Digital Commons Network^™

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.

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. …

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.

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.

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.

The Design Of A Reinforced Concrete Arch Highway Bridge, Clinton Dewitt Smith

Bachelors Theses

"The Subject of this theses is the Design of a Reinforced Concrete Arch Highway Bridge. In making the Design the crossing of South River Street, Austin Minn., was taken as the hypothetical location of the bridge and the design made with reference to the requirements of this location. These requirements are no more than those for an ordinary rural highway bridge. While in the city of Austin it is not in the route of travel to and from the depots and is hence not subjected to the loads due to heavy freighting. There is however a heavy rural traffic, this …

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.

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 …

Engineering And Geological Work At Cananea, Mexico, Edward Dale Lynton

Professional Degree Theses

"The purpose of this thesis is to relate in as clear and concise a manner as possible the way "things are done" in practice as observed by myself during my two years' experience as sampler and assistant geologist to the Cananea Consolidated copper Co. of Cananea, Sonora, Mexico. My work took me to all the mines, and in this way I was able to accurately observe the sampling, system of mining, geology, etc. of this famous and important camp"--page 1.

The Thermal Conductivity Of Refractories, Boyd Dudley Jr.

Professional Degree Theses

"The usefulness of correct data in regard to the thermal conductivity of refractories and other materials used in the construction of metallurgical and industrial furnaces is quite generally recognized. Numerous investigations of this property of refractories have been conducted, and in many cases the published data of different investigators are somewhat conflicting. This is particularly true of figures pertaining to materials intended for use at high temperatures, and it is with such materials that the metallurgist is mot interested. The difficulties in the way of precise determinations of thermal conductivities at elevated temperatures are numerous, and it is not particularly …

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

Undergraduate Theses and Senior Projects

No abstract provided.

The Psycho-Clinician : Personality And Training, Florence Mateer

Historical Dissertations & Theses

No abstract provided.

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 …

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.

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.

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.

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 …

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 …

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.

Sociological Study Of The Colored Population Of Worcester, Thomas I. Brown

Historical Dissertations & Theses

This thesis reflects the time period in which it was written. Its title and the work itself may include outdated terminology, framing, or insensitive language.

Wherever in these United States the Negro is found in any appreciable number there arises incidentally the complex and perplexing problem known as the Negro or race problem.

While this problem is a national one various phases of it are peculiar to special localities, although no unfrequently placed are found where all, or nearly all, the aspects combine to make the local question extremely complex. Perhaps it is safe to say that no graver problem …

The Social Conditions Of The People Of India In The Time Of The Mahabharata, Orah F. Haight

Graduate Thesis Collection

It is the purpose of this thesis to describe in a systematic way the social life and conditions of some of the early Indian tribes who lived in North India.

Portland Cement, Asphalts And Bitumens, George R. Ensminger

Chemistry Honors Papers

This 37 page thesis classifies and analyzes cements, rock asphalt and bitumen.

Some Phenomena Which Accompany The Electrolysis Of Certain Salt Solutions, When The Electrodes Are Physically Separated By Means Of A Diaphragm Of Solid Gelatine, Containing The Same Salt As Is Used For The Electrolyte: A Study Of The Automatic Termination Of The Electrolysis, When Conducted Under The Above Conditions, Ernest Carl Wagner

Chemistry Honors Papers

This 22 page thesis is a record of work done during the summer of 1910, by Dr. W. H. Stoner, and during the summer of 1912 and the spring of 1914, by the writer, in the Chemical Laboratory of the Medico-Chirurgical College of Philadelphia.

Some Phases Of Our Modern Industrial Problem., James Asa White 1886-1953

Electronic Theses and Dissertations

The original intention of this dissertation was to have been a brief treatment of some phases of our modern industrial problem. Later, however, it was decided to offer suggestions for solutions to these various problems. This I have attempted to do in the form of appendices. The greater emphasis will be given to the side of the laboring man in relation to his environment, his fellow-worker, and organized capital, rather than to organized industries as such. It is very evident from the great unrest now apparent in the laboring world, that something is radically wrong with the present system of …

The Organic Phosphorus Compounds Of Wheat Bran., J. Howard Mueller

Electronic Theses and Dissertations

A growing interest has manifested itself within the past two or three years in "phytin" and "phytic acid", and in some of the compounds of the latter. Posternak first isolated this substance from the seeds of the red fir, pumpkin, pea, bean, white and yellow lupine and potato. Patten and Hart obtained the substance from wheat bran, and Hart and Tottingham found it in corn meal, oats and barley. The organic phosphorus materials obtained by alcoholic precipitations of aqueous or dilute acid extracts from these various sources are not identical, but ultimate analyses show a fair degree of similarity. Thus …

Bituminous Coal Mining In Northern Missouri, True Walter Blake

Professional Degree Theses

"Missouri was the first state west of the Mississippi to produce a commercial output of coal and, although in later years some of the western states have produced a larger yield, still the Missouri mines bid air to hold their present standing as there are hundreds of acres of virgin coal land in this state that will be able to be worked profitably after the eastern coal operators have worked out their thicker veins of coal. The coal is won from the grasp of Mother Earth by either room-and-pillar or longwall systems in the larger mines, each method being employed …

Report On Bellshazar Mining Property, Matthew Vincent Quinn

Professional Degree Theses

"The property of the Belshazzar Gold Mine is located in the Granite Creek Mining District of Boise County, State of Idaho. This district forms the northern boundary of the famous Boise Basin which has produced over two hundred million in placer gold. The Balshazzar property is about three and a half miles from the town of Quartzburg and about four miles from the town of Placerville. A good wagon road connects the property with both towns"--Description of the District, page 3.

Design Of A 250 Ton Mill, For Cyanidation Of A Cobalt Silver Ore, Carlos Enrique Elmore Y Guerra

Professional Degree Theses

"My aim in the designing of this 250-Ton Mill for cyanidation of a Cobalt Silver Ore, has been to select the simplest process of extraction in connection with the Labratory [sic] Experiments which showed the highest per cent of extraction. Care has been taken in the selection of the machinery, and the location of it in the Mill is such, that if a greater capacity is required, that could be done without interfering with the machines in the Mill in question"--Introduction, page 1.

A Comparison Of Missouri Sandstones, Llewelyn Lodwick

Bachelors Theses

"Because of the scarcity of fossils in sandstones, the ages of these stones are difficult to determine except by the fossil bearing rocks either above or below them. Consequently, sandstones, even of the same area, are often separated and correlated with difficulty. It is for this reason that an effort is made to determine a means by which each sandstone may be identified"--Introduction, page 1.

Investigation Of Rock Drill Bits, George Elmer Abernathy

Bachelors Theses

"The object of this thesis is an attempt to determine the relative efficiency of rock drill bits.

The bits compared were the ordinary double chisel bit, sharpened with a Leyner drill sharpener, and the same bit after it had been filed so that the point was not sharp, but a flat surface 3/32 of an inch wide at the outside, diameter of the bit and tapering to a point at the center of the bit"--page 1.