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The Sioux City Water Supply. Iii, Alfred N. Cook

Proceedings of the Iowa Academy of Science

Examination of various waters in. Sioux City has been carried on at intervals during the past year. It will be observed by comparison with analyses of former years that there has been great fluctuation in the detrimental characters of the city water. During the past fall, for several months, the albuminoid ammonia reached and passed the danger limit. This is the first time this has been noted since this series of analyses was begun, although it was pointed out in an article published in the Sioux City Tribune over a year ago that this was likely to take place at …

The Lichens Of "The Ledges," Boone County, Iowa, Katy A. Miller

Proceedings of the Iowa Academy of Science

The study of the flora of "The Ledges" furnishes much opportunity for interesting research. Besides possessing some of the most beautiful scenery of Iowa these ledges, with their moisture and shade, make an inviting habitat for plants of many kinds. Of these plants the lichen flora is perhaps the most interesting, because heretofore little work has been done on the flora of perpendicular sandstone exposures, such as are here presented

A Method For The Determination Of Chloric Acid, W. S. Hendrixson

Proceedings of the Iowa Academy of Science

In the methods for the determination of chloric acid by reduction, metallic zinc in some form and ferrous sulphate have been the reducing agents most used, though sulphur dioxide and formaldehyde have also been employed. The conditions under which the two former reducing agents have been used have been much varied. Thus Thorpe and Eccles used the zinc-copper couple, and determined with a solution of silver the chloride formed from the chlorate. Bothamley and Thompson showed that the results by this method were too low unless sulphuric acid was added near the end of the reduction to dissolve any basic …

The Action Of Chloric Acid On Metals, W. S. Hendrixson

Proceedings of the Iowa Academy of Science

In the course of my work a year ago on Silver as a Reducing Agent, in which the action of finely divided silver on chloric, iodic and chromic acids was studied quantitatively, there was occasion to study the literature relating to the action of chloric and related acids on other metals. It soon appeared clear that the amount of information to be gained about the action of chloric acid in particular, on the metals was very meager, and it appeared also that there were several errors, whose origin in most cases could not be traced, that had apparently come down …

Regeneration In The Crayfish, John J. Lambert

Proceedings of the Iowa Academy of Science

In working over a series of crayfishes for class purposes, certain quite suggestive facts came to light concerning the regeneration of the appendages under the conditions of normal environment. The specimens examined were mature males and females taken directly from their natural surroundings. While not imputing lack of value to experimental work in the field of regeneration, it certainly is true that nature and the laboratory are two very different things. It is therefore felt that the following notes, while preliminary in character, are of sufficient value for publication.

A Chemical Study Of Rhus Glabra, A. W. Martin

Proceedings of the Iowa Academy of Science

The Anacardiacae, or Sumach family, numbers, about four hundred species. Most of these, however, are tropical; only a few grow in the northern states. Rhus glabra, the one under investigation, is abundant and is one of the hardy species. It grows from two to twenty feet high. The flowers are small and of a greenish-red color. They grow in clusters from three to eight inches long. The fruit consists of red berries subglobular in shape and about 3 m.m. in diameter. They consist of the seed proper within a coating of felt-like husk which contains all of the coloring matter …

Notes On The Position Of The Individuals In A Group Of Nileus Vigilans Found At Elgin, Iowa, G. E. Finch

Proceedings of the Iowa Academy of Science

David Dale Owen made note more than fifty years ago of the multitudes of fragmentary specimens of Asaphus iowensis in an exposure at the junction of Otter Creek with the Turkey River at Elgin, Iowa. From then on, that locality has been classic trilobite territory. The most abundant species to be found entire there now, if good trilobites can be said to be abundant anywhere, is Nileus vigilans, which occurs both enrolled and more or less straightened in form.

New Method Of Cohesion Of Water And Adhesion Of Mercury Apparatus, Edwin Morrison

Proceedings of the Iowa Academy of Science

The difficulty of manipulating the ordinary apparatus in finding the cohesion of water and other liquids has thrown this beautiful and instructive laboratory experiment out of the reach of most students of Physics. Professor Nichols of Cornell University, says of this experiment: "The difficulties of controlling the conditions are so great, that the determination is one not to be recommended to the beginner." The first difficulty has been to accurately adjust the glass plate used in the experiment so that it will be parallel to the surface of the liquid to be tested; next, on account of the tension applied …

A Convenient Voltaic Cell, L. Begeman

Proceedings of the Iowa Academy of Science

I wish to discuss briefly a convenient form of the Lalande class of voltaic cells for which the government has recently allowed me a patent. While the cell possesses nothing startling in its newness, it yet has those advantages which make it better, I think, than any other for the purpose for which it was devised.

Flora Of Emmet County, Iowa, R. I. Cratty

Proceedings of the Iowa Academy of Science

Emmet County lies in the northwestern part of the state, bordering on Minnesota, and has an area of 408 square miles. Its surface waters mostly find an outlet in the east and west forks of the Des Moines River, both of which flow through the County in a southeasterly direction. A small part of the northeastern township, near Iowa Lake, lies in the drainage area of the Minnesota River, and its flora, therefore, is represented in Prof. MacMillan's admirable volume, The Metaspermae of the Minnesota Valley.

Remarkable Occurrence Of Aurichalcite, Charles R. Keyes

Proceedings of the Iowa Academy of Science

Good aurichalcites are among the rarer specimens in mineral collections. The peculiar feathery habit of crystallization makes the mineral difficult to handle and difficult to preserve even after being collected.

Certain Basin Features Of The High Plateau Region Of Southwestern United States, Charles R. Keyes

Proceedings of the Iowa Academy of Science

In the Basin region of Western America there exists a remarkable type of intermontane valleys to which the Spanish name Bolson has been given. The geological substructure of these plains has been recently described at some length. In the present connection some additional features are discussed.

