Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Masters Theses

Discipline
Institution
Keyword
Publication Year
Publication Type

Articles 7831 - 7860 of 7903

Full-Text Articles in Entire DC Network

The Social And Political Philosophy Of Shelley As Revealed In His Poetry, Eulalie Imogene Powell Jan 1930

The Social And Political Philosophy Of Shelley As Revealed In His Poetry, Eulalie Imogene Powell

Masters Theses

"The interest in a study of the philosophy of Shelley does not lie in the hope of discovering anything new, since there is little in anyone's belief that is without historic parallel. Rather, the sources of such an interest are first, the medium of poetry through which Shelley expressed his belief, and secondly, the transference of these beliefs into the acts of his life. It is to a consideration of the first of these that this paper is limited. Biographical facts will be used only for the elucidation of the theories expressed in his poems. Briefly, the purpose of this …


The Solubilities Of Alkali Chlorides And Sulfates In Anhydrous Alcohols, Emmet Rudolph Kirn Jan 1930

The Solubilities Of Alkali Chlorides And Sulfates In Anhydrous Alcohols, Emmet Rudolph Kirn

Masters Theses

"A search of the literature for data on the solubilities of inorganic salts in various anhydrous alcohols will show that comparatively little work has been recorded. Most of the work has been done on salts in aqueous normal alcohols and practically all of this data concerns only methyl and ethyl alcohols. This information shows a wide divergence in results with different workers. Perhaps these differences in data may be attributed to an error in that the alcohols may not have been absolutely anhydrous, for even small traces of water greatly affect the solubility of the salts. Again, the methods of …


Beneficiation Of Manganese Ores, Michael V. Healey Jan 1929

Beneficiation Of Manganese Ores, Michael V. Healey

Masters Theses

"The purpose of this investigation is to study the means of beneficiating domestic manganese ores in order that a marketable product may be made. Within the limits of the paper the term "Manganese ores" is applied to those ores mined primarily for their manganese content, to the exclusion of manganiferous iron and silver ores"--Object, page 1.


A Study Of Ball Mills, Robert Lee Kidd Jan 1929

A Study Of Ball Mills, Robert Lee Kidd

Masters Theses

"The study of the ball mill is very complicated, due to the varying conditions existing in the mill. Some of these conditions are: Size of grinding media, size of feed, moisture content, and speed with its effect on the paths of the grinding media. A brief history of fine grinding will first be outlines, after which some of the theories of ball milling will be stated. Then the paths of the grinding media will be given some attention, and a new point of view about the trajectory will be brought out"--Introduction, page 2.


Reaction Of Metallic Iron And Copper Sulphate In The Flotation Of Sphalerite, Charles Wilson Ambler Jan 1929

Reaction Of Metallic Iron And Copper Sulphate In The Flotation Of Sphalerite, Charles Wilson Ambler

Masters Theses

"Copper sulphate is a common flotation reagent for blende ores. Metallic iron is also present in the mill circuit and a reaction between the iron and the salt would be in accord with well known chemistry. The abundance of metallic iron in a flotation feed may be noted by the examination of any feed. It originates, first of all, in the mine, then the coarse crushing machines contribute their share, and finally the fine grinding medium is a large contributor. If the grinding is with cast iron balls in amount of metallics is greater than when steel is used. In …


A Study Of The Determination Of Fluorine And Other Constituents In Fluorspar, Robert Knowlton Grantham Jan 1929

A Study Of The Determination Of Fluorine And Other Constituents In Fluorspar, Robert Knowlton Grantham

Masters Theses

"A method for the determination of certain constituents in fluorspar has been studied. Fluorspar can be complete decomposed by fuming with perchloric acid. Agitation and boiling is essential to a rapid and quantitative decomposition. Lead, ferric oxide, titanium oxide, aluminum oxide and total calcium have been quantitatively determined in the solution obtained by the perchloric acid method of decomposition. Silica cannot be determined quantitatively by the use of perchloric acid alone. Preferential solution of calcium carbonate by means of very dilute perchloric acid cannot be used as a method for determining calcium in carbonates in the presence of calcium fluoride"--Summary, …


