Digital Commons Network^™

Copper Smelting In A Rotary Furnace With Pulverized Charcoal, Elmer Cooper Heck

Professional Degree Theses

"This process is in use at the Verde Grande Copper Company's plant, located thirty-two miles north west of Hermosillo in the state of Sonora, Republic of Mexico, and is yet experimental"--page 1.

Square Set System Of Timbering As Employed By The Shannon Copper Co., Ray Eugene Hoffman

Professional Degree Theses

"The properties of The Shannon Copper Co., consisting of mine and smelter, are located in the Southeastern part of Arizona in what is known as the Clifton-Morenci District. The smelter is located at Clifton and the mine at Metcalf, eight miles distant on an iron capped mountain known as Serro Preito.

From a geological standpoint the ore deposits of the Clifton-Morenci District are a freak. There are no fissure veins of any consequence in the district; all the large deposits are found in bodies, the ore usually occurring in a soft porphyry.

Underlying the iron capping on the Shannon property …

Report Of La Mina Boquillas Del Carmen, Of Coahuila, Mexico, James Asa Gregory

Professional Degree Theses

"The several denouncements embracing the group known as the Boquillas Del Carmen Mines are located in the western foothills of the Boquillas del Carmen range, and about eight miles in an air line, east of the small town of Boquillas, just across the Rio Grande River and in the state of Coahuila, Mexico"--page 1.

Street Pavements In St. Louis, Earl B. Morgan

Retrospective Theses and Dissertations

Looks at pavement choices in St. Louis, Missouri based on various factors. Compares with other U.S. cities.

Effect Of Arsenic On Assay For Gold And Silver, Rosco Conkling Ham, Frederick Arnold Moore

Bachelors Theses

"In presenting the within thesis, it is not claimed by the authors that the experiments have been, by any means, exhaustive of the subject. Neither is any claim made to original research work other than a series of simple experiments with a view to determining, if possible, some of the more important effects of Arsenic upon a fire assay for gold and silver as met with in the ordinary assay laboratory. To make a work complete and exhaustive on such a subject will require much more time and more complete apparatus than was available in the experiments covered by this …

Effects Of Copper On The Cupellation Of Silver, Charles A. Baker, Miles Sedivy

Bachelors Theses

"The object of this work is to find the effect of copper in the cupellation of silver. Our method of attack was: 1st. To find the effect of varying the amount of copper with constant lead and constant temperature. 2nd. Effect in cupellation of varying the temperature and the lead in the presence of a constant amount of copper. 3rd. To determine the rate at which the copper is removed during cupellation"--page 1.

The Effect Of Certain Minerals Upon The Volatilization Of Silver Chloride, Boyd Dudley Jr.

Bachelors Theses

"The work undertaken in this investigation was first suggested in connection with the analytical determination of Silver and Chlorine by weighing silver chloride. Later, however, the experiments assumed a metallurgical character. The final purpose of the experiments was to determine the effect of a few of the common mineral constituents of ores on the loss of silver during a chloridizing roast. In the metallurgy of silver it is frequently necessary to change the silver bearing minerals into silver chloride"--page 1.

A Report On The Shattuck And Arizona Mine At Bisbee, Arizona, John Joseph Sanford

Bachelors Theses

"The Shattuck and Arizona Mine is about one-half mile southwest of the town of Bisbee and five-sixteenths of a mile west of the Holbrook shaft of the Copper Queen property. The mine is on the east slope of Escanbrosa Ridge and a quarter of a mile up Uncle Sam Gulch. It adjoins the Uncle Sam Mine on the north and the Cuprite, a Copper Queen property, on the east"--Location, page 1.

A Manual For Use In Connection With The Masterpieces Of The First Three Courses In English Required By The State High School Board In Their Bulletin Issued August, 1907, Katrine Belanger Macdonald

Theses and Dissertations

No abstract provided.

Historical Conceptions Of The Ego, William Pippy

Theses and Dissertations

No abstract provided.

The Sources Of The Income Of The Public Schools Of The State Of North Dakota, N. C. Macdonald

Theses and Dissertations

No abstract provided.

Evidences Of The Divinity Of Jesus: As Recorded In The Gospel Of John, Shelley D. Watts

Manuscript Thesis Collection

No abstract provided.

Design, Specifications And Cost Estimate Of Two Hundred Ton Stamp Mill And Cyanide Plant For Treatment Of Gold Ore, John Payne Sebree, William Peter Hatch

Bachelors Theses

"The object of this thesis is the designing and a mill, writing specifications for same, and furnishing complete cost of entire plant to treat 200 tons of gold ore"--page ii.

The Design Of Main Street Reinforced Concrete Arch Over Frisco R. R., Hyman Zirulick

Bachelors Theses

"Owing to the cheapness and durability of reinforced concrete, the tendency of the present time in Engineering practice is to build new and replace old structures with reinforced concrete. Therefore, in taking up a subject for a thesis, I have selected, The Investigation of the Design of a Reinforced concrete Arch," or, as I named it, "Main Street Reinforced concrete Arch over Frisco Railroad"--Introduction, page 1.

