And Diastrophism, Charles R. Keyes

Proceedings of the Iowa Academy of Science

Exact stratigraphic correlation is today bothering the geologist more than any other subject relating to earth knowledge. This phase of geology has, indeed, been a constant source of embarrassment ever since the science's birth more than a century and a half ago. A hundred years ago William Smith, an English engineer, discovered the use of organic remains in the determination of the relative ages of rocks; and since his time fossils have been very generally depended upon in unravelling the geologic history of the various parts of the globe.

Evaporation From Tree Water Surfaces, Arthur G. Smith

Proceedings of the Iowa Academy of Science

The very extensive work being done by the United States Reclamation Service in the storing and preserving of the waters of the arid and sub-arid regions of this country, has brought prominently before irrigation engineers the question of the amount of evaporation taking place at different places and under various external conditions.

The Relative Frequency Of Arterio Sclerosis Of The Various Arteries, W. E. Sanders

Proceedings of the Iowa Academy of Science

The present paper is a preliminary report of one phase of a series of arterio sclerotic cases which the author studied during the summer of 1908 while engaged in pathological studies in Berlin and Munich. A brief autopsy report was taken of each case, especial attention being given to the condition of the heart and kidneys.

Some Observations On The Embryology Of Chronomus, W. N. Craven

Proceedings of the Iowa Academy of Science

All the eggs used in the following investigation were collected from a small pond in the eastern edge of the city of Indianola. The eggs were gathered from time to time at intervals of from one to three days, between June 20th and September 30th, 1902. They were found in abundance along the bank, in water from one to six inches deep. Usually they were attached to a piece of wood, or some plant growing in the edge of the water. Many were also found attached to the bottom. A few were found floating in the water, but as by …

Program, Iowa State Normal School, Summer Term, 1908, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

College Catalog And Circular 1908-1909, Iowa State Normal School

UNI Programs and Courses Catalogs

Table of Contents:

Campus Photos
State Board of Control ... 3
Calendar for 1908-1909 ... 4
Faculty ... 6
Faculty Committees 1908-1909 ... 16
Organization of the Work ... 18
Organization of the Faculty ... 20
Rules and Regulations of the Board of Trustees and Faculty ... 22
Faculty Regulations ... 27
Expenses and Fees ... 35
Literary Societies ... 38
Special Certificates ... 40
Training Department in Actual Teaching ... 42
Public Lectures and Entertainments ... 46
Boarding and Lodging ... 47
Regulations Concerning the Management of Work ... 52
The Program of Studies ... 57
The Normal Course …

Summer Term, 1908, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

Program, Iowa State Normal School, Spring Term, 1908, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

Some Relations Of The Older And Younger Tectonics Of The Great Basin Region, Charles R. Keyes

Proceedings of the Iowa Academy of Science

The Basin ranges of western America stand for a distinctive type of mountain-building. Their characteristic structures are regarded as unique because of their extreme simplicity and because their genesis is ascribable to normal faulting on a gigantic scale. Of late years many of the earlier notions concerning the formation of these mountain ranges are being called into question; and the structural problems themselves appear to be farther than ever from satisfactory solution. As landscape features it now seems probable that instead of being regarded as strictly structural phenomena the present mountains are to be considered mainly remnantal erosional effects produced …

Some Protozoa From Fayette, Iowa, Guy West Wilson

Proceedings of the Iowa Academy of Science

During the past autumn several cultures were made from ponds, springs and streams in the vicinity of Fayette for the purpose of providing material for class use. As the number of species of Protozoa represented appeared to be much greater than the author had observed elsewhere, a record of their identity and abundance was kept. A partial result of this work is the present list of thirty-three species, in addition to which several others were observed, but not identified. Inasmuch as Dr. Edmundson's "Protozoa of Iowa" formed the basis of the taxonomic portion of the work, the Euglenidae are included …

A Study In Wing Veination: Family Aphididae, C. E. Bartholomew

Proceedings of the Iowa Academy of Science

The purpose of this paper is to give the results of a study of the wing venation in the family Aphididae with a view of replacing the arbitrary nomenclature as applied to this family by the general nomenclature of wing venation.

Eolian Origin Of Certain Lake Basins Of The Mexican Tableland, Charles R. Keyes

Proceedings of the Iowa Academy of Science

The arid region of western United States and northern Mexico is a vast expanse of plain out of which abruptly rise a multitude of lofty mountains. The landscape has been aptly likened to a sea bedecked with volcanic isles. Of the entire area the desert-plains occupy about four-fifths; the mountains one-fifth. Between the different mountain ranges the plains-surface is usually slightly inclined towards the middle. These intermont plains are commonly designated as valleys.

Stratigraphic Position Of Western Red-Beds, Charles R. Keyes

Proceedings of the Iowa Academy of Science

In Iowa some very important parts of the general Carbonic section are missing. Of these unrepresented portions none is so widely interesting at the present time as the part commonly called the Red-Beds. The very name is itself indicative of the uncertainties surrounding the proper geologic affinities of the formation. Until very recently the Red-Beds formation has been one of the enigmas of American geology. The Red-Beds have steadily resisted all attempts to unravel the secret of their geologic age. The key to the puzzle appears finally to be found in the far-off Mexican tableland.