The Change In The Order Of Catalytic Action Of Lithium Chloride, Sodium Chloride, Magnesium Chloride, And Calcium Chloride In The Ketonic Splitting Of Ethyl Acetoacetate, Richard Dwight Duff Jan 1929

The Change In The Order Of Catalytic Action Of Lithium Chloride, Sodium Chloride, Magnesium Chloride, And Calcium Chloride In The Ketonic Splitting Of Ethyl Acetoacetate, Richard Dwight Duff

Masters Theses

"The catalytic action of neutral salts on many reactions has been investigated under various conditions, and a large number of explanations have been put forward. In this work the catalytic action of normal solutions of lithium chloride, sodium chloride, magnesium chloride, and calcium chloride in the presence of .1 N. hydrochloric acid on the ketonic splitting of ethyl acetoacetate has been investigated at several temperatures between 80⁰C. and 95⁰C. An attempt has been made to explain the results obtained"--Introduction, page 1.


The Concept Of Social Determinism As A Motivating Influence In Some Modern Tragedy, Arthur Lenox Bradford Jan 1929

The Concept Of Social Determinism As A Motivating Influence In Some Modern Tragedy, Arthur Lenox Bradford

Masters Theses

"The term, "social determinism", is a rather unfortunate designation for the absolute conditioning of human character by the aggregate of biologic and social influences...The central idea of this positivistic interpretation is that man, along with all other organic things, is the product of hereditary accidence and environmental contacts, that his psychic and physical constitutions (if there be such differentiation) are fashioned to the minutest detail by circumstance, and that his thoughts and the chemic impulses of his nature appear precisely according to his character which he has no hand in making"--Introduction, page 2-3.


A Study Of The Basal Cherokee In The Rolla Area, Thomas Daniel Murphy Jan 1929

A Study Of The Basal Cherokee In The Rolla Area, Thomas Daniel Murphy

Masters Theses

"The occurrence of outliers of Pennsylvanian age, probably Cherokee, in and about Rolla has long been known. The Bureau of Geology and Mines and the Department of Geology of the School of Mines at Rolla have been greatly interested in the many stratigraphic problems presents. The writer has, therefore, undertaken field and laboratory studies of certain of these problems"--Introduction, page [1].


A Study Of Crime And Criminal Statistics Of Phelps County, State Of Missouri, For The Period 1899-1929, Walter Llyn Bradford Jan 1929

A Study Of Crime And Criminal Statistics Of Phelps County, State Of Missouri, For The Period 1899-1929, Walter Llyn Bradford

Masters Theses

"It is only within very recent years that the study of Human Society has been undertaken in a really scientific manner. It is true that the social problems have been studied and ideas suggested and discussed for their solution since the very beginning of social organization, for nowhere has there been found a state of society so perfect that all members are completely satisfied with their well-being under it...The study of crime is a part of the science of sociology and must be made according to the same methods as apply to all other kinds of social phenomena"--Introduction, page 1-3.


Elutriation Of Flotation Products, Guenther Walter Frotscher Jan 1929

Elutriation Of Flotation Products, Guenther Walter Frotscher

Masters Theses

"Since the first application of the flotation process in ore dressing practice, engineers have been busy solving the most delicate relations of metal distribution in the minerals to be treated...The desire for more information was the reason for research concerning the mineral distribution in fine flotation material with particular attention to the development of a suitable laboratory method of hydraulic classification or, as it is especially called, elutriation"--Introduction, page 1-4.


