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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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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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Bibliography Of The Driftless Area, W. D. Shipton Jan 1917

Bibliography Of The Driftless Area, W. D. Shipton

Proceedings of the Iowa Academy of Science

A bibliography of the Driftless Area, 1682-1916.

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Bird Records During The Past Winter, 1916-1917, In Northwestern Iowa, T. C. Stephens Jan 1917

Bird Records During The Past Winter, 1916-1917, In Northwestern Iowa, T. C. Stephens

Proceedings of the Iowa Academy of Science

The winter of 1916-1917 has shown a number of uncommon things concerning the avifauna of the region under consideration, of which Sioux City is the central station. The notes will be presented in the form of an annotated list of the birds found, but account will not be taken of a number of late migrating species which were seen within the limits of time hereinafter adopted, such, for example, as the Pipit, and others. Winter visitors and summer stragglers only will be listed.

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The Influence Of The Male On Litter Sizes, Edward N. Wentworth Jan 1917

The Influence Of The Male On Litter Sizes, Edward N. Wentworth

Proceedings of the Iowa Academy of Science

A common belief among practical breeders is that the male in multiparous species affects the number at a birth. This belief has even permeated scientific writing; many biologist apparently taking the supposed observation at face value, while others have sought biometrical proof in the various accumulations of the data regarding fertility inheritance found in biological records.

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The Dissociation Of Double Salts, Harold L. Maxwell, Nicholas Knight Jan 1917

The Dissociation Of Double Salts, Harold L. Maxwell, Nicholas Knight

Proceedings of the Iowa Academy of Science

The purpose of this work is to study the condition of double salts in aqueous solution. Graham was the first to show that the double sulphates of the alums could be separated by diffusion. Marignac confirmed this work soon after and reached the conclusion “That double salts are found as such only at the moment of crystallization.”

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In Memoriam: Arthur G. Smith; Bert H. Bailey, R. P. Baker, S. W. Stookey Jan 1917

In Memoriam: Arthur G. Smith; Bert H. Bailey, R. P. Baker, S. W. Stookey

Proceedings of the Iowa Academy of Science

No abstract provided.

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Continental Perspective Of American Precambrian Stratigraphy, Charles Keyes Jan 1917

Continental Perspective Of American Precambrian Stratigraphy, Charles Keyes

Proceedings of the Iowa Academy of Science

To many of the delegates to the Twelfth International Geological Congress who listened to the papers and discussions on Pre-Cambrian problems and who afterwards took part in the Canadian transcontinental excursions into regions where the ancient elastics were displayed in infinite variety, the most valuable feature perhaps, was the field evidences of the amazing taxonomic possibilities which on the American continent the Pre-Cambrian sections were opening up. Few of the travelers had ever seen so deeply into the oldest stratified rocks in so short a time, under such favorable circumstances, or under happier guidance. Some of the participants in the …

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Some Natural Waters Of Central New York, Nicholas Knight, Vernon C. Shippee Jan 1917

Some Natural Waters Of Central New York, Nicholas Knight, Vernon C. Shippee

Proceedings of the Iowa Academy of Science

The little stream from which the City of Oneida, New York, receives its water supply, and also the reservoir, are located in the midst of the Salina shales. In some places these shales contain notable quantities of gypsum, many times quite large masses of selenite.

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Terranal Affinities Of Original Chouteau Limestone, Charles Keyes Jan 1916

Terranal Affinities Of Original Chouteau Limestone, Charles Keyes

Proceedings of the Iowa Academy of Science

In all the Mississippi valley there is no geologic formation that is so misunderstood, or so illy considered as regards its stratigraphic relations, as the massive, buff limestone terrane immediately underlying the Burlington limestone of Missouri and Iowa. Originally noticed by Prof. G. C. Swallow, in 1855, as a thick, homogeneous lithologic unit typically developed in central Missouri along the northern flanks of the Ozark dome, and extended into other parts of the state as the uppermost member of a tripartite "Chemung" group, little mention is later made of it.

