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The Correlation Of Art And Science In The Museum, Homer R. Dill

Proceedings of the Iowa Academy of Science

What is it that makes the museum a success? I believe this question may be satisfactorily answered by a careful study of the people who visit museums. Go to some good museum and stroll quietly about among the groups of spectators and listen to their remarks; note carefully the types of exhibits that attract their attention, occasion their comment, and hold their interest. If you are interested and wish to follow up your investigation, go again and as often as you are able. You may thereby get some suggestions for building a museum for the public that never would occur …

Variations In The Branches Of The Coeliac Arterty In The Rabbit, H. R. Werner

Proceedings of the Iowa Academy of Science

It has been noted in some mammals, and no doubt this is true for most species, that there is considerable variation from what is ordinarily understood as the normal condition in the origin and arrangement of certain arteries and veins. Such variations have been reported concerning the origin of groups of vessels, such as the arteries which arise from the systemic aorta and supply the head, neck and fore limbs. Similar conditions have been observed in the post cava and the venous system in general in some mammals. Even the blood vessels in man, both arteries and veins, are subject …

Thomisidae Of The Ames Region, I. L. Ressler

Proceedings of the Iowa Academy of Science

The spiders of the family Thomisidae are commonly called crab spiders. They are so-called because of the characteristic crablike attitude in which they hold the legs and because they can walk as readily sidewise or backward as forward. The first two pairs of legs are usually considerably longer and stouter than the third and fourth pairs. The tarsi are two-clawed. The eyes are small and arranged in two rows, both of which are almost always recurved.

The Relation Of Native Grasses To Puccinia Graminis In The Region Of Iowa, Western Illinois, Wisconsin, Southern Minnesota And Eastern South Dakota, L. H. Pammel

Proceedings of the Iowa Academy of Science

During the summer and fall of 1918 the writer made, under the auspices of the Cereal Investigations of the U. S. Department of Agriculture, a study of the distribution of some of our native grasses and their relation to Puccinia graminis. The region embraced Iowa, western Illinois and Wisconsin, southern and western Minnesota and eastern South Dakota.

The Moss And Lichen Flora Of Western Emmet County (An Annotated List Of The Bryophytes And Lichens Of The High Lake And Des Moines River Region), B. O. Wolden

Proceedings of the Iowa Academy of Science

The prairie region does not, as a rule, offer a very rich field for the student of mosses and lichens. However, the territory which this paper attempts to cover does present several features of interest not only to such students but to the general botanist as well. For here we have not only the level prairie, but also lakes and deep woods, dry wooded ridges and shady ravines and hillsides.

Measurements Of Wood Fiber, H. S. Conard, W. A. Thomas

Proceedings of the Iowa Academy of Science

Many of the properties of wood depend upon the character and arrangement of the fiber cells which enter into its composition. This is especially true of those properties which determine its strength, hardness and adaptability for the manufacture of paper pulp. With a view to throwing light on these properties, we have made measurements of the length and diameter of the fibers in forty-one species of trees. No attempt was made to segregate the various types of fiber that occur in different species. We have taken any of the slender, fusiform, non-septate, thick walled members of the xylem. The maximum …

Some American Dolomites, Burleigh B. Reed, Nicholas Knight

Proceedings of the Iowa Academy of Science

These rocks are among the important building materials of the country and have a wide distribution. We secured a few typical specimens from different sections, in order to make a comparison of their chemical composition. The specimens analyzed are all used as building stones in their respective localities.

Meteor Mountain, David H. Boot

Proceedings of the Iowa Academy of Science

One of the greatest natural curiosities in the world, though very little known, is Meteor Mountain, which is located about forty miles southeast of the town of Flagstaff, Arizona, and about ten miles south of the town of Sunshine, Arizona, that is, it is located in the north central part of the state. It is said by the men of the United States Geological Survey to be probably the most mysterious geological feature of the United States, lacking, as it does, all parallel anywhere in the world, and its exact cause being held in doubt by many geologists.

Further Notes On Helicina Occulta Say, B. Shimek

Proceedings of the Iowa Academy of Science

Few American mollusks equal Helicina occulta Say in interest. It is an operculate species which has been reported at times as aquatic, though it is strictly terrestrial; its living representatives are distributed over widely separated areas in restricted local colonies, and evidently represent a declining race; and it is a common fossil of the loess of peculiar significance, of much more general distribution in the loess-covered portions of the upper Mississippi- Missouri basin, failing to reach the region of the northernmost living colonies, but extending well beyond them westward.

The Interpretation Of Certain Leached Gravel Deposits In Louisa And Washington Counties, Iowa, W. H. Schoewe

Proceedings of the Iowa Academy of Science

During the field season of 1917, the writer examined two exposures of stratified sands and gravels, which, in age, may probably be correlated with the close of the Nebraskan stage of glaciation and with Aftonian times.