A Preliminary List Of The Flowering Plants Of Madison County, H. A. Mueller

Proceedings of the Iowa Academy of Science

Madison is a prairie county, yet nearly one-fourth of its area was covered at some time, with timber. The surface, generally speaking, is quite undulating, becoming broken along the courses of the streams. Thus the conditions for a varied flora are favorable, from plants growing on the high prairies to those growing on the timbered hillsides, in the swamps, and along the creeks and rivers.

Program, Iowa State Normal School, Fall Term, 1902, 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.

Commencement Addresses, June 11, 1902, Iowa State Normal School

UNI Commencement Programs

Information relating to events associated with commencement ceremonies at the Iowa State Normal School.

Commencement, June 11, 1902, Iowa State Normal School

UNI Commencement Programs

Information relating to events associated with commencement ceremonies at the Iowa State Normal School.

College Catalog And Circular 1901-1902, Iowa State Normal School

UNI Programs and Courses Catalogs

Table of Contents:

State Board of Control ... 3
Calendar for 1902-1903 ... 4
Faculty 1901-1902 ... 5
Faculty Organization ... 10
Equipment - Buildings ... 11
Rules and Regulations of the Board of Trustees ... 18
Faculty Regulations and Directions ... 20
Courses of Study ... 22
Regular State Diploma Course ... 28
High School Graduate Course ... 35
Professional Course of Study ... 48
Professional Course of Study for Special Primary Teachers ... 56
General Directions and Regulations Concerning Classification ... 61
Expenses and Fees ... 67
Boarding and Lodging ... 73
The Course of Study ... 76 …

Sixth Annual Session Of The Summer Term, 1902, 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, 1902, 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.

Proceedings Of The Seventeenth Annual Session Of The Iowa Academy Of Sciences: Staff & Committee Reports

Proceedings of the Iowa Academy of Science

The seventeenth annual session of the Iowa Academy of Sciences was held in the rooms of the Iowa Geological Survey at the capitol building, December 30 and 31, 1902. In the business session the following matters of general interest were passed upon.

Comparative Values Of Different Methods Of Geologic Correlation In The Mississippi Basin, Charles R. Keyes

Proceedings of the Iowa Academy of Science

The need of a number of independent criteria in the broader work of geologic correlation has never been more apparent than at the present time. Yet for necessary reasons geologists have been slow in applying in the field what they have been convinced of in their theoretical musings.

The Chemical Composition Of Nuts Used As Food, J. B. Weems, Alice W. Hess

Proceedings of the Iowa Academy of Science

Nuts are used extensively as a luxury and their food value has been given little attention. According to the report of the department of agriculture, nuts are imported to the value of $1,518,484 in 1901, and this amount does not include the nuts which are admitted duty free. The use of nuts under the unfavorable conditions for digestion has given to them a reputation of being indigestible. If used under favorable conditions as part of the meal and not as an addition to a product which is indigestible itself, there is no reason why many of the nuts should not …

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

A Possible Origin For The Lignites Of North Dakota, Frank A. Wilder

Proceedings of the Iowa Academy of Science

The lignite of North Dakota occupies part of an area that is shared by the neighboring states of Montana, Wyoming, and South Dakota, and by Assiniboia on the north. The total area of this lignite field in the United States alone is 70,000 square miles, apportioned as follows: North Dakota 31,500, Montana 25,000, Wyoming 9,000, and South Dakota 4,500. It is probable that all of this field does not contain lignite beds of workable thickness, but studies carried on in North Dakota and Montana during the past summer indicate that thick beds are very general, and that often a series …

Constitution Of The Iowa Academy Of Sciences

Proceedings of the Iowa Academy of Science

No abstract provided.

Program, Iowa State Normal School, Winter Term, 1901-02, 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.

Living Plants As Geological Factors, B. Shimek

Proceedings of the Iowa Academy of Science

The importance of water as a geological agent, both constructive and destructive, is so great and its effects are everywhere so patent, that by contrast the importance of other agents is underestimated, or in large part over looked. Among these underestimated agents plants may be classed so far as their modern work is concerned.

The Preparation Of Ammonia Free Water For Water Analysis, J. B. Weems, C. E. Gray, E. C. Myers

Proceedings of the Iowa Academy of Science

The preparation of water which will not give the yellow coloration with Nessler's reagent is an important problem in the analysis of water. Where the laboratory water supply contains a small quantity of ammonia, suitable water for use in water analysis can no doubt be obtained by ordinary distillation and collecting that part of the distillate which is free from ammonia. The water supply of many laboratories will not permit of this ready method of preparing ammonia free water. The distilled water must be redistilled with sulphuric acid and potassium permanganate to obtain a satisfactory water which will remain colorless …

The Solar Surface During The Past Twelve Years - A Review Of Sun-Spot Observations Made At Alta, Iowa, From 1890 To 1902, David E. Hadden

Proceedings of the Iowa Academy of Science

The following paper is a resume of a series of sun-spot observations commenced by the writer in 1890, August 1st, and continued without interruption, except by cloudy weather and other unavoidable causes —such as sickness or absence from the city— until the present time.

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

Proceedings of the Iowa Academy of Science

The Figwort family comprises nearly 2,500 species, which are grouped in about 165 genera. The species are quite widely distributed, but are most abundant in temperate regions, occurring rarely towards the poles and equator. Heller, in his Catalogue of North American Plants, includes 51 genera and 627 species and varieties belonging to the Figwort family. The flora of Iowa has representatives of 21 genera, there being about 45 species.