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A Chemical Analysis of the Soils of Denton County, Texas
The purpose of this study was to analyze the different soils in Denton, Texas. For the purpose of this study, the soils of Denton County are divided into three general groups with respect to origin: 1)those formed in place by the weathering of consolidated rocks, 2) those formed from the weathering of unconsolidated rocks, and 3) alluvial soils. A chemical analysis of representative samples of Bell Clay, Kirvin fine sandy loam, and San Saba clay has been made, and shown to have a strict correlation with their respective geological origins.
Date:
August 1936
Creator:
Wilson, Curtis
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Complete Chemical Analysis of Samples Taken from the Three Artesian Waters of Denton County
The purpose of this study was to determine the chemical content of Denton County's (Texas) water. Based on the analysis of the three samples, the water of Denton County is classed as poor for irrigation.
Date:
August 1936
Creator:
Allen, John William
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Quantitative Chemical Examination of Surface Well Water from the Three Principal Geological Divisions of Denton County
A sample of the surface-well water was taken from an area of the predominating soil of each of the three geological regions of Denton County, Texas, and a chemical analysis of each sample was made. This thesis deals with the area from which the samples were taken, the methods of analysis used, and the results of the analysis.
Date:
August 1936
Creator:
Schnably, John Robert
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Application of Concentration, Adsorption and pH in the Precipitation of the Metal Ions of Groups II and III
In this thesis, the process involved in the precipitations and separations of the metal of Group II and Group III studied. Suggestions have also been offered whereby students can make an analysis without loosing metals in the initial precepitation.
Date:
June 1937
Creator:
Cockerell, Leone Doris
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Experimental Study of the Electrodeposition of Lead
This thesis aimed to study some of the general principles underlying electrodeposition together with experimental facts regarding the effects of changing constituents of the plating solutions, variations in hydrogen-ion concentrations, and variation in current density used in the electrodeposition of lead.
Date:
June 1937
Creator:
Roberts, Ira Clifford
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Analysis of Elementary Science Material Included in Certain Courses of Study and Text Books
The purpose of this study is to assess the contribution of elementary science to the curriculum. The finding of the investigation summarized in table form.
Date:
August 1937
Creator:
Maurice, Katherine
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparative Investigation of the Water of Lake Bridgeport with Reference to Plant and Animal Life
The investigation of the waters of Lake Bridgeport is to obtain data essential for a satisfactory understanding of the physical and chemical factors on the aquatic life. These factors detremine the kinds of food available for life there.
Date:
August 1937
Creator:
Woods, Alethea Marie
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Electrodeposit of Nickel
The purpose of this study is to investigate the varying conditions in types of solutions, concentrations of solutions, hydrogen-ion concentration, current densities and potentials in the electro deposition of nickel.
Date:
August 1937
Creator:
Rohrer, Charles Stephen
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
To Determine Objectives from the Constitution Preamble, Children's Charter and Social-economic Goals of America, and to Recommend a General Science Curriculum Development to Conform Therto
In this elementary science curriculum development effort, concepts are used as tools in the realization of objectives, but they are not objectives in themselves.
Date:
August 1937
Creator:
Wilson, Gilbert C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Quantitative Chemical Analysis of the Soils of Erath County, Texas
A chemical analysis of representative samples of Windthorst sand, Denton sand, and Denton clay has been made, and this analysis shows that their composition has a strict correlation with respect to their geological origins. The analyses of the different soils have shown the Windthorst sand to be highly deficient in all of the essential elements, whereas the Denton sand is deficient in only one; namely, phosphorus. The analysis of the Denton clay showed it to be highly fertile. From the consideration of the pH and the lime content, it has been determined to some extent what crops will grow in each of the soils.
Date:
June 1938
Creator:
Barnes, Benjamin F.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Study of the Quantitative Determination of Nitrogen
The purpose of this paper is to investigate the Kjeldahl method of nitrogen determination.
Date:
June 1938
Creator:
Willard, John Gordon
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Analysis of the Naphtha Cut of Cooke county, Texas, Crude Oil
This study attempted to determine hydrocarbons in the crude oil by comparing the results obtained using the two methods of analysis: chemical analysis and Kurtz-Headington analysis. The Kurtz-Headington analysis was found to be adequate to determine hydrocarbons in the crude oil.
Date:
August 1938
Creator:
Jones, Homer
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Chemical Analysis of the Important Soils of Dimmit County, Texas
The purpose of this study is to collect sample soils from uncontaminated horizon (by digging completely through the soil profile or strata) and provide a chemical analysis of the important soils of Dimmit county, Texas.
Date:
August 1938
Creator:
Meek, William
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparative Study of Errors in Chemistry and English Found in Examination Papers of Freshman Chemistry
This study attempts to discover what types of errors are commonly made by students in freshman chemistry classes. It considers the errors resulting from the students' lack of knowledge of the subject taught, and errors attributed to their failure to use correct English in their expression of ideas.
Date:
August 1938
Creator:
Phillips, Annie
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Determination of Nitrogen, Phosphorus, and Potassium in Various Plants
This study attempted to form some conception, through the analysis of a representative group of plants in the vicinity of Denton, of the amount of the three essential elements in the leaves as compared with the amount in the woody portions. The comparison of leaf with stem as to the quantity of nitrogen, phosphorus, and potassium is explained.
Date:
August 1938
Creator:
Holloway, J. B. Menlo
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Molecular Dimensions
This study attempts to calculate the areas of the cross section and diameter of the CH3 group, COOH group, the length of the carbon chain, and the longtiudinal distance between carbon atoms for each of the three acids. It also attempts to develop a method of measuring the effective diameter of molecules of gases. Equations for these terms as given by MacDougall and experiments were performed and the data applied to the equation.
Date:
August 1938
Creator:
Moss, H. H.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Physical and Chemical Investigation of Eagle Mountain Lake with Reference to Biological Productivity
The purpose of this investigation is to attempt by correlation of chemical-physical factors to ascertain if any one of the necessary features might act as a factor limiting growth and reproduction of either plants or animals. The body of water used in this investigation is Eagle Mountain Lake, a reservoirs approximately five years of age.
Date:
August 1938
Creator:
Smith, Burns Ashby
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Quantitative Study of the Common Metals Found in the Oak and the Pine
The purpose of this study is to determine the amounts of the element sulfur, phosphorus, sodium, potassium, silicon, iron, aluminium, calcium, magnessium, and manganess found in the roots, hearts, sap, leaves, and bark of two plants, the short leaf pine and the blackjack oak.
Date:
August 1938
Creator:
Moore, Carver Yates