Notes On The Histological Structure And Specific Gravity Of The Seeds Of Pyrus, L. H. Pammel, Luella Robb

Proceedings of the Iowa Academy of Science

A number of investigators have made a careful study of the seeds of the common quince (Pyrus vulgaris), largely because of its use in connection with medicine and the interest attached to the mucilaginous character of the epidermal cell walls of the outer seed coat. Little attention, however, has been paid to the structure of the seeds of the common apple. Kratzman, Vinton and Moeller, Hill, and Harz call attention to the structure of the testa.

A Case Of The Isolation Of Diphtheria Bacilli From A Post Mortem, L. S. Ross

Proceedings of the Iowa Academy of Science

Records seem to show that diphtheria bacilli are not often found in the blood of the patient, but that they may be occasionally after death. Probably at the time of death the bacilli may enter into the circulation, but not as a usual occurrence. On the 20th of January, 1908, the writer was asked to assist at a post mortem of a child, the cause of death presumably being cerebrospinal meningitis. The post mortem appearances seemed to indicate that as the cause of death. Bacterial cultures were taken from the spinal canal, from the brain and from the serous fluid …

Some Peculiarities In The Elastic Properties Of Certain Substances, K. E. Guthe

Proceedings of the Iowa Academy of Science

All solids deviate more or less from the theoretical perfectly elastic body and though many experiments have been undertaken in order to explain these deviations, we can hardly claim that any of the numerous theories proposed by the different investigators has yet cleared up the intricate relations involved.

Proceedings Of The Twenty-Second Annual Session Of The Iowa Academy Of Science: Staff & Committee Reports; Program, L. S. Ross

Proceedings of the Iowa Academy of Science

No abstract provided.

President's Address - Science Required For A General Education, John L. Tilton

Proceedings of the Iowa Academy of Science

At first I thought that for this occasion I would prepare a paper on one of the important lines of recent scientific discussion. After the kind acceptance by Professor Chamberlin of our invitation to address us this evening I gave up all intention of preparing a paper, thinking that the address which we are about to hear would render the presentation of a related subject by me undesirable; but when I found that the omission of a paper styled the "Presidential Address" would be considered an unacceptable "innovation , " I immediately decided to present briefly a pedagogical question which …

A Retrospect Of Sixty Years, Josiah L. Pickard

History of Education Book Gallery

Josiah Little Pickard (March 12, 1824-March 28, 1914) was the Superintendent of Public Instruction of Wisconsin, 1860-1864, and the sixth President of the University of Iowa, 1878-1887.

Title Page - Letter Of Transmittal, L. S. Ross

Proceedings of the Iowa Academy of Science

No abstract provided.

The Determination Of Ferrous Iron, Nicholas Knight

Proceedings of the Iowa Academy of Science

Robert Mauzelius, in the Geological Survey of Sweden (Sveriges Geol. Underseekning), calls attention to a universal defect in the estimation of ferrous iron in minerals and rocks. He finds that a considerable error arises from grinding the rock in the ordinary way to a fine powder, owing to the oxidation of ferrous to ferric iron. If the specimen is reduced to a coarse powder instead of being finely pulverized, a more accurate result is attainable. This source of error has hitherto escaped the attention of analysts.

Program, Iowa State Normal School, Winter Term, 1907-08, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

The Solar Surface During The Past Five Years - A Review Of Sunspot Observations Made At Alta, Iowa, From 1903 To 1907, David E. Hadden

Proceedings of the Iowa Academy of Science

The present paper is a continuation of a series of sun-spot observations contributed to the Iowa Academy of Sciences at the annual session in December, 1902. For the purpose of representing graphically the resulting curve of the sunspot cycle which now embraces two maxima and one minimum the numerical summaries of the seventeen year's observations have been plotted. The instruments used were a 4-inch refractor until August, 1907, and after that time a 5½ inch refractor, an 8-inch reflector was also employed and a polarizing eyepiece magnifying about 80 was principally used.

Some Iowa Waters, Nicholas Knight

Proceedings of the Iowa Academy of Science

A chemical analysis of several water sources within Iowa.

Determination Of The Charge Of An Electron By Wilson's Method, Using Radium, L. Begeman

Proceedings of the Iowa Academy of Science

The following discussion of the experimental determination of the charge e of an electron may prove interesting inasmuch as the conditions of the experiment were in many respects more favorable than those of previous attempts. As is generally known, determinations of e have been made by J.J. Thomson and H.A. Wilson at the Cavendish-laboratory, England. Their methods were quite different, although both obtained their data from observations of ionized clouds produced by the rapid expansion of supersaturated air in a fog chamber.

Index; Author's Index

Proceedings of the Iowa Academy of Science

No abstract provided.

Back Cover - Iowa Academy Of Science Officers And Directors

Proceedings of the Iowa Academy of Science

No abstract provided.

Some Forestry Problems Of The Prairies Of The Middle West, Hugh P. Baker

Proceedings of the Iowa Academy of Science

A residence of several years in one of the central prairie states and two seasons spent in studying natural conditions through a belt of prairie country from the Mississippi to the foothills of the Rockies makes me feel that the problems of prairie forestry are not only intensely interesting, but that their early solution will be of vast importance to the future agricultural and commercial development of the entire middle West.