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Unusual Dolomites, Nicholas Knight

Proceedings of the Iowa Academy of Science

The rock formation of Northeast Iowa belongs to the Niagaran period and is dolomitic in character. The various layers show slight differences, but, on the whole, they are typical dolomites, having the formula CaCO₃, MgCO₃.

Earth Movements And Drainage Lines In Iowa, James H. Lees

Proceedings of the Iowa Academy of Science

It is well known that several systems of drainage lines have been impressed upon the surface of the present state of Iowa, only to be successively wiped out by the hand of time. Not to mention possible earlier ones, a well-marked drainage system was cut into the Saint Louis and older strata prior to Des Moines time. Upon the (relative) subsidence of the land during Des Moines time the valleys were filled and drainage lines obliterated to the farthest limits of deposition of Coal Measures rocks. Differences of nearly 400 feet in the altitude of the Saint Louis surface near …

Iowa's Great Period Of Mountain Making, Charles Keyes

Proceedings of the Iowa Academy of Science

It is a fact almost too well known to state here that the most important single problem in earth-study with which we have to deal in Iowa is that of exact mapping of the different rocky formations. Unlike the cases in the majority of states, the work in this state is vastly simplified by the fact that there has been apparently little orogenic disturbance in the region, and the geological terranes of fundamental consequence mainly belong to a single geologic era. Calling the problem somewhat simple does not by any means signify that the labor of discrimination and tracing of …

Serial Subdivision Of The Early Carbonic Succession In The Continental Interior, Charles Keyes

Proceedings of the Iowa Academy of Science

As the taxonomic consideration of the Early Carbonic formations of the American continent has proceeded during the quarter of a century just passed, complication, rather than simplification, has taken place. Systematic arrangement of the terranes has become less rather than more clearly defined. The recent attempt to amplify one of the subordinate divisional titles so as to cover the whole has been attended by rather incongruous consequences. Small real advancement has resulted from mere change in nomenclature. Bureaucratic authority has been unable to take the place of fact, and its dictates have been as unfortunate, as they have been unsatisfactory …

Preliminary Report On Geological Work In Northeastern Iowa, Arthur C. Trowbridge

Proceedings of the Iowa Academy of Science

Field work is now being carried on in northeastern Iowa, by field classes and graduate students in the Department of Geology in the State University of Iowa, under the direction of the writer. The first work was done in the summer of 1913, in the driftless area of Allamakee, Clayton, and Dubuque Counties, by a field class. The most detailed work has been done by Mr. A. J. Williams who has written a Master's thesis on a small area around Dubuque. The work will be continued during the coming summer, and will probably be carried on in following summers, until …

The Formation Of Eskers, Arthur C. Trowbridge

Proceedings of the Iowa Academy of Science

Ever since work has been in progress in glaciated regions, long, narrow, winding, steep-sided, conspicuous ridges of gravel and sand have been recognized by geologists. They are best developed and were first recognized as distinct phases of drift in Sweden, where they are called Osar. The term Osar has the priority over other terms, but in this country, probably for phonic reasons, the Irish term Esker has come into use. With apologies to Sweden, Esker will be used in the present paper. Other terms which have been applied to these ridges in various parts of the world are serpent-kames, serpentine …

An Area Of Wisconsin Drift Further South In Polk County, Iowa, Than Hitherto Recognized, John L. Tilton

Proceedings of the Iowa Academy of Science

It is commonly understood that the Raccoon River, where it flows through Des Moines, lies just south of the southern limit of the Wisconsin drift sheet in Iowa. North of this river the upland of Wisconsin drift presents the character of a youthful ground moraine, marked by gentle sags and swells, with undrained depressions here and there, features that are conspicuous even in so short a distance as that from Des Moines to Ankeny. South of Raccoon River the level of the old Kansan drift plain is still marked by the level of the upland; but the land is well …

A New Section Of The Railway Cut Near Graf, Iowa, A. O. Thomas

Proceedings of the Iowa Academy of Science

The Maquoketa shale is the upper division of the Ordovician of the upper Mississippi Valley. It lies conformably on the subjacent Galena dolomite and is apparently unconformable with the overlying massive dolomitic beds of the Niagaran. In thickness, the formation varies from 160 to 200 feet or more. In common with the other Paleozoic beds of Iowa, it dips gently to the southwest and outcrops in a belt eight to ten miles wide in the northeastern part of the state; this belt is typically developed in Dubuque County and extends to the northwest into adjacent counties and to the southeast …