Analyses Of Limestones And Shales, Byron John Snyder

Bachelors Theses

"The limestones were analyzed to determine their value for cement and lime manufacture, and were taken from several counties in the state of Missouri. Most of the limestones examined were very pure. A considerable quantity of well burned lime is added to other material in the manufacture of cement, a lime of very pure type being the most acceptable in this work"--page 1.

Chemical And Physical Analysis Of Steel And Iron, John T. E. Ericson

Bachelors Theses

No abstract provided.

Meridian-Projecting Instruments And Methods, Albert Babbitt Bartlett

Bachelors Theses

"The writer's attention was called to the necessity of knowing the accuracy attainable in surveying which must depend upon the Meridian, and therefore be subject to the accuracy of it, in seeking information by which to decide what would be the most desirable transit to use in the West, particularly for United States Deputy Mineral Surveying. Descriptions of the manipulation, adjustments, and the cost, etc., of the various appliances are plentiful in the text-books on surveying and in the various catalogues; but there was no very definite information in regard to the actual probable and average accuracy, especially in the …

Lime Roasting Of A Galena Concentrate With Subsequent Smelting In The Blast Furnace, Aubrey P. Fellows, Tsik Chan Tseung, James Carter Long, Edwin Richard Wash

Bachelors Theses

"Having on hand a quantity of Galena concentrates, which we wished to treat in the blastfurnace accompanied by a usual previous roast, but having no reverberatory furnace, we decided to experiment upon the ore with lime roasting as invented by Savelsbury, to see if it was practicable"--page 1.

Design Of A Lead Blast Furnace, Walter Irving Phillips, Andrew Jackson Seltzer

Bachelors Theses

"In order to get the approximate size of the Furnace we made the following assumptions, being guided as far as possible by the practice of the Globe Smelting Works at Denver, Colorado whenever that could be ascertained"--page 1.

The Evolution Of Jefferson Davis As A Political Leader, Sveinbjorn Johnson

Theses and Dissertations

No abstract provided.

The Influence Of Old Norse Literature On English Literature In The 18th And 19th Centuries, Martin Brown Ruud

Theses and Dissertations

No abstract provided.

Process Of Treating Slimes In Ore Reduction, Gustavus A. Duncan

Professional Degree Theses

No abstract provided.

The Composition And Analysis Of Zinc-Lead Pigment, Evans Walker Buskett

Professional Degree Theses

"Zinc is present as oxide and sulphate. There are also probably zinc and lead sulphites. It has been suggested that there may be carbonates in this pigment, but this is not probable as the high temperature of the furnace, the complete combustion of the fuel to CO2 and the large excess of SO2 gas in the bagroom would tend to prevent their formation. There is also a chemical combination between the zinc oxide and the lead oxide which is probably a zinc plumbate. Some light can be thrown on the subject by the following experiments:"--page 1.

Efficiency Of Mill Practice In The Joplin District, Ira Lee Wright

Bachelors Theses

"Milling in the Joplin District is, compared with the practice in other zinc fields, seemingly very crude. To one unacquainted with the peculiar conditions of this district, the amount of ore which goes into the tailing pile seems unnecessarily high. There are several things which account for the low saving made"--page 1.

Treatment Of A Low Grade Gold Ore, Paul Richardson Cook, Sakuhei Sunada, Arnold George Baker

Bachelors Theses

No abstract provided.

Plans, Estimates And Specifications For A Sewer System For The City Of Plattsburg, Eldon E. Cook, William C. Perkins

Bachelors Theses

"Plattsburg, Missouri is a thriving city of about two thousand population. It is situated in the heart of the most fertile Missouri land. Three railroads - Atchison, Topeka and Santa Fe.; Chicago, Rock Island and Pacific; Quincy, Omaha and Kansas City - give easy access to St. Joseph, thirty miles distant, Leavenworth forty miles, or Kansas City, forty-one miles; respectively. The city is growing steadily and will in a few years be of such size that a sewage system will be necessary. We therefore submit the following plans, specifications and estimates. Since the city could not afford both Stone Sewers …

Graphical Representation Of Compressed Air Formulae, John Thomas Vitt, Paul Andrew Philippi

Bachelors Theses

"Air during compression and expansion obeys the same laws as do other gases and these laws have been mathematically stated by purely rational formulae. Most of these formulae are logarithmic and their use involves a considerable amount of work. The object of this thesis is to present these formulae in such form that problems involving their use may be readily and easily solved. It was decided to present them graphically and the accompanying curves are the results of our labors"--page 1.

An Investigation Of The Treatment Of A Silver Ore By Lixiviation With Sodium And Cuprous Thiosulphate Solutions, Elston Everett Jones

Bachelors Theses

"The object of this investigation is to find whether the ore can be treated with profit by lixiviation and to find the best conditions for maximum extraction"--page 1.

Alternating Currents, Arthur W. Webb, Evan John Macilraith

Undergraduate Theses and Senior Projects

No abstract provided.

Design Of A Hydro-Electric Lighting Plant, John Emil Inberg

Undergraduate Theses and Senior Projects

No abstract provided.