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A Metallographic Study Of Copper Mattes, Edward James Torrence

Bachelors Theses

"The metallographic knowledge of copper mattes or mattes in general for that matter, although extensive, is, to put it mildly, rather diversified. One authority, for instance, believes that mattes are sulphide dissolving compounds there being no eutectiferous series involved. Another believes that the matte constituents enter into a eutectiferous series, compounds being present. Still a third contends that there are no compounds formed but that a simple eutectiferous range exists between certain limits outside of which the end members of the series form solid solutions with each other. In so far as there exists seeming absolute proof for all of …

The Hebraic In Matthew Arnold, Margaret A. Beede

Theses and Dissertations

No abstract provided.

The Teaching Of Arithmetic In The Elementary Schools Of North Dakota, Clyde R. Travis

Theses and Dissertations

No abstract provided.

Concerning The Degree Of Self Fertilization In Corn (Zea Mays Indentata) That Is Obtained Under Normal Field Conditions, George Janssen

Electronic Theses and Dissertations

"Like begets like”. This well-known phrase which aroused so much comment among students in genetics and animal breeding has almost unconsciously become an adage to a part of their philosophy. Whatever truth or lack of it is associated with these words we admire the keenness of observation of him who wrote them. However significant the words "like begets like" could it be strictly adhered to our problem in breeding a cross-fertilized population would be greatly lessened. Much has been done in plant and animal breeding and the methods employed in accomplishing the greater part is without written history. Here and …

Design And Construction Of The Experimental Mine, Robert Knox Stroup

Masters Theses

"The mining laboratory and experimental mine at the Missouri School of Mines was opened in 1913. At a suitable location, on the site of an old dolomite quarry, one and one half miles southwest of town a tunnel was started into the hillside and the necessary plant erected. This plant consisted of a fifty horse-power Erie Iron Works boiler of the modified locomotive type, and an Ingersoll Rand type 10 single stage duplex air compressor of a capacity of one hundred cubic feet of free air per minute. This plant was in operation during the fall months of each year …

The Effect Of Diet Of The Cow And The Pasteurization Of Milk In Closed Bottles Upon The Nutritive And Antiscorbutic Properties Of Cows' Milk, George C. Biggar

Electronic Theses and Dissertations

Probably no discovery in the scientific world, and especially in the field of nutrition, has excited more interest in the past few years than the finding and naming of the three hitherto unknown food factors known as vitamins. For many years it has been observed that certain diets for man that apparently are satisfactory as far as their nutritive value is concerned, still seem to lack something necessary for normal growth and function, or else lead to some serious disease. For example it has been known for centuries that sailors on long ocean voyages where the diet consisted largely of …

The Trend Of Foreign Trade With Argentina, Wallace Sawyer

Bachelors’ Theses

The republic of Argentina is in size the third largest of the American republics. Because of its great length about 2200 miles, its climate and products range from the tropical to the arctic. It has an area of about 1,139,400 square miles. The physical characteristics of the country are generally vast plains with the exception of the western part which is broken up by the Andes Mountains.

Bridge Over Pitman Creek In Pulaski, David Mccord Phelps Jr.

Theses and Dissertations--Civil Engineering

Accounting of all aspects of the erection of the bridge over Pitman Creek in Pulaski County Kentucky.

Testing For Journalistic Aptitude, Lawrence William Murphy

Theses and Dissertations

No abstract provided.

American And Canadian Diplomacy, 1815-1860, Mary Amelia Fowler

Theses and Dissertations

No abstract provided.

The Middle Ordovician Section In East Central Missouri, Morris James Ingerson, Josiah Bridge

Masters Theses

"One of the most serious difficulties confronting anyone working on stratigraphic problems in the Ozark area is the lack of detailed faunal lists of the various formations. A great deal of general work has been done, but very few detailed faunal studies have ever been published, and correlation of the Missouri section with sections in adjoining states is often difficult.

