Digital Commons Network^™

The Extraction Of Gold And Silver From Ore By The Cyanide Process, Isaac Peter Frazier, Claude Egan Jamison

Bachelors Theses

"The object of our investigation was to determine whether the ore could be treated by the Cyanide Process, and to find the conditions for maximum extraction. The following points were investigated:- 1. Best size for maximum extraction. 2. Best strength of solution. 3. Minimum length of time for maximum extraction. 4. Minimum amount of cyanide solution required"--page ii.

Geological Conditions And Genesis Of The Ore Deposits Of The Rush Creek District, Marion County, Arkansas, William Melvin Weigel

Bachelors Theses

No abstract provided.

The Determination Of The Fusing Point Of A Few Igneous And Metamorphic Rocks, Fred H. Perkins

Bachelors Theses

"There are two methods of arriving at the refractoriness of a rock. One is the physical, the other is the chemical. The physical methods attempt to determine it directly by subjecting it to heat, and the temperature obtained is registered by use of numerous methods, a type of each kind I will describe in this paper. The chemical methods attempt to arrive at the result by calculations based upon a chemical analysis, though one or more physical determinations have to be made as a basis for these calculations. As the former method is direct, my operations are based upon this …

Design Of A Mill For A Cyanide Plant, Charles A. Fach

Bachelors Theses

"Object. Designing a mill, which according to my ideas, would be the best in practice. The machinery used in practice at the present time, is mostly old style. In this work of mine I have substituted a great deal of lately invented machinery which would give much better and quicker results than the machinery now used. Many ideas have come to me while working on this subject which I think would assist me in any further work on the subject"--page 1.

The Mining & Construction Of A Smelter For The Production Of Zinc-White From Western Lead-Zinc Ores, Hector George Sylvester Anderson, V. B. Hinsch

Bachelors Theses

"On account of the high price of the old Dutch process of making white lead and the undesirability of sublimed white-lead as the bulk of the pigment, the use of zinc-white as an adulterant of the lead-white made by the old Dutch process is new extensively used by all paint manufacturers. The advantages of its use in conjunction with white-lead in the manufacture of white paints is the fact that it does not combine with sulphur as does white-lead itself. The specifications of the U. S. Light-house Dept. require 75% of zinc-oxide and 25% of white lead as a mixture. …

Comparison Of Greek And Latin Christianity, Elvet Eugene Moorman

Manuscript Thesis Collection

No abstract provided.

Thesis On Demonology, James H. Stevens

Manuscript Thesis Collection

No abstract provided.

Enforcement Of Stockholders' Liability In Kansas Corporations, John Morris Sutton

Historical Theses and Dissertations Collection

No abstract provided.

Collisions In United States Admiralty Jurisdiction, Burton Hoag Brownell

Historical Theses and Dissertations Collection

No abstract provided.

A Proposed Non-Support Law, Charles Herbert Bass

Manuscript Thesis Collection

A study of how laws requiring support of families can help society.

Die Heimat, Bertha M. Mason

Manuscript Thesis Collection

Translated from the original German.

The Drama In Relation To The Spirit Of The Age, Emily M. Helming

Manuscript Thesis Collection

No abstract provided.

Modern Development Of The German Drama, Mary De Forest Marsee

Manuscript Thesis Collection

No abstract provided.

Creative Criticism, Edith Keay

Manuscript Thesis Collection

No abstract provided.

Locke's Relation To Deism, Charles Jeff Groarty

Manuscript Thesis Collection

No abstract provided.

Electrolysis Of Water In A Copper Sulphate Solution, Hermann Otto Schulze

Bachelors Theses

No abstract provided.

The Evolution Of Cooking Apparatus With Some Tests With The Aladdin Oven, Hattie Dibble

Electronic Theses and Dissertations

Inventions are but brought forth spontaneously; they are a growth. We cannot conceive of a mind which is capable, without the aid and thoughts of other minds of investing anyone of the many machines and apparatus which so far assist in lightening and perfecting man’s work. The most of our inventions are new combinations of other inventions made to serve men purposes. It will be the endeavor of this paper to show this growth as it is manifested in cooking apparatus, by showing its evolution from the very crudest forms up to the present degree of perfection.

