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Proceedings of the Iowa Academy of Science

No abstract provided.

Officers And Past Presidents, Iowa Academy Of Sciences

Proceedings of the Iowa Academy of Science

No abstract provided.

Constitution Of The Iowa Academy Of Sciences

Proceedings of the Iowa Academy of Science

No abstract provided.

A Review Of The Tettigonidaae Of North American North Of Mexico, E. D. Ball

Proceedings of the Iowa Academy of Science

The present paper has been planned to serve a double purpose. Its first object being to furnish a means of separating and determining the members of this family found in the United States and Canada, together with their varieties and the synonomy as far as it has been worked out. Secondly, to give sufficiently accurate and detailed descriptions in all cases, even where not necessary in the separation of our own forms, so that later workers in the group and those from other parts will be able to discriminate between our species and closely allied forms from other regions, or …

The Influence Of Chlorine As Chlorides In The Determination Of Oxygen Consumed In The Analysis Of Water, J. B. Weems, J. C. Brown

Proceedings of the Iowa Academy of Science

One of the most valuable determinations in the analysis of water and sewage is the determination of the oxygen consumed. In the deep well waters of the state, the amount of chlorine in the form of chlorides in many cases is very high, as may be seen by the investigations of the Geological Survey on the artesian waters.

A Study Of Some Cotton Seed Oils, J. B. Weems, H. N. Grettenberg

Proceedings of the Iowa Academy of Science

In connection with an investigation which was recently made at the Experiment Station it became necessary to investigate a number of cotton seed oils, which were prepared for general use. When it is realized that cotton seed oil, which is one of the cheaper oils, is used in many cases for adulterating oils of a better class it is seen that any data regarding this substance is of value to those who are engaged in the analytical branch of chemistry.

Diphenyl Ether Derivatives, Alfred N. Cook

Proceedings of the Iowa Academy of Science

(1) Historical Introduction.

(2) Preparation of a Nitro-Methyl Derivative.

(3) Oxidation of the Methyl Group to an Acid and the Preparation of Some of the Salts of the Acid.

(4) Reduction of the Nitro Group to Form a Base and the Formation of the Platinum Salt.

(5) Bibliography.

Contribution To The Study Of Reversible Reactions, W. N. Stull

Proceedings of the Iowa Academy of Science

The object of this investigation has been to determine the points of equilibrium in the reactions resulting when solutions of metals are treated with hydrogen sulphide, and to determine the changes of those points with regard to changes of temperature. As the work advanced the importance of the question of the rate of the reactions became more and more apparent, and as a result I have dealt at considerable length with this factor and with the effects of temperature and agitation upon it.

The Juglandaceae Of Iowa, T. J. Fitzpatrick, M. F. L. Fitzpatrick

Proceedings of the Iowa Academy of Science

The walnut family comprises six genera and about 35 species. Only two genera occur in Iowa, namely, Juglans (Walnut) and Hicoria (Hickory), and these two genera are represented by two and five species respectively. From an economic point of view the species are valuable and consequently have been largely utilized until but few specimens of the older forest remain. The younger growth is hardy and will, if spared, eventually yield fair returns.

A Terrace Formation In The Turkey River Valley, In Fayette County, Iowa, G. E. Finch

Proceedings of the Iowa Academy of Science

The Turkey River flows, in the lower part of its course, through the driftless area in Fayette County, through wide bottom lands. These are usually a half-mile, sometimes a mile or more in width, showing considerable progress in base-leveling.

The Thistles Of Iowa, With Notes On A Few Other Species, L. H. Pammel

Proceedings of the Iowa Academy of Science

I have for some years been interested in a study of our thistles. During my study in St. Louis I had occasion to examine the rich collections of the Gray Herbarium, Harvard University, as well as that of the Engelmann Herbarium and the Missouri Botanical Garden, besides a considerable collection in the Parry and I. S. C. Herbaria. I should not attempt the publication of only a partial paper on thistles, but it may be some time before I shall be able to get together the manuscript lost in the fire. With this apology I present these notes.

Bacteriological Investigation Of The Iowa State College Sewage, L. R. Walker

Proceedings of the Iowa Academy of Science

As an introduction to the consideration of the Iowa State College sewage, the kinds of sewage, the necessity of disposal, and several of the most important methods with their merits and disadvantages will be discussed.

Drift Exposure In Tama County, T. E. Savage

Proceedings of the Iowa Academy of Science

A few months ago, in making some improvements in the roadbed of the Chicago & Northwestern Railroad, a deep cut was made in a hill about three miles west of the city of Toledo, in Tama county, Iowa, where the following section was exposed.

Program, Iowa State Normal School, Fall Term, 1899, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught at the Iowa State Normal School.

General Announcement, Summer Term, 1899, Iowa State Normal School

UNI Programs and Courses Catalogs

Table of Contents:

Calendar for School Year, 1899-1900 ... 1
Faculty of Instruction ... 2
General Announcement ... 3
Program of Lectures ... 6
Details as to Departments of Summer Term ... 8
Calendar of Friday Evening Lectures ... 11

Program, Iowa State Normal School, Spring Term, 1899, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught at the Iowa State Normal School.

Necrology: Arthur A. Crozier; Robert Combs; Carl Edward Schlabach, L. H. Pammel

Proceedings of the Iowa Academy of Science

No abstract provided.

Observations In The Vicinity Of Wall Lake, Frank A. Wilder

Proceedings of the Iowa Academy of Science

The Wall Lake in question is a picturesque sheet of water three miles long and a mile wide, in southeastern Sac County. The only published observations in regard to this lake that I have found are those of Mr. Charles A. White, who wrote in regard to it in connection with other walled lakes of Iowa, in the American Naturalist, Vol. II, and in the annual reports of the Geological Survey of Iowa, Vols. I and II.