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A Modern School, Abraham Flexner Jan 1916

A Modern School, Abraham Flexner

History of Education Book Gallery

A Modern School is a 23-page occasional paper, written by Abraham Flexner and published in 1916 by The General Education Board. Flexner (1866-1959) was an American educator and education reformer. The occasional paper presented here addresses many of the perceived failings of the public school system circa 1916 and suggests several reforms. The General Education Board was established by John D. Rockefeller in 1903. According to the Rockefeller Foundation, the board was established to aid education in the U.S. without distinction of race, sex or creed, and was active in promoting the public school movement in the early part of …

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The Pleistocene Of Capitol Hill, James H. Lees Jan 1916

The Pleistocene Of Capitol Hill, James H. Lees

Proceedings of the Iowa Academy of Science

The Pleistocene exposures on Capitol Hill at Des Moines have become classic through the studies made by McGee and Call which demonstrated the presence of glacial drift overlying loess. The results of these studies were published in the American Journal of Science, Volume 24, 1882, pp. 202-223.

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A Note Regarding The Present Status Of The Iowan Drift Problem, George F. Kay Jan 1916

A Note Regarding The Present Status Of The Iowan Drift Problem, George F. Kay

Proceedings of the Iowa Academy of Science

Among the many persons who, by their publications, have made known to the world the Pleistocene history of Iowa, no one has had a greater part than Doctor Calvin, who spent his life endeavoring to interpret the geological phenomena of the slate. For many years, but chiefly from about 1895 until his death in 1911, important papers were written by him in the reports of the Iowa Geological Survey, of which he was Director, and in other channels of publication. None of these publications are of greater interest than those which describe the characteristics, relationships, and age of the Iowan …

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Bibliography Of The Loess, E. J. Cable Jan 1916

Bibliography Of The Loess, E. J. Cable

Proceedings of the Iowa Academy of Science

A bibliography of the loess area of Iowa.

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Pure Sodium Chloride, Nicholas Knight Jan 1916

Pure Sodium Chloride, Nicholas Knight

Proceedings of the Iowa Academy of Science

It is often convenient and necessary to have on hand a supply of pure sodium chloride for the preparation of standard solutions. It is quite easy to obtain the substance with a "C. P." label, but it does not always follow that the article is as pure as the label may indicate.

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Acid Potassium And Acid Sodium Phthalates As Standards In Alkalimetry And Acidimetry, W. S. Hendrixson Jan 1915

Acid Potassium And Acid Sodium Phthalates As Standards In Alkalimetry And Acidimetry, W. S. Hendrixson

Proceedings of the Iowa Academy of Science

Quite recently Francis D. Dodge suggested acid potassium phthalate and acid sodium phthalate as standards in alkalimetry and acidimetry. His paper contains no analytical data and is largely theoretical, and so far as the writer can determine no such data are available. The two substances have certain very desirable features as standards, which Dodge has pointed out. The question is whether they are true acid salts. It seemed to me a matter of interest to subject them to a somewhat rigorous examination to determine whether they can be relied upon to give accurate results in standardization.

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Early Iowa Locality Records, B. Shimek Jan 1915

Early Iowa Locality Records, B. Shimek

Proceedings of the Iowa Academy of Science

Students of plant and animal distribution are naturally interested in exact geographic designation, and they frequently suffer inconvenience from the inaccuracy or misconception of locality names. Confusion in our western records sometimes arises because the earlier explorers worked in an unsettled wilderness in which accurate geographic designation was difficult or impossible, and again from the fact that names were often at first applied to larger areas than those to which the name is at present restricted.

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Foundation Of Exact Geologic Correlation, Charles Keyes Jan 1915

Foundation Of Exact Geologic Correlation, Charles Keyes

Proceedings of the Iowa Academy of Science

In the last generation or two there appears to have been little advancement made along lines of general geologic correlation. Two controlling reasons stand out prominently. On account of the fact that the criterion of fossils is so largely misused and is so generally unchecked by other critical criteria it is continually losing much of its former precedence. The adoption of the lithologic formation as the cartographic unit is also almost a complete failure for the reason that no account is taken of the change, replacement and effacement of its essential characters from place to place. All this confusion gives …

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Summer Term, Eighteenth Annual Session, 1914, Iowa State Teachers College Mar 1914

Summer Term, Eighteenth Annual Session, 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.

