Physical Sciences and Mathematics Commons^™

Chromite Deposits Near Red Lodge And Silver Star, Montana, Edmond F. Smigel

Bachelors Theses and Reports, 1928 - 1970

The Red Lodge and Silver Star chromite deposits of Montana have stimulated much interest during periods of war. The Red Lodge deposit is 25 miles southwest of Red Lodge which is also the nearest railroad point. Several workings are scattered throughout the area, exposing lense-like ore bodies averaging 33% chrome oxide. Silver Star is a much smaller deposit 5 miles west of Silver Star, Montana, which is its nearest rail­road point. Lenses of chromite are exposed by pits and trench­es, which average approximately 36% chromic oxide.

The Beneficiation Of Montana Silver Star Chromite Ore, Edwin J. Bride

Bachelors Theses and Reports, 1928 - 1970

It is known that there are large deposits of chromium ore in Stillwater and Carbon Counties in South-Central Montana. The late James F. Kemp of Columbia University, stated in 1928, that these were the largest chromium deposits in the United States and probably in the world, although they were not considered of commercial grade as compared with foreign ores.

An Investigation Of The Ores Of The Big Seven Mine, Neihart, Montana, Francis L. Wilson

Bachelors Theses and Reports, 1928 - 1970

During the course of this investigation of the ores of the Big Seven mine, Neihart, Montana, the writer has attempted, through a mi­croscopic study of polished sections, to ascertain the hypogene or supergene character of the ore minerals present in the ore suite.

The Substance In Yeast Which Stimulates Gastric Secretion, C. F. Hoffman Jr.

Masters Theses

A number of substances are known which stimulate gastric secretion either when introduced into the lumen of the stomach or intestine, or when injected intravenously or intramuscularly. Among substances that have been tested experimentally by direct introduction into the stomach and have been found active as stimulating agents are beta-alanine, histamine, adrenaline, and peptone (1).

Substances which affect gastric secretion following their intramuscular or intravenous injection act through a humoral mechanism. Among compounds which have been tested for such effect are: Histidine. This has no effect on gastric secretion (2). Choline. Intravenously it weakly stimulates volume and acid (3). Lacithin. …

Geologic Field Mapping In An Area Eight Miles North Of Three Forks, Montana, H. E. Lillis

Bachelors Theses and Reports, 1928 - 1970

The Three Forks are includes parts of Jefferson, Madison, Broadwater Pond Gallatin counties, Montana. Sedimentary formations lie at the surface nearly everywhere in the area, and the rugged surface topography has been developed through the folding and tilting of these formations and their dif­ferential erosion.

An Experimental Investigation Of Certain Phases Of The Reaction Of Meta Dinitrobenzene And Carbonyl Compounds, William Elson

Master's Theses

No abstract provided.

A Study Of The Preparation Of Phenyl Sodium, William W. Jenkins

Master's Theses

No abstract provided.

Titration Curves Of Indicators, Marvin F. L. Johnson

Master's Theses

No abstract provided.

The Geology Of The Claiborne (Eocene) Group Of Mississippi As Far North As Grenada County., Emil Paul Thomas

LSU Historical Dissertations and Theses

No abstract provided.

Geology Of Desoto And Red River Parishes, Louisiana., Grover E. Murray

LSU Historical Dissertations and Theses

No abstract provided.

Dielectric And Solvent Effects Upon The Regeneration In Acid Solution Of Alkali-Faded Bromo Phenol Blue., Joseph Bailey Price

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of The Electrolytic Reduction Of Pyrrole, Don Richard Strehlau

Masters Theses

"A review of the chemical literature has shown that electro-organic methods compare favorably with purely chemical methods for certain syntheses belonging to the following general classes of reactions: coupling, oxidation, reactions with halogens, and reductions. Electro-organic methods have been used most successfully in synthesis by reduction. The chief advantage is using electrolytic reduction in preference to a chemical one is that it offers a more exact control of conditions, and consequently should give a higher yield and a purer product. The advantages of the means of reduction suggested an investigation of its use in the synthesis of hydrogenated products of …