In a recent paper, Dake has discussed the origin and correlation of the St. Peter sandstone. In this study he found considerable difficulty in correlating the various formations above the St. Peter, and at his suggestion, the present study was …

The Equilibrium Of The Reaction Zn + Co₂ = Zno + Co, Clarence Ware Burkhart

Masters Theses

"Many attempts have been made in the last twenty years to smelt zinc ores in the electric furnace. The disadvantages of the present retort process have been discussed so often that they need not be dwelt upon here. The principle ones are, the low thermal efficiency of the retort furnace, low metal recoveries, small smelting units necessary, short life of the retorts and the difficulty of treating impure and low grade ores. Electric smelting offers remedies for most of these difficulties"--Introduction, page 1.

Determination Of The Solubilities Of Lithium, Sodium, And Potassium Sulphates In Absolute Methyl And Ethyl Alcohols, Jennie Lynn Lenox

Masters Theses

"It was thought by the author that there might be some relation between the solubility of a salt in the alcohols and the position of those alcohols in the series of monohydric alcohols; that is, that there should be a definite increase or decrease in the solubility of any particular salt in going from a higher to a lower alcohol. The object of this paper was to find the solubilities of some simple salts in as pure alcohol as could be prepared, and to find any relationships if possible"--page 2.

The Action Of Tan Bark In The Manufacture Of White Lead By The Old Dutch Process, Elmer List

Masters Theses

"This investigation was undertaken because there is very little definite information in print, regarding the micro-organisms which play such an important part in the Old Dutch Process for manufacturing white lead. The statements concerning this process are very general in character. For instance, one book states, "The first action which goes on is to convert blue lead into basic acetate of lead. This is brought about by the heat of the fermenting tan, causing the evolution of acetic acid from the liquid of the pots." Albert H. Hooker in a little treatise on white lead says: "As it stands now, …

Investigations In Colloidal Phenol, Charles James Millar

Masters Theses

"In making some experiments with various colloids it was noticed that phenol and water seemingly formed a colloid, so it was deemed advisable to experiment farther and see if this fact could be established. The references on this subject vary widely and for this reason some of them are given here. Ostwald recognised [sic] the colloid state of a phenol-water mixture at the critical temperature but evidently failed to see the possibility of the phenol-water colloid at all temperatures. In the following article I will try to show that the phenol-water mixture forms a colloid, not only at the critical …

Drill Steel Investigation, Richard J. Stroup, Kurt H. De Cousser

Masters Theses

"

Purpose of Investigation

To determine the best composition of a straight carbon drill steel for drilling in granite.

Method of Investigation

1. Obtain several brands of standard grade drill steel. Determine analysis and transformation points of each.
2. Determine that heat treatment which gives the best drilling qualities in granite.
3. Determine the micro-structure of such steel.
4. Obtain steel of a certain specified composition considered best for the conditions and compare the results on this steel with the results obtained on the market products.
5. Design of heating furnace for forging steels.

It will be observed from what follows that this outline was …

Drill Steel Investigation, Joseph Herman Rohloff

Masters Theses

"Several brands of standard grade drill steel were obtained [and tested]"--page 1.

High Speed Steel - Its History, Development, Manfacture, Metallography, And Constitution, Including An Extended Bibliography, James Presley Gill

Masters Theses

"There is no doubt but that the making of Steel was known and practiced by the early Greeks probably several centuries before the birth of Christ. There have been discoveries of pre-historic forges and smelters evidently used for the making of iron and steel and it is certain that implements made of these materials dates back to antiquity. As to the methods of making the steels of antiquity there is little known, but it is quite probable since iron has a strong affinity for carbon that in the forging of the iron it's contact with the carbonaceous fuel would absorb …

The Social Survey As An Agency In Social Work, Mildred Ihrig

Theses and Dissertations

No abstract provided.