Indian Pottery Of The Oneota Or Upper Iowa River Valley In Northeastern Iowa, Ellison Orr

Proceedings of the Iowa Academy of Science

The Oneota, or Upper Iowa, a small river about eighty miles in length, flows through Winneshiek and Allamakee Counties in Iowa, close to their northern border, which is also the line between this state and Minnesota. It flows through a beautiful, winding valley, which has a width of half a mile, and is bounded by precipitous bluffs. The glacial terraces which extend up this valley for forty miles to Decorah have afforded very abundant evidences of a former considerable Indian population. Earth embankments, mounds, and camp sites have yielded up a treasure of implements, weapons and ornaments. Notable among these …

The Variation Of Sound Intensity With Distance From The Source; An Interesting Case Of Deviation From The Inverse Square Law, Harold Stiles, G. W. Stewart

Proceedings of the Iowa Academy of Science

The phenomena of sound present many interesting features and diffraction is not the least. The writers have been able, by an extension of Rayleigh's theory, to determine the effect in the neighborhood of a rigid sphere produced by a source of sound located on that sphere. One of the results of this theoretical investigation is the establishment of the variation of the intensity of sound with the distance from the center of the sphere. The computations necessary for approximate numerical results are tediously long, and those given herewith are merely those that were readily available in other investigations of the …

Notes On The Construction Of Selenium Bridges, E. O. Dieterich

Proceedings of the Iowa Academy of Science

The value or effectiveness of a selenium bridge depends upon several factors; namely: 1. The resistance of the bridge. 2. Its permanence, or stability. 3. Its sensitiveness, i.e., the ratio of the resistance of the bridge in the dark to that in the light. 4. The shape of the wave-length-sensibility curve. This paper summarizes the results of an investigation of the conditions governing the production of selenium bridges of certain types.

Sex-Linked Factors In The Inheritance Of Rudimentary Mammae In Swine, Edward N. Wentworth

Proceedings of the Iowa Academy of Science

Characters fall into four classes when related to sex. The first type is represented by horns in cattle, and red, black and white coats in swine, their appearance being entirely independent of sex. At the opposite extreme are those characters that are confined to one sex only, as the male plumage of the Brown Leghorn or pheasant. Similarly, although exhibiting different behavior somatically, are characters like mammae or tusks that exist in a rudimentary condition, or at least a relatively undeveloped condition, in one sex. Characters of this sort are intimately related to the sex glands and removal of the …

The Effect Of Calcium And Protein Fed Pregnant Swine Upon The Size, Vigor, Bone, Coat And Condition Of The Offspring, John M. Evvard, Arthur W. Dox, S. C. Guernsey

Proceedings of the Iowa Academy of Science

To determine the effect of adding calcium and protein to a corn ration fed the pregnant gilt upon the relative size and vigor of the offspring, a series of experiments has been conducted at this station. The results obtained during the year 1912-13 will be discussed briefly in the following pages.

The Coleoptera Of Henry County, Iowa, Inez N. King

Proceedings of the Iowa Academy of Science

The members of the order Coleoptera can be distinguished readily from all other insects, except the earwigs, by the horny, veinless wing-covers which meet in a straight line down the back, beneath which there is a simple pair of membraneous wings. Beetles differ from earwigs mainly in not having the pincer-like appendages at the tail-end of the body, characteristic of the earwigs.

The Butterflies Of Woodbury County, A. W. Lindsey

Proceedings of the Iowa Academy of Science

As I have been interested in the study of Lepidoptera in and about Sioux City for a number of years, I am undertaking this paper with great pleasure and with the sincere hope that it may prove of interest to other scientists in the state. My work has been somewhat handicapped by a lack of sufficient literature, and the fact that I have been unable to consult any authority on the order, so I have been careful to omit any species of whose identity I am uncertain. I have followed the classification and terminology used by Doctor Holland in his …

An Observation Of Longitudinal Division Of Hydra, L. S. Ross

Proceedings of the Iowa Academy of Science

Upon stopping at the laboratory table of one of the members of the class in freshman zoology one day in the fall semester of 1913, my attention was attracted to a drawing of a Hydra that aroused my interest at once. At first I thought the student had found two Hydras attached to debris close together, and through an error in observation had made a drawing representing them as connected. But upon looking at the specimen I saw, for the first time in my experience, a Hydra in the process of longitudinal division, the fission having proceeded through the length …

Butterflies Of Chance Occurrence In Cass County, Iowa, Frank C. Pellett

Proceedings of the Iowa Academy of Science

The distribution of butterflies is strangely local with many species. Not having sufficient data at hand to justify an attempt to catalogue the butterflies of this locality, I am led to offer a list of a few species that are so seldom seen here as to make it unlikely that they would be taken by one making a study of only a few weeks' duration.