The Magnesium Content Of The Rocks Of The Upper Cretaceous System Of Ellis And Osborne Counties, Kansas, Robert Funston

Master's Theses

The recent impetus given industry by the national defense emergency has made everyone more or less conscious of the great importance of minerals. During the past few years some of the industrial leaders of Kansas have been attempting to promote the natural resources of the state. Some minerals once considered of little or no value are now being developed. For many years the limestone rocks of Western Kansas have been used for building purposes. Until recently little work has been done on the chemical composition of these rocks. The author has decided to continue the study by analyzing the rocks …

Studies Arising From A Problem In The Calculus Of Variations, John Gonzalez

Mathematics & Statistics ETDs

In mathematics, generalization is progress; so much so that oftentimes one loses sight of the fact that generalization is the result of arduous work in the consideration of the particular. In no other branch of mathematics is this better exemplified than in the Calculus of Variations. The beginning of a systematic development of the theory of the Calculus of Variations really started with the two Bernoulli brothers (1654-1748) in their discussion of the brachistochrone problem in 1696. The method devised by them were sufficiently powerful in the attack of a large number of problems. Euler (1707-85) further elaborated the geometrical …

The Conversion Of Certain Amino Acids To Carbohydrate In Normal Animals, Bergere Alfred Kenney

Chemistry and Chemical Biology ETDs

The glycogenic effects of the individual amino acids, in the metabolism of normal animals, are by no means well defined. IN some cases, as in those of alanine and glutamic acid, the tendency of the acid to form glucose is generally accepted; in others, of which leucine and lysine are good examples, there is definitely no glucose formation; in still other cases, namely those of glycine and cystine, the contradictory nature of the results obtained by different investigators gives anything but a clear picture of the situation...

It is the purpose of this paper, therefore, to attempt such an estimation …

The Preparation Of Chlorobromo Dinitromethane And Its Reaction With Liquid Ammonia, Edward N. Case

Honors Theses

The nitro-alkyls have been recorded in the literature for many years. The preparation of the lowest completely nitrated hydrocarbon, tetranitromethane, from acetic acid, acetic anhydride, and fuming nitric acid, has been described by Berger. (1) On reaction with liquid ammonia it forms a salt of nitroform (2). Nitroform can be converted into tetranitromethane by dissolving in a heated mixture of fuming nitric and concentrated sulfuric acids (4). The potassium salt of dinitromethane has been prepared by Villiers (3). This method for the formation of chlorobromo dinitromethane was the one used in this work.

Investigation Of The Etching Patterns Of Silicic Acid Gels, Stephen H. Laning

Honors Theses

It was found that dissolving silicic acid gels on glass surfaces with strong sodium hydroxide, peculiar etching patterns were formed before the gel dissolved. The observation lead to the study of the etching patterns by photographs and other data for it was believed that these patterns would reveal the structure of the gel.

Thermal Reversibility Of Silicic Acid Gels, John H. Spittle

Honors Theses

The purpose of this research paper is to find out whether a silicic acid gel may be made which will be reversible with respect to temperature; that is, whether there is a gel which may be liquefied by heating or cooling.

Some Investigations On Quantitative Measurement Of Amalgamation, Charles Moore

Bachelors Theses and Reports, 1928 - 1970

Amalgamation is a process in which precious metals are collected by mercury. The exact way in which the mercury holds the other metals is not positively known. It is proba­ble that a series of intermetallic compounds form. Very little work has been done so far on the theory of amalgama­tion.

Basic Information In The Granitic Rocks Of The Boulder Batholith, Clifford G. Sherwin

Bachelors Theses and Reports, 1928 - 1970

Dark fine grained basic masses of rock are found in nearly every part of the Boulder Batholith, these commonly being referred to as inclusions, segregations, autoliths, and various other names. The origin, distribution, and composition of the dark inclusions form the basis for this report.

