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The Method Of Mining And Milling At The Rosiclare Lead And Fluor Spar Mines, Arthur Harrison Cronk Jan 1915

The Method Of Mining And Milling At The Rosiclare Lead And Fluor Spar Mines, Arthur Harrison Cronk

Professional Degree Theses

"The American fluor spar mines of economic importance are located in the Southern part of Illinois and Western Kentucky. The largest mines are in Hardin County, Illinois, Those in Kentucky are in Crittenden, Livingstone and Caldwell Counties. At the present time the Illinois mines are the largest producers. The two principal mining companies in operation are: The Rosiclare Lead & Fluor Spar Mines and the Fairview Fluorspar & Lead Mines. These mines are located about a half mile from Rosiclare which is on the Ohio River"--Location, page 1.

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A Study Of The Stoping Efficiency And Ore Transportation Of The Arizona Copper Company At Morenci, Arizona, Robert Stanley Burg Jan 1915

A Study Of The Stoping Efficiency And Ore Transportation Of The Arizona Copper Company At Morenci, Arizona, Robert Stanley Burg

Bachelors Theses

"The purpose of this paper is to give a description of the most important mining operations of the Arizona Copper Company at Morenci, Arizona, during the years 1911, 1912 and 1913. This work was planned in the engineering department by the mine superintendent, Mr. John Kiddie, while the author was employed in his office as chief mine surveyor from November 1911 to September 1913. As in other mining districts of the southwest, the rich contact and pocket, copper deposits in the Clifton-Morenci district have been nearly exhausted, necessitating the development and extraction of the low-grade porphyry deposits"--Introduction, Page 1.

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Comparative Tests Of Piston-Drill Bits, Lister Merriken Cummings Jan 1915

Comparative Tests Of Piston-Drill Bits, Lister Merriken Cummings

Bachelors Theses

"The purpose of this investigation is to compare the relative cutting speeds and efficiency of some of the different types of rock drill bits used in the piston machine, including the regular cross bit, the low center cross bit, a so-called "flat" cross bit, the "Z" bit of the southeast Missouri type, and the Joplin "Bull" bit"--page 2.

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The Electro Deposition Of Lead In Sugar And Acetate Solutions, Abe Lew Kaplan Jan 1915

The Electro Deposition Of Lead In Sugar And Acetate Solutions, Abe Lew Kaplan

Bachelors Theses

"The experiments, while hardly sufficiently numerous, seemed to indicate that sugars do not have a good effect on cathodic lead deposits"--Conclusion, page 14.

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The Electrolysis Of Potassium Lead Tartrate Solutions, Reginald Scott Dean Jan 1915

The Electrolysis Of Potassium Lead Tartrate Solutions, Reginald Scott Dean

Bachelors Theses

"Kahlenberg and Hillyer have shown that lead oxide (PbO) dissolves in neutral potassium tartrate to form a strongly alkaline solution in which the ratio of potassium to lead is 1:1. Since this solution shows a very low concentration of lead ion it might be expected to give a smooth and adherent cathode deposit. The purpose of this thesis is to determine its possible applicability as a refining electrolyte"--page 1.

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An Efficiency Test Of A Laboratory Fan, Daniel Webster Blaylock, Edward Albrecht Schroer, Elton Arthur Miller Jan 1915

An Efficiency Test Of A Laboratory Fan, Daniel Webster Blaylock, Edward Albrecht Schroer, Elton Arthur Miller

Bachelors Theses

"The principal object of these tests is to determine the efficiency of the fan when working against the different sized orifices at various speeds and pressures. Before this could be accomplished, the coefficients of discharge of the 18 in., 24 in., and 30 in. orifices had to be determined"--Object of Tests, page 4.

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Structural Material Requirements In Municipal Building Codes, August Wilhelm Gleason Jan 1915

Structural Material Requirements In Municipal Building Codes, August Wilhelm Gleason

Bachelors Theses

"An examination of the various Building Codes and ordinances of American cities shows some little variation in requirements and specifications for structural Each writer or engineer, to whom has been assigned the task of preparing the several codes, has had individual theory or rule which he embodies in the work while holding in the main to the generally accepted provisions. It is for the purpose of comparing the variations in the different codes with the hope of deducing what might be considered as standard practice, that this investigation has been started"--page 4.