Federal Policy Toward Water Power Development In The United States, Elisabeth Agnes Kelley

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Maladjustment In The Public School System, Some Controlling Factors : A Relief Proposed In Educational Measurements, William Ashton Gamble

Theses and Dissertations

No abstract provided.

A Chemical And Morphological Study Of Nicandra Physalodes (L) Pers., Anton Hogstad

Electronic Theses and Dissertations

Among the various plants that have been placed under cultivation in the Medicinal and Poisonous Plant Investigations Gardens of the South Dakota state College of Agriculture and Mechanic Arts School of Pharmacy, has been that of Nicandra Physalodes (L) Pers., commonly known as the Apple of Peru. This plant has been under cultivation in the gardens since 1918, the seed having been received from Professor E. L. Newcomb, Director of the University of Minnesota College of Pharmacy Drug Gardens, in the Fall of 1917. Professor Newcomb reports that the seed had been purchased from Haage and Schmidt, Erfurt, Germany, in …

Training For Citizenship, M Cleveland Hayes

Theses and Dissertations

No abstract provided.

The Study Of Ionic Activities By Means Of Concentration Cells. 1. The Activity Of The Hydrogen Ion In Solutions Of Monochloracetic Acid, Ernest D. Coon

Theses and Dissertations

No abstract provided.

A History Of The Treatment Of Insanity In Massachusetts, Robert U. Cooper

Historical Dissertations & Theses

In this thesis, an attempt has been made to sketch the progress in the treatment of mental disorders, from the earliest records to the present time. The introductory account of the conditions before the seventeenth century briefly considers the methods employed in Europe and Northern Africa prior to that date, while the main narrative is confined principally to the advancement achieved in Massachusetts since the Colonial days. For the sake of convenience and clarity, the legislative progress, the development of institutions and the improvement in methods of treatment, have been separated, as far as expedient, in the presentation of the …

Sewage Disposal Of The City Of Milwaukee With Experimental And Construction Features, Walter W. Genrich

Bachelors’ Theses

The City of Milwaukee, for a good many years has been confronted with the big problem of sewage disposal, in asmuch as the sewage up to the present time has been allowed to flow into its rivers which in turn emptied into Lake Michigan from which the City obtained its water supply, and consequently contaminated its surrounding waters to such an extent that the City's public health was very much at stake.

Localization Of The Motor Area In The Brain, Marian Josephine Xander

Biology Honors Papers

This 15 page thesis examines theories of brain function, localization of sense and motor area and experimental methods.

Thomas W. Gilmer, Rebekah V. Lawson

Honors Theses

It often happens that the names of some men, who had a large part in shaping the past policies of our country, are not now current in the thoughts of the average student of history. It is left to biographical monographs of this nature to review the lives of these men. With this ever increasing group of names may be placed that of Thomas Walker Gilmer. He was influential in the affairs of his native state, Virginia, during the decade from 1830 to 1840. This was the period when Southern leaders really dominated national affairs and Virginia was not racking …

History Of The Churches Of Louisville With Special Reference To Slavery., Homer E. Wickenden

Electronic Theses and Dissertations

In the one hundred and forty years of Louisville's existence, it has grown from a log cabin settlement with no churches to a city with 269 churches and church property valued at over $30,000,000. It is impossible to measure the moral and religious force that they have exerted on the city. It can best be appreciated when one thinks of what the city would be without them. Few of us would care to live in such a city. In the field of education, Louisville churches have contributed much. Some of the first schools in the city were conducted by ministers, …

A History Of The Theatre In Louisville., Mary Martha Dietz

Electronic Theses and Dissertations

A child is considered by some psychologists to pass through on its way to manhood the stages through which the race has passed on its way to civilization. If this is true of a single man, might it not equally be true of a community of men? Have not most settlements, in greater or a less degree, passed through the stages of development common to the growth of all cities until they have reached the standards of their day? A company of civilized men and women going forth to make a settlement in a new place, upon their arrival at …