Powdery Mildew Of The Apple, L. H. Pammel

Proceedings of the Iowa Academy of Science

There has been much discussion on the subject of powdery mildew of the apple. It has been referred to several genera but Sorauer in his book on “Plant Diseases" and Tubeuf in his work on "Plant Diseases" reports the Podopshaera oxyacanthae DC., as destructive to the apple, and makes the statement that it is abundant upon the apple and pear in America. Frank in the second edition of his work on “Plant Diseases” makes a statement somewhat similar to that of Tubeuf. These statements are undoubtedly based upon the work of Galloway, who paid some attention to the subject of …

Program, Iowa State Normal School, Winter Term, 1898-99, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught at the Iowa State Normal School.

Quince Fruit With An Immense Number Of Seeds, L. H. Pammel

Proceedings of the Iowa Academy of Science

Several years ago there was brought to me a quince, Pyrus cydonia, containing much more than the usual number of seeds. The genus Pyrus has from two to five ovaries and in each ovary are two ovules. Bailey in the revised edition of “Gray's Field, Forest and Garden Botany" states that the five cells are normally many seeded. In the case under consideration the fruit had a perfectly normal appearance of five cells and over one hundred seeds. They are shown in the accompanying illustrations.

Catalog And Circular Of The State Normal School, 1899, Iowa State Normal School

UNI Programs and Courses Catalogs

Table of Contents:

State Normal School Buildings ... Frontpiece
State Board of Control ... 2
Calendar for 1899-1900 ... 3
Faculty 1898-99 ... 4
Faculty Organization ... 8
Equipment - Buildings ... 10
Rules and Regulations of the Board of Trustees ... 14
Faculty Regulations and Directions ... 18
Courses of Study ... 20
Regular Courses ... 22
High School Graduate Courses ... 29
Professional Course of Study ... 36
Professional Course of Study for Special Primary Teachers ... 38
General Directions and Regulations Concerning Classification ... 42
Expenses ... 48
Boarding and Lodging ... 54
The Course of Study …

Some Cercosporae Of Macon Co., Alabama, George W. Carver

Proceedings of the Iowa Academy of Science

The wide distribution and the economic importance of the Cercospora in this county has prompted the writing of this paper. This list by no means represents all of the species of this county, as no special effort has been made to collect Cercospora only. These collections were made while passing hurriedly to and from other duties. With few exceptions, the species were collected in the immediate vicinity of Tuskeegee.

Terraces Of The Nile Valley, Charles R. Keyes

Proceedings of the Iowa Academy of Science

Erosion forms in regions of very dry climates are always of great interest. The characteristic relief outlines are not only preserved much longer than in regions of abundant rainfall, but the types of different cycles or parts of cycles are not merged with one another. In other words, the sequence of events is read at a glance in the one district, while in the second it is made out only partially after long and laborious effort. The Great Basin is the best example in this country.

Notes On The Acocephalina (Homoptera Jassidae), E. D. Ball

Proceedings of the Iowa Academy of Science

This widely distributed European species has been found in New York, Michigan and Iowa; and this season it was found abundantly in Colorado, as far west as the foot-hills, indicating a very general distribution east of the Rockies, at least.

A Study Of The Chemical Composition Of Some Of The Grasses Of The State, J. B. Weems

Proceedings of the Iowa Academy of Science

ne of the problems in connection with the work of the experiment station for the past two or three years has been an investigation of the native grasses of the state. The work has been carried on by the botanical and chemical sections of the station and the results which are presented here may be regarded as a part of this work. The analyses presented are of those grasses which have been most thoroughly investigated and are as follows: (1), Dactylis glomerata (orchard grass); (2), Muhlenbergia Mexicana (Mexican wood-grass); (3), Spartina cynosuroides (fresh water cord grass); (4), Poa pratensis (Kentucky …

A Chemical Study Of Butter Increasers, J. B. Weems, F. W. Bouska

Proceedings of the Iowa Academy of Science

In connection with the investigations in the chemical laboratory of the experiment station of problems connected with the amount of water present in butter, analyses were made of two samples of butter which appeared to contain a very large amount of water. The water present was apparently in large proportions and this condition gave a reason for the request for the analyses. In the attempt to mix the product in order to get an average sample it was found that the water readily separated from the other constituents, and on analysis of the product the following results were obtained.

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

Proceedings of the Iowa Academy of Science

No abstract provided.

Eleodes In Iowa, H. F. Wickham

Proceedings of the Iowa Academy of Science

The genus Eleodes contains certain species of beetles belonging to the family Tenebrionidae. They are terrestrial and cursorial, rarely being found on plants of any size, though a few are known to ascend the stems of shrubs. All are of large or medium size, and devoid of functional wings, the elytra being connate, forming a perfect shield which clasps the sides of the body. The integument is very thick, and forms, in connection with this elytral structure, an efficient protection from desiccation. Repugnatorial glands are present, secreting a powerful caustic fluid which is discharged through the anus when the insect …

Genesis Of Normal Compound, And Normal Horizontal Faulting, Charles R. Keyes

Proceedings of the Iowa Academy of Science

In the mining districts of mountainous regions the ore-bearing belts are quite often coincident with fault planes. These planes are not usually clean-cut, single slipping surfaces, but consist of a number of gliding faces distinct from one another, sometimes branching, sometimes crossing at low angles, and contain in their immediate neighborhood more or less brecciated material. This compound character of what we are prone to pass over as single, simple dislocation, is found, after a little careful examination, to prevail in the majority of cases.