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Effect Of Compression And Transmission On The Illuminating And Heating Value Of Carburetted Water-Gas, Horace Herbert Clark Jan 1915

Effect Of Compression And Transmission On The Illuminating And Heating Value Of Carburetted Water-Gas, Horace Herbert Clark

Bachelors Theses

"The object of this series of tests was to determine the effect of compression upon the candle power of carburetted water gas, as made in the daily operation of a three piece water gas machine, cooled in condensers, passed through shavings, scrubbers and oxide material, and thence into a storage holder, ready for compression and distribution. The apparatus consisted of a small Westinghouse air compressor; nine storage tanks of six inch wrought iron pipe; transfer pump; pressure regulator; standard one hundred inch bar photometer, complete, with regulators, clock, meter, pentane lamp, etc., gas analysis outfit, complete; also gages, thermometers, etc."--Page …

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The Cyaniding Of A Mexican Silver Ore, Homer Marvon Wilson, Roy Watson Griffin Jan 1915

The Cyaniding Of A Mexican Silver Ore, Homer Marvon Wilson, Roy Watson Griffin

Bachelors Theses

"The purpose of this thesis is to determine whether or not a certain Mexican silver ore is amenable to cyanidation"--Purpose, page 1.

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Flotation Applied To A Mexican Silver Ore, Albert Leo Trent Jan 1915

Flotation Applied To A Mexican Silver Ore, Albert Leo Trent

Bachelors Theses

"The object of this thesis is to determine the advisability of treating this Mexican Silver ore by flotation. To do this it was necessary to determine the degree of crushing, the kind and amount of oil, the amount of acid, the time of agitation, and the dilution of pulp, which would give the best results. From the following tests a suitable conclusion of the best conditions of this ore was determined"--Introduction, page 1.

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The Relation Of The Composition Of Petroleum To Its Origin And Occurrence, John Warder Shotwell Jan 1915

The Relation Of The Composition Of Petroleum To Its Origin And Occurrence, John Warder Shotwell

Bachelors Theses

"Petroleum Is a mixture of hydrocarbons. It is a liquid varying from colorless, through yellow and brown to black. It varies from 1.0 to 0.80 in specific gravity, which corresponds to 10° to 45° Beaume. It varies widely in physical properties, such as viscosity, ignition point, polarization of light, etc. Chemically it is composed essentially of carbon and hydrogen, but usually contains impurities such as sulphur and nitrogen. The carbon and hydrogen combine with each other to form certain series, or "chains"--Chemical and Physical Nature, page 1.

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Geological Mapping Of An Area Along The Frisco Railroad Between Cuba And Saint James, Willard Miles Benham, William Elliott Jan 1915

Geological Mapping Of An Area Along The Frisco Railroad Between Cuba And Saint James, Willard Miles Benham, William Elliott

Bachelors Theses

"The chief object of the work has been the location of the Roubidoux-Jefferson City contact, if it occurred within a mile of the railroad. Distances and positions along the track were obtained by the use of a map and by counting telephone poles. Other locations were made by obtaining their bearing and distance from these points by the use of a compass and by pacing. Elevations were carried by aneroid barometers, using the railroad elevations at mile points as bench marks. An attempt has been made to locate all important outcrops; but these are shown only on the field map. …

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A Preliminary Investigation With Regard To The Effect Of Temperature And Pressure On The Infra-Red Absorption Spectra Of The Vapors Of Some Organic Compounds, George St. J Perrott Jan 1915

A Preliminary Investigation With Regard To The Effect Of Temperature And Pressure On The Infra-Red Absorption Spectra Of The Vapors Of Some Organic Compounds, George St. J Perrott

Theses and Dissertations

No abstract provided.

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The Squirrel Cage Induction Motor As A Phase Converter, Harold Wakefield, Adolph Garben Jan 1915

The Squirrel Cage Induction Motor As A Phase Converter, Harold Wakefield, Adolph Garben

Undergraduate Theses and Senior Projects

No abstract provided.

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Shakespeare's Indication Of Scenery Through Descriptive Poetry| An Independent Study, A. Keiser Jan 1915

Shakespeare's Indication Of Scenery Through Descriptive Poetry| An Independent Study, A. Keiser

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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The Establishment Of Overland Connections Between The Region East Of The Mississippi And Red Rivers And The Territory Lying Westward To The Rocky Mountains With Special Reference To Dakota Territory, William Charles Whitford Jan 1915

The Establishment Of Overland Connections Between The Region East Of The Mississippi And Red Rivers And The Territory Lying Westward To The Rocky Mountains With Special Reference To Dakota Territory, William Charles Whitford

Theses and Dissertations

No abstract provided.

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Cell Multiplication In The Sub-Cuticula Of Dilepis Scolecina, Dalton Gordon Paxman Jan 1915

Cell Multiplication In The Sub-Cuticula Of Dilepis Scolecina, Dalton Gordon Paxman

Theses and Dissertations

No abstract provided.