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Sex-Linked Factors In The Inheritance Of Rudimentary Mammae In Swine, Edward N. Wentworth Jan 1914

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 …

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The Blue Book Of Iowa Women, Winona Evans Reeves Jan 1914

The Blue Book Of Iowa Women, Winona Evans Reeves

Iowa Book Gallery

A collection of brief biographies of Iowa women.

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The Electrical Conductivity Of Solutions Of Certain Electrolytes In Organic Solvents, J. N. Pearce Jan 1914

The Electrical Conductivity Of Solutions Of Certain Electrolytes In Organic Solvents, J. N. Pearce

Proceedings of the Iowa Academy of Science

The study of the electric conductivity of solutions in organic solvents has brought to light many interesting relations. In many such solvents the same general relation obtains as is found in the case of aqueous solutions, viz., the molecular conductivity increases regularly with increasing dilution. In the great majority of these no limiting value of the molecular conductivity is obtainable, however great the dilution employed.

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An Observation Of Longitudinal Division Of Hydra, L. S. Ross Jan 1914

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 …

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

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.

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Color Inheritance In The Horse, Edward N. Wentworth Jan 1913

Color Inheritance In The Horse, Edward N. Wentworth

Proceedings of the Iowa Academy of Science

While laboratory animals have yielded very nicely to the study of their inheritance of color, the horse still remains a mystery in many of the phases of coat transmission. Hurst and Bunsow have recognized chestnut with the sorrel and liver shades as a true recessive, and Hurst has shown black to be epistatic to this reddish pigment. Bays and browns have been with difficulty separated but have been considered as epistatic to both colors mentioned, while grays and roans seem dominant to the entire series of color. One difficulty which seems to have beset all investigators up to the present …

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The Effect Of Smoke And Gases Upon Vegetation, A. L. Bakke Jan 1913

The Effect Of Smoke And Gases Upon Vegetation, A. L. Bakke

Proceedings of the Iowa Academy of Science

The history of an industrial community marks itself into three divisions: (1) the movement from the country into the city, (2) the building up of enterprises or commercial concerns, (3) the conservation of waste products. The movement of the people from the country to the city carries with it a number of problems. Many of these would not be met with in the country.

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Summer Term, Sixteenth Annual Session, 1912, Iowa State Teachers College Mar 1912

Summer Term, Sixteenth Annual Session, 1912, 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.

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Nether Delimitation Of Our Carbonic Rocks, Charles Keyes Jan 1912

Nether Delimitation Of Our Carbonic Rocks, Charles Keyes

Proceedings of the Iowa Academy of Science

The exact stratigraphic relations of, and the exact boundary line between, the latest Devonic formations and the earliest Carbonic rocks of the Mississippi valley north of the Missouri river have long remained some of the unsolved geographic problems. That the question should stand today much as it did 60 years ago is due chiefly to the circumstance that although three state geological surveys have repeatedly attacked it, all the necessary facts were not available in any one state alone. No observer seems to have had the opportunity to make critical investigations in all three of the states or to have …

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Early Iowa Locality Records, B. Shimek Jan 1912

Early Iowa Locality Records, B. Shimek

Proceedings of the Iowa Academy of Science

Students of plant and animal distribution are naturally interested in exact geographic designation, and they frequently suffer inconvenience from the inaccuracy or misconception of locality names. Confusion in our western records sometimes arises because the earlier explorers worked in an unsettled wilderness in which accurate geographic designation was difficult or impossible, and again from the fact that names were often at first applied to larger areas than those to which the name is at present restricted.

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Charter Members Of The Iowa Academy Of Science, L. H. Parmmel Jan 1912

Charter Members Of The Iowa Academy Of Science, L. H. Parmmel

Proceedings of the Iowa Academy of Science

Two charter members of the Academy, Dr. Samuel Calvin and Professor J. E. Todd, were primarily geologists, both, however, had such good training in the old natural history courses given in our colleges forty and fifty years ago, that they became all-round naturalists. In the early days of teaching science in Iowa, when they did their pioneer work, they had the whole range of scientific instruction along the lines of natural history and natural science. In late years Dr. Calvin was primarily a geologist, never, however, losing interest in natural history. Several biographical sketches of the late Dr. Calvin have …

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