The Solubility Of Inorganic Salts In Ether, Clarence Bernard Weiss Jan 1928

The Solubility Of Inorganic Salts In Ether, Clarence Bernard Weiss

Masters Theses

"The data on the solubility of inorganic salts in ether is scarce. Eder made a study of this subject and found few salts whose solubility could be called high. He used both hydrated and dehydrated salts. Neumann mentions the great solubility of aluminum chloride in ether, but did no work to find its exact proportions. It was thought that perhaps with this particular salt, a solubility curve might be obtained that would be both instructive and interesting. Therefore the major portion of this work was spent in determining the solubility of aluminum chloride in ether. Other salts whose solubilities were …


Heavy Minerals In The Roubidoux And Other Sandstones Of The Ozark Region (Mo.), Cletus Daniel Cordry Jan 1928

Heavy Minerals In The Roubidoux And Other Sandstones Of The Ozark Region (Mo.), Cletus Daniel Cordry

Masters Theses

"In this study an attempt has been made to determine the usefulness of heavy minerals for correlation of formations over a limited area, in the heart of the Ozark uplift in southeast Missouri. The Roubidoux formation, already definitely correlated by other means, has been rather systematically sampled throughout the area, and the heavy minerals determined to ascertain their dependability for correlation purposes. Several samples from other horizons have been studied for comparison with the Roubidoux. Also, within the area studied there are numerous isolated patches of sandstone, the horizons of which have not been definitely determined. Samples from a few …


The Preparation Of Certain Inorganic And Organic Compounds Which May Be Of Use In Mineralogical Separations, Clarence Jay Black Jan 1928

The Preparation Of Certain Inorganic And Organic Compounds Which May Be Of Use In Mineralogical Separations, Clarence Jay Black

Masters Theses

"In the work with minerals, there has been many mechanical means devised whereby the ores could be separated from the gangue and other material. Among those means which are used to-day, especially in the laboratory tests upon minerals, to quickly determine the value of an ore, heavy liquids have become quite popular. This means of mechanical separation is merely to place finely ground ore containing particles of varying density into a liquid of heavier density than the greater portion of the mineral, which will allow the heavier portions to sink and the lighter to float, which is usually gangue. This …


A Means Of Making A Segregate Preparatory To Chemical Analysis Of The Sulphide Minerals In A Low-Grade Dolomitic Ore-Pulp Containing Lead, Zinc, And Copper, Julius Bruce Clemmer Jan 1928

A Means Of Making A Segregate Preparatory To Chemical Analysis Of The Sulphide Minerals In A Low-Grade Dolomitic Ore-Pulp Containing Lead, Zinc, And Copper, Julius Bruce Clemmer

Masters Theses

"The object of this investigation was to find a means of obtaining from a low-grade dolomitic ore pulp a segregate of the sulphide minerals of lead, zinc, and copper preliminary to chemical analysis so that the chemist's error of 0.03 per cent would be divided by the ratio of the segregate to the entire pulp, and hence be reduced. Two methods of obtaining the segregate were investigated: (1) By float-and-sink tests, and (2) by selective dissolution of the dolomite, which is the main gangue constituent of the ore"--Object of Investigation, page 3.


The Solubility Of Inorganic Salts In Carbon Disulfide: The Case Of Aluminum Bromide, Herman Henry Kaveler Jan 1928

The Solubility Of Inorganic Salts In Carbon Disulfide: The Case Of Aluminum Bromide, Herman Henry Kaveler

Masters Theses

"Since about 1890, the interest in solubility has turned to a large extent to the investigation of the solubility of compounds in organic solvents. This has resulted in a great deal of work being done on the solubility of inorganic salts in non-aqueous solvents. As this mass of data steadily accumulated, the theoretical considerations of solubility and the ideal solution made rapid advances, as Hildebrand has pointed out. We express as much wonder over these theoretical advances as chemists did over the discover "that salts do dissolve in organic compounds". To add some useful data to that already accumulated on …


Concentration Of Fluorspar Ores In The Illinois-Kentucky District, Omar Watson Greeman Jan 1928

Concentration Of Fluorspar Ores In The Illinois-Kentucky District, Omar Watson Greeman

Masters Theses

"The object of this investigation is to study the means of beneficiating fluorspar ores in order that a marketable product may be made"--Preface, page v.


