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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. …

Thesis For Degree Of Bachelor Of Science In Mining Engineering [A Fire Clay Of Missouri], Howard Joshua Taylor

Bachelors Theses

"The clay examined is a fire clay of Missouri, varying in color from white, in pure specimens, to yellow or brown when stained with iron. It is opaque with a luster, varying from dull to pearly, an argillaceous odor and unctous feel"--page 1.

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 Aluminium, Victor Hugo Gottschalk

Masters Theses

No abstract provided.

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

Bachelors Theses

No abstract provided.

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.

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.

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.

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 …

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

Bachelors Theses

No abstract provided.

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.

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.

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.

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.

The Manufacture Of Portland Cement, Herman C. Cowen

Professional Degree Theses

"The principal characteristics which, in the process of manufacture, sharply and clearly distinguish Portland cement from Limes, Hydraulic Limes, and other Hydraulic cements, are the necessity for carefully proportioning and finely grinding the raw materials to insure a homogenous [sic] mixture, and the extremely high temperature at which it must be burned in order to insure a sound a trustworthy product"--page 1.

Studies In Tellurium, Victor Hugo Gottschalk

Bachelors Theses

No abstract provided.

Hydraulic Air Compressors, Euart Carl Torrence

Bachelors Theses

No abstract provided.

The Electrolysis Of The Water Of A Copper Sulphate Solution, Ralph Barker

Bachelors Theses

"The idea prevails generally, that when an electric current is passed through a copper sulphate solution, the water will be electrolysed sic when the difference of potential between the electrodes reaches about one and one-half volts. The object of the experiments detailed below was to determine whether or not the density of the solution has any effect on the electrolysis of the water, and if any such existed, to find out if there was any relation between them"--page 1.

Derivation Of Some Empirical Formulae, Showing Relation Between Breaking Strength And Various Functions Which Enter Into Cement Testing, Arthur D. Terrell

Bachelors Theses

"Although we find a great many results of experimental work in cement testing, and some curves plotted, there seems to have been very little attempt made toward fitting equations to these curves. This then leaves an opening for original investigation. During my experiments quite a variety of interesting points have been made manifest. Most of them are of no practical benefit, but merely of interest in themselves. My work has been on a few of the most important ones, which will be given subsequently"--page 1.

A Day In The Estimating And Designing Room Of A Bridge Contractor, Felix John Kersting

Professional Degree Theses

"The following designs are supposed to be made for the contracting department of a bridge shop or contracting firm, with a view of being submitted in competition. The competitors in the field of structural steel in this Western Territory are as numerous as in the East, though most of the shops are located there. There are small shops in St. L., Chicago, Minn., Milwaukee and points in Ind. and Ohio. The American Bridge Co. fabricates 60% of the structural steel now used in this country"--page 6.

Some Experiences With A Pan Amalgamation Mill, Guanacevi, Mexico, Arthur J. Stewart

Bachelors Theses

"The work of the chemist and assayer at a pan amalgamation mill is cheifly sic routine work. The work of one day differs, generally, very little from the work of an other day. But occasionally some contingency arises which taxes his ability to the utmost"--page 2.

Design Of A 240' Through Span Railroad Bridge: Including Analysis Of Stresses Due To Concentrated Wheel Loads, Design Of Individual Members, And Drawings Showing Stresses, And Details, L. C. Torrence

Bachelors Theses

"The Span length will be 240' center to center of end pins. Truss to be square ended, Track straight. Live load to consist of two engines, concentrating 289 tons over a length of 104' followed by a uniform train of 2.1 tons per linear foot"--Page 1.

Hydraulic Separation, Albert Edwin Eardley, John Simpson Cameron

Bachelors Theses

"Before beginning a discussion of the various experiments performed with the hydraulic separators in the Laboratory of the S. of M., a brief statement as to the principle upon which their working depends, and their functions in the dressing of ores should be given. The crude ore when first delivered from the mine is usually not of sufficient richness to be economically handled by the smelters; it therefore becomes necessary to eliminate as far as possible that part of the ore which is of no material value, and among the various forms of apparatus now in use for this purpose …

Contact Plane Concentration, John A. Rogers, George Walter Dean

Bachelors Theses

"Contact plane concentration depends upon the principle that a thin sheet or film of water flowing over a plane surface may be so adjusted that its quantity and velocity are just sufficient to bear away the lighter particles of gangue, leaving behind only the heavier particles of the mineral to be concentrated, adhering by friction to the plane, the concentrates being removed by any convenient method. Thus we see it is best adapted to the concentration of minerals having widely differing specific gravities but may be used for the concentration of all ores and minerals with any specific gravity whatsoever"--page …

Water Supply Of Rolla, Missouri, Perry B. Anderson, Felix John Kersting

Bachelors Theses

"An essential feature of a prospering town is a system of water supply, to protect property from losses by fire and to furnish water for domestic use. Rolla, a town of about fifteen hundred inhabitants, is without a proper water supply, in consequence of which it has suffered many losses to property, which could have been averted, or at least diminished, had the proper protection been at hand. At present the only fire protection the business part of town has, is derived from one large cistern placed on the principal street, while the protection for the residence portion, is derived …