Fall Term Commencement [Program], November 25, 1913, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

College Catalog And Circular 1913, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents:

Calendar for 1913-1914 ... 6
Officers of Administration ... 8
Officers of Instruction ... 8
Faculty Committees 1913-1914 ... 19
Plan of Organization ... 21
Organization of the Faculty ... 23
General Regulations ... 23
Faculty Regulations ... 27
Expenses and Fees ... 28
Literary Societies ... 31
Special Certificates ... 32
Training Department in Actual Teaching ... 33
Public Lectures and Entertainments ... 38
Boarding and Lodging ... 41
Requirements for Admission ... 43
Outline of the College Course ... 45
Distribution of Credits ... 46
Professional Course of Study for College Graduates ... 55
Special …

Summer Term Commencement [Program], July 25, 1913, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

Courses Of Study And Program Of Recitations, 1913-1914, Iowa State Teachers College

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 Teachers College.

Spring Term Commencement [Program], June 10, 1913, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

Winter Term Commencement [Program], March 11, 1913, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

Summer Term, Seventeenth Annual Session, 1913, Iowa State Teachers College

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 Teachers College.

Some Factors Affecting Fetal Development, John M. Evvard

Proceedings of the Iowa Academy of Science

That the nourishment of the mother during the period of gestation should affect the weight, vigor, general relative size, bone and skin (with covering) of the offspring is quite evident from the results of some recent experimental studies made by us. Dr. A.W. Dox and S.C. Guernsey of the Chemical Section arc working upon the chemistry of this problem in co-operation with the writer. Our work is being carried on with both sheep and swine in order that we may get a double set of records upon different species of animals.

Indian History Of Winneshiek County, Charles Philip Hexom

Iowa Book Gallery

A history of the Winnebago Indians of Winneshiek County in northeast Iowa.

The Pollution Of The Underground Waters With Sewage Through Fissures In Rocks, Henry Albert

Proceedings of the Iowa Academy of Science

The possibility of pollution of underground waters through fissures in rocks has long been a well-established fact. The actual demonstration of such as the source of cases or epidemics of disease in Iowa has until recently not been proved. It is with the idea of reporting an epidemic of typhoid fever due to pollution of this kind and of calling attention to the need of a sanitary water survey in Iowa, that I present this paper.

Late Devonic Sequence Of The Iowa Region (Synopsis), Charles Keyes

Proceedings of the Iowa Academy of Science

The great Devonic limestone succession in Iowa was long treated as if it were a single stratigraphic unit. To it the title Cedar Valley formation was generally attached. This vaguely defined term was suggested by D. D. Owen as early as 1852. Little or no attempt was seemingly ever made to differentiate this hundred-odd feet of limestone.

Food Habits Of The Skunk, Frank C. Pellett

Proceedings of the Iowa Academy of Science

In observation of the food habits of the birds of prey one can take advantage of the fact that food must be brought to the young in the nest. With the skunk, which is a nocturnal animal, many difficulties present themselves in gathering sufficient information on which to base a conclusion, and it must be confessed in the beginning that the results are rather of a negative than a positive character. Animals in captivity adapt themselves to their environment quickly and form habits which perhaps might not be normal when living under natural conditions. In making the observations on this …

Additional Mammal Notes, T. Van Hyning

Proceedings of the Iowa Academy of Science

In the proceedings of the Iowa Academy of Sciences for 1910 appears ''a preliminary annotated catalogue of the recent mammals of Iowa,'' by T. VanHyning and Frank C. Pellett. The design in publishing that catalogue was for the purpose of obtaining more complete data for a monograph. It is now very gratifying to add the following notes as the results: The following species were given in that catalogue as only probably occurring in the state.