The Iowan-Wisconsin Border, E. J. Cable

Proceedings of the Iowa Academy of Science

Workers of the Pleistocene of Iowa must use several criteria for distinguishing the different drift sheets. The working criteria are, (1) surface topography of the drift, (2) distinctive lithological characteristics, (3) degree and depth of leaching and oxidation, (4) distinctive interglacial deposits and, (5) pronounced erosional and weathered zones. It was formerly thought to be quite an easy matter to distinguish one drift sheet from another by means of criteria (1), (2) and (3), with great emphasis upon (1) and (3). Too much emphasis, however, cannot be placed upon the lithological characters, since a careful study of the drift sheets, …

A Deep Well At Laurens, Pocahontas County, E. J. Cable

Proceedings of the Iowa Academy of Science

The town of Laurens is located in the northwest corner of Pocahontas County. The surface drift within the county is Wisconsin, while the underlying drifts are probably Kansan and Nebraskan.

A Century Of Iowa Geology, Charles Keyes

Proceedings of the Iowa Academy of Science

The first centennary of a science in Iowa is upon us. History of the sciences in the commonwealth now goes back beyond the span of our statehood. It transgresses a date when even a name for our state was yet unknown. In Iowa, by many years, claims to first recognition for geology antedate those of every other natural science. Curiously enough this earliest Iowa episode is also the most important geological event for the entire continent during a hundred years. It is even worldwide in some of its aspects. Nor are these early observations alone in their great significance. During …

Southward Extension Of The Bozeman Tertiaries Into Utah, Charles Keyes

Proceedings of the Iowa Academy of Science

Bozeman Beds is a term which is applied to certain gravel deposits that saddle the continental divide in Montana and Idaho. These beds are true epirotic accumulations. They appear to be mainly fluviatile in origin; although they manifestly are partly eolic in nature. Consisting of gravels, sands and silts they chiefly lie in old intermontane valleys. Their age is pre-Glacial.

The Independence Shale Near Brandon, Iowa, A. O. Thomas

Proceedings of the Iowa Academy of Science

On June 23, 1876, at the first annual meeting of the Iowa Academy of Science at Iowa City, Prof. Samuel Calvin read a paper entitled "Preliminary Notice of Some Dark Shales near Independence, Iowa." The paper was not published but early in 1877 an abstract of it appeared in the American Naturalist, Vol. 11, pp. 57-58. In this abstract the shale is referred to the Marcellus due to its position below certain limestones, then believed to be Hamilton, and due also to the presence of a shell presumably of Marcellus age. The shale had been discovered in the bottom of …

Superposed Stroboscopic Velocities, L. E. Dodd

Proceedings of the Iowa Academy of Science

The curves plotted from the stroboscopic velocity equation, ¹ v.= (A— n/m.B)D₀, (1) and from the derived form, ² f=mN— nB, (2) show that from a given frequency of the stroboscopic figures there is an unlimited number of illumination frequencies that will give the stationary stroboscopic condition, and conversely, for a given value of the illumination frequency there is an unlimited number of frequencies of the stroboscopic figures that will make v₃ equal to zero.

The Action Of Conical Horns, G. W. Stewart

Proceedings of the Iowa Academy of Science

Conical horns possess two aspects of considerable importance. In the first place, they are an exceedingly important form of acoustical apparatus. Again, there is no exact theory of the action of conical horns and hence the only recourse for quantitative information is that of experiment.

Effect Of Temperature On Resistance And Specific Resistance Of Tellurium Crystals, Arthur R. Fortsch

Proceedings of the Iowa Academy of Science

In his Master's thesis Dr. Tisdale gives some results on the effect of temperature on the resistance of tellurium crystals. He finds a decided maximum at about zero degrees Centigrade.

James Hearst Honorable Discharge

James Hearst Documents

The honorable discharge papers of James Hearst at the end of his military service in 1918, filed in Black hawk County in 1919

Fall Term Commencement [Program], December 3, 1918, 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.

Supplement To The Alumni News Letter, V2n4, October 1, 1918, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

Iowa State Teachers College Program Of Recitations, Fall 1918, 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.

Summer Term Commencement [Program], August 22, 1918, 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.

The Alumni News Letter, V2n3, July 1, 1918, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

Spring Term Commencement [Program], June 6, 1918, 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 1918, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents:

Calendar for 1918-1919 ... 6
Officers of Administration ... 6
Officers of Instruction ... 8
Plan of Organization ... 35
General Regulations ... 35
Faculty Regulations ... 38
Order and Deportment ... 38
Credits and Scheduling ... 38
Schedules, Credits, and Absences ... 39
Dismissals, Re-enrollments, and Unsatisfactory Work ... 39
Extension Service ... 39
Exchange of Students ... 40
Expenses and Fees ... 40
College Organizations ... 42
Training in Actual Teaching ... 43
Boarding and Lodging ... 44
Employment of Students ... 46
Admission Requirements ... 48
Definitions of College Terminology ... 49
Degrees, Diplomas, …

Iowa State Teachers College Program Of Recitations, Spring 1918, 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.

The Alumni News Letter, V2n2, April 1, 1918, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

Supplement To The Alumni News Letter, V2n2, April 1, 1918, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

Winter Term Commencement [Program], March 12, 1918, 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.