The Neocene Lake Beds Of Western Montana And Descriptions Of Some New Vertebrates From The Loup Fork, Earl Douglass

Graduate Student Theses, Dissertations, & Professional Papers

Since coming to Montana in the spring of 1894 I have spent rnuoh of ay time in studying the lake bed deposits in the western part of the state, and in collecting and studying the vertebrate fossils found in them. These deposits occur in nearly every large valley in the westem part of the state. I have myself observed them in the valleys of the upper Missouri (above the re-rrion of Helena), Gallatin, Madison, Jefferson, Beaverhead, Ruby, Big Hole, Hell Gate, and Bitter Boot rivers, and their tributaries.

Influence Of Time And Temperature In The Roasting Of Sulphides, Roger Hanson Hatchett

Bachelors Theses

"The original object of this work was to determine the relation between the quantities of oxide and sulphate formed in roasting a sulphide under known conditions of temperature, time and supply of air. But difficulties arose in constructing apparatus, which in the short time allotted could not be overcome. These are mentioned in description of apparatus, and were of such a nature that the relations between products and conditions are for the most part qualitative"--page 1.

Design Of A Mining Plant, George C. Clark

Bachelors Theses

"It is to be hoped that in the perusal of this short discussion, the idea will not be lost sight of that the work has been done by a novice - probably a needless caution as the fact is patent at every step. Again, while the work is supposed to be laid along practical lines, no attempt has been made to abbreviate and show merely what is absolutely necessary. As the subject is treated as a thesis and not as a proposition to contractors, the attempt has been made to show the method of arriving at conclusions, and when necessary …

Action Of Caustic Hydroxides Upon Aluminum, Herbert Fordyce. Rogers

Bachelors Theses

No abstract provided.

Assay Of Copper Matte For Gold And Silver, Walter E. Soest

Bachelors Theses

"Ores containing copper, and especially copper matte, have always been very annoying in assaying for the precious metals. In assaying copper matte, and ores containing much copper, by the usual method of scorification, the losses of silver an gold are considerable, owing to the fact that in order to obtain lead buttons, which are soft and free from copper, repeated scorifications are necessary, and moreover it is impossible to obtain lead buttons which are entirely free from copper"--page 1.

Cement Testing, Arthur D. Terrell

Bachelors Theses

"For a Thesis in 1898 I did some work on cement testing with very satisfactory results, but I did but little more than get a few ideas as to how to conduct the experiments to best advantage. For the present year I have taken up the work for further investigation"--page 1.

Design Of A Three Hinged Arch Steel Bridge, Hermann Otto Schulze

Bachelors Theses

No abstract provided.

The Strength Of Cement Under Different Conditions, Francis Joseph Tayman

Bachelors Theses

"Derivation of some Empirical Formulae, showing relation between breaking strength, and various functions which enter into Cement testing. We find a great deal of experimental work done in Cement testing, also some curves plotted, but there are but few equations fitted to these curves, this, then, is the object of the present work. In this work a great many interesting points have been made manifest, most of them are of no practical value but merely of interest in themselves. The work has been on several of the most important ones, to be given subsequently. On these and a few others …

Gold Chlorination, Edwin Thompson Perkins

Bachelors Theses

"In a process of gold chlorination recently introduced and apparently used with success in Southern Australia, potassium permanganate, common salt and sulphuric acid were used as the generators of the chlorine. A series of experiments was made to determine the efficisacy of these reagents and for developing chlorine as compared with other methods in use"--page 1.

Some Quantitative Experiments On The Electro-Deposition Of Copper, Jerrold Roscoe Underwood

Bachelors Theses

"The object of these experiments was to determine in a quantitative way the effect or effects, if any, of these various metals on the purity of the copper precipitated electrolytically. The material worked with was from a copper anode from ( ) carrying a silver, a trace of gold, arsenic and antimony as well as other metalic sic impurities"--Object, page 1.

Pennsylvania Coal Fields, Arthur D. Terrell

Bachelors Theses

"The use of mineral coal dates back before the Christian Era.

The mining of coal, however, is much more recent.

About the 18th century coal mining began to be scientifically executed.

The area of Anthracite coal fields in Penn. is not quite 500 square miles included in outcrop lines of its lowest beds"--page 1.

Plans For Humansville Waterworks, James O. Hendricks, Howard Joshua Taylor

Bachelors Theses

"Humansville is a thriving town of about 1200 inhabitants, situated in Polk county, Missouri, about 120 miles Southeast of Kansas City, with which city it is connected by the Kansas City and Memphis Railroad. The object of this Thesis is to design a system of waterworks for Humansville"--page ii.

Government By Injunction, Henry Merton Merrihew

Historical Theses and Dissertations Collection

No abstract provided.