A Study Of Petroleum Emulsions, Howard Halcomb Gross Jan 1928

A Study Of Petroleum Emulsions, Howard Halcomb Gross

Masters Theses

"The producer of crude oil experiences a continuous source of trouble and loss in the emulsion problem. These emulsions cannot be entirely discarded for several reasons: First because it is a waste of natural resource and second because there are such large quantities that no feasible outlet could be found on account of fire hazard and stream polution [sic]. Further to keep these emulsions in storage for slow settling puts a storage burden on the producers. To handle the emulsions most economically many producers are treating them and a large number of methods for treating have been devised. The object …


Solubility Of Solid Paraffins In Lower Molecular Weight Hydrocarbons, Ruth Veino Goodhue Jan 1928

Solubility Of Solid Paraffins In Lower Molecular Weight Hydrocarbons, Ruth Veino Goodhue

Masters Theses

"The solubility of solid paraffins in the lower molecular weight liquid hydrocarbons offers a problem of some considerable commercial importance since it is by use of these low boiling hydrocarbons that the undesirable paraffin waxes are removed from lubricating oils in the Sharples process. Little data is to be found in the literature on the solubility of the paraffin waxes, and that which is available is of a very general nature...This work was undertaken for the purpose of finding if possible, what effect this "cracking" or "telescoping" process has on the solubility of the paraffins in the liquid hydrocarbons"--Introduction, page …


A Study Of The Determination Of Silica In The Presence Of Fluorine, William Harlan Ode Jan 1928

A Study Of The Determination Of Silica In The Presence Of Fluorine, William Harlan Ode

Masters Theses

"The determination of silica in the presence of fluorine has always been accomplished either by difficult and complex analytical procedures or by rapid arbitrary control methods of doubtful precision...Hence, this study was undertaken in order to determine whether a more simple method might be found for the determination of silica in the presence of fluorine"--Introduction, page 1-2.


Effect Of The Use Of Old Retorts As Grog And Of Zinc Oxide Upon The Properties Of Bodies For The Manufacture Of Retorts, Elmer Gammeter Jan 1927

Effect Of The Use Of Old Retorts As Grog And Of Zinc Oxide Upon The Properties Of Bodies For The Manufacture Of Retorts, Elmer Gammeter

Masters Theses

"In the fall of 1924 the Mississippi Valley Experiment Station of the United States Bureau of Mines, Department of Commerce, in cooperation with the Missouri School of Mines and Metallurgy began an investigation of the properties of raw materials used in the manufacture of retorts for the zinc industry. The investigation proceeded cooperatively until December, 1926, when the Bureau of Mines withdrew from ceramic research. The School then took over and is completing the problem as outlined. The first phase of the investigation had for its object the determination of the properties of the fireclays and body mixtures now in …


The Origin And Development Of The Arthurian Story In English Literature To The Nineteenth Century, Nadine Matlock Sease Jan 1927

The Origin And Development Of The Arthurian Story In English Literature To The Nineteenth Century, Nadine Matlock Sease

Masters Theses

"It is the purpose of this paper to trace the story of the Arthurian romance from its origin to the nineteenth century with especial reference to the literature of the English language"--pages 1-2.


The Catalytic Action Of Neutral Salts : The Effect Of Normal Alkali Sulphates On Alkali Acid Sulphates In The Ketonic Splitting Of Ethyl Acetoacetate, Elbridge Alvah Goodhue Jan 1927

The Catalytic Action Of Neutral Salts : The Effect Of Normal Alkali Sulphates On Alkali Acid Sulphates In The Ketonic Splitting Of Ethyl Acetoacetate, Elbridge Alvah Goodhue

Masters Theses

"The catalytic effect of neutral salts has been investigated for numerous reactions and various theories propounded to account for their action. In this work the action of normal potassium and sodium sulphates on solutions of the corresponding acid salt has been investigated for two concentrations of the latter at three different temperatures. An attempt has been made to account for the observed actions"--Introduction, page 1.


A Study Of The Iodine Content Of Representative Missouri Waters, Edmond Carl Hunze Jan 1927

A Study Of The Iodine Content Of Representative Missouri Waters, Edmond Carl Hunze

Masters Theses

"Investigations have shown that the iodine content of natural waters bears a direct relationship to the goiter incidence of a given region. A number of the states have analysed [sic] their water for this constituent in the development of this hypothesis. A search of the literature revealed the fact that with the exception of two instances the iodine content of Missouri water had not been determined. Since in certain regions of Missouri there is quite a prevalence of goiter, it was deemed important to determine the iodine content of Missouri waters. It was believed that such information would be a …


The System: Calcium Oxalate - Sulphuric Acid, Joseph Maple Wilson Jan 1927

The System: Calcium Oxalate - Sulphuric Acid, Joseph Maple Wilson

Masters Theses

"The manufacture of oxalic acid includes as one of the steps in the process, the conversion of calcium oxalate to the desired oxalic acid by treatment with sulphuric acid, and the subsequent crystalization [sic] of the oxalic acid from the solution of it thus made. This investigation has dealt with this conversion step, with regard to the various factors affecting it. The effect of time, acid concentration, temperature, volume of solution, solubility of reaction products, and possible compound formation have all been considered, and from the information thus gained the conclusion has been drawn"--Introduction, page 1.


The Solubility Of Solid Paraffin In The Lower Molecular Weight Hydrocarbons, Paul Weber Jan 1927

The Solubility Of Solid Paraffin In The Lower Molecular Weight Hydrocarbons, Paul Weber

Masters Theses

"In the process of oil refining, a certain fraction of distillate from the crude oil composes the so-called wax distillate fraction from which is obtained the various lubricating oils. But the presence of the waxes and solid paraffins in these oils is very undesirable as they possess no lubricating qualities. Consequently, they must be removed from this wax distillate before the oil can be marketed"--Introduction, page 1.


A Study Of The Reduction Of Zinc Oxide By Hydrogen And Methane, Frederick Adam Weirich Jan 1926

A Study Of The Reduction Of Zinc Oxide By Hydrogen And Methane, Frederick Adam Weirich

Masters Theses

"The purpose of the investigation was to make a study of the reduction of zinc oxide by hydrogen and methane and to study the conditions for the most efficient condensation of the zinc vapor"--Investigations, page 4.


A Study Of Electrometric Methods For Determining Selenium And Tellurium, Bertie Lee Browning Jan 1926

A Study Of Electrometric Methods For Determining Selenium And Tellurium, Bertie Lee Browning

Masters Theses

"The quantitative oxidation of tellurious acid to telluric acid by potassium dichromate has been shown by Lenher and Wakefield to be applicable to the volumetric determination of tellurium. The purpose of this investigation was to study the applicability of the electrometric method to this titration"--Introduction, page [1].


Comparative Value Of Various Grog Materials For The Manufacture Of Zinc Retorts, Wei-Tung T. Hu Jan 1926

Comparative Value Of Various Grog Materials For The Manufacture Of Zinc Retorts, Wei-Tung T. Hu

Masters Theses

"As before stated, this present investigation, of which this thesis covers only a part, undertakes to study the comparative values of various grog materials for the manufacture of zinc retorts, having as its object to find better grog materials for the purpose than those commonly in use at the present time, and to determine the best proportions of bond clay to use with each kind of grog"--Scope of Investigation, page 4.


The Properties Of Refractories In Zinc Metallurgy. Part Iii. Comparison Of Various Clays, Richard Elkanah Sears Jan 1926

The Properties Of Refractories In Zinc Metallurgy. Part Iii. Comparison Of Various Clays, Richard Elkanah Sears

Masters Theses

"This thesis...contains a description of a part of a general investigation on the subject of the refractories used in the distillation of zinc. This investigation has been in progress for the past eighteen months at the Mississippi Valley Experiment Station of the United States Bureau of Mines, Department of Commerce, in cooperation with the School of Mines and Metallurgy of the University of Missouri. The first phase of this investigation had for its theme the determination of the properties of the fire clays and body mixtures now used in the manufacture of zinc retorts. The second phase deals with the …