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Co-Operation, William Melton Tow Jan 1915

Co-Operation, William Melton Tow

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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The Heats Of Combustion Of A Few Organic Compounds, Orin David Cunningham Jan 1915

The Heats Of Combustion Of A Few Organic Compounds, Orin David Cunningham

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Social, Religious, And Economic Status Of Women In Colonial Days As Shown In The Writings Of That Period, Sylvia M. Brady Jan 1915

Social, Religious, And Economic Status Of Women In Colonial Days As Shown In The Writings Of That Period, Sylvia M. Brady

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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History Of Early Journalism In Montana 1863-1890, William Goodheart Breitenstein Jan 1915

History Of Early Journalism In Montana 1863-1890, William Goodheart Breitenstein

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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Design Of Steel Skeleton For A Nineteen Story Building, Lester T. Powers Jun 1914

Design Of Steel Skeleton For A Nineteen Story Building, Lester T. Powers

Undergraduate Theses and Senior Projects

No abstract provided.

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The Psycho-Clinician : Personality And Training, Florence Mateer Jun 1914

The Psycho-Clinician : Personality And Training, Florence Mateer

Historical Dissertations & Theses

No abstract provided.

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The Model School As An Educational Factor, John Henry Purnell Jun 1914

The Model School As An Educational Factor, John Henry Purnell

Historical Dissertations & Theses

The term "model" school has two meanings. One is that which relates to an elementary school, sometimes a secondary school, connected more or less intimately with the professional work of a normal school, or training school for teachers. The other refers to a school which presumes to show the efficiency of certain educational theories and to increase the efficiency of the schools of the state, nation or empire by setting an example. This study has been mainly from the point of view of one interested in setting an example for other schools; but some of the schools connected with institutions …

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The Public School Teacher In Massachusetts, George Allen Coe Jun 1914

The Public School Teacher In Massachusetts, George Allen Coe

Historical Dissertations & Theses

This study has been undertaken for the purpose of securing an idea of some of the more important professional conditions and tendencies observable in the teaching body as found in the public schools of Massachusetts. The last sections present in addition to conclusions that have been reached directly or indirectly as a result of the findings herein presented a few suggestions as to what needs to be done for and by the teachers, at least in the humble opinion of the writer.

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Design Of Three Span Reinforced Concrete Arched R.R. Viaduct, Joseph James Shabart Jun 1914

Design Of Three Span Reinforced Concrete Arched R.R. Viaduct, Joseph James Shabart

Bachelors’ Theses

Reinforced concrete either, as arch or girder spans, is being used not only in preference to steel trusses or steel girders, where the stone arch is too expensive to be considered, but the concrete bridge is frequently replacing the old steel structure.

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A Study Of Induction Motors, Michael P. Valle Jun 1914

A Study Of Induction Motors, Michael P. Valle

Bachelors’ Theses

The induction rotor is tho most popular type of alternating current motor, and finds a wide field of application, Its action is based on the principle of the revolving magnetic field produced by alternating current displaced in phase relative to each other. At least two currents of different phase are necessary in order to produce a revolving field.

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Testing Of The Racine Street Highway Bridge: City Of Milwaukee, Gardner P. Allen, Ernest Gomez Arzapalo Jun 1914

Testing Of The Racine Street Highway Bridge: City Of Milwaukee, Gardner P. Allen, Ernest Gomez Arzapalo

Bachelors’ Theses

The object of this test was to determine experimentally, the live load stresses in the main members of the Racine Street Bridge, and thus to ascertain whether or not the theoretical live and dead load stresses were greater or less than the theoretical dead load plus the actual live load stresses. If less, the bridge could not be considered safe for the traffic which it now carries. The dead load stresses in the various members were determined analytically, and to these were added the respective live load stresses obtained by this test, thus obtaining the total stress in the various …

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A Study On Water Works For Irrigation, Joaquin Hermenegildo Hernandez Jun 1914

A Study On Water Works For Irrigation, Joaquin Hermenegildo Hernandez

Bachelors’ Theses

The large map set at the end of this thesis shows the boundary lines and general topography of the Hacienda de Guaname, a state owned by Don Mariano Hernandez Ceballos at the present day, situated in the high plateau of Mexico in the state of San Luis Potosi, about 75 Kilometers north of the capital of the state and to the west of the Mexican National R.R.. The extension of this property is over half a million acres but on account or the scarcity of rain fall during the Summer months, hardly any land is used for agriculture, the total …

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The Chemical Constituents Of Cast Iron And Their Effect On Its Physical Properties, Frank H. Paatsch Jun 1914

The Chemical Constituents Of Cast Iron And Their Effect On Its Physical Properties, Frank H. Paatsch

Bachelors’ Theses

Carbon is an element of great importance and very - extensively diffused in nature. It exists in large quantities in the mineral kingdom and is the most abundant constituent of animal and vegetable matter. It assumes a greater number of aspects than any of the elements we deal with in connection with iron. In the crystallized state it constitutes the diamond and more or less pure, it forms the substance called plumbago, graphite, black-lead, anthracite and bituminous coal, coke, animal and vegetable charcoal.

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