Some Chromite Deposits In Madison County, Montana, Russell H. W. Chadwick

Bachelors Theses and Reports, 1928 - 1970

Chromite occurs in Madison County, Montana, in two areas, one three miles southwest of Silver Star, the other five miles southeast of Sheridan. The ore bodies are small, lenticular masses surrounded by metamorphosed sedimentary rocks of the pre-Cambrian Cherry Creek series. The ore was deposited from the hydrothermal solutions which serpentinized the surrounding metamorphic host rocks.

The Electrowinning Of Manganese From Rhodochrosite, Lloyd L. Thompson

Bachelors Theses and Reports, 1928 - 1970

Manganese is commonly known to be a metal of great strategic importance. It is essential in the production of all steels, first as a scavenger to remove oxygen and sulfur, and second as an alloying element in wear-resis­tant steels.

Stratigraphy And Paleontology Of The Eagle Formation In Montana And Adjacent Areas, Raymond Thompson

Bachelors Theses and Reports, 1928 - 1970

A conspicuous two hundred and fifty foot sandstone of central Montana, known as the Eagle Formation, constitutes part of the some five thousand feet of Cretaceous sediments in the state. It stands out in steep cliffs which stretch for many miles in the outcrop area from Wyoming to Canada.

The Investigation Of Different Variables In The Assaying Of Silver Cyanide Solutions, Phillip L. Banfield

Bachelors Theses and Reports, 1928 - 1970

The cyanide method of extraction of gold and silver from their ores is extensively used in the United States and elsewhere. It is becoming increasingly more important in its use as the mining of lower grade deposits continues.

Some Preliminary Investiagtions Of The Magnetic Permeabilities Of Alloys Of The Ferromagnetic Metals, John H. Gambill Jr.

Bachelors Theses and Reports, 1928 - 1970

The problem presented for this thesis was an investigation of the magnetic properties of the alloys produced by the methods of powder metallurgy. The question behind this was the correlation of the magnetic properties with the bonding properties and with the diffusion of the constituents.

Some Effects Of The Addition Of Tellurium To Lead Alloys, Selim Ozsahin

Bachelors Theses and Reports, 1928 - 1970

From the standpoint of its practical useful­ness, the most important characteristics of metallic lead are its cheapness, resistance to corrosion, plas­ticity, high specific gravity, low melting point, and its ability to form alloys in which some properties are modified by the addition of other elements, while other properties remain the same.

The Theory Of Alloy Deposition And The Effect Of A Rotating Cathode Upon Such Deposition, With Special Attention To The Possibility Of Depositing Sterling Silver, Kenneth J. Stodden

Bachelors Theses and Reports, 1928 - 1970

In the past few years a great deal of atten­tion has been given to the electrodeposition of alloys. For the main part, this investigation has been of scien­tific interest only; but in a few instances, such work has attained commercial importance.

The Extraction Of Chromate Salts From Montana Chromite, Server Tasdemiroglu

Bachelors Theses and Reports, 1928 - 1970

In this thesis I have tried to determine the suit­able temperature, time and the amount of soda ash and lime needed for the calcining process. The leaching and purification tests were studied experimentally. The earlier process for making chromate from chromite was not the same as is used today. There­fore I have found it useful to put into this thesis the newest method for making chromate salts and their important uses.

Measurements Of The Magnetic Permeabilities Of The Iron-Manganese Alloy System Prepared By The Methods Of Powder Metallurgy, O. Cihad Onbulak

Bachelors Theses and Reports, 1928 - 1970

Powder metallurgy is a branch of metallurgy which produces metallic compacts in their final forms by means of pressure and heat-treatment from the pow­ders. The products of powder metallurgy are being used in our daily lives quite often. For example, the tungsten wires in the electric bulbs to the silver-tin fillings of our teeth.

An Experimental Investigation Of The Age Hardening Of Copper With Manganese Silicide, Ali Kozak

Bachelors Theses and Reports, 1928 - 1970

The subject of the thesis was based upon the theory of precipitation or age hardening of the copper by the compound formed by the Manganese and silicon present in the ternary Cu-Mn-Si alloy. The effect of the heat treat­ment to such an alloy was to be studied and the best aging time and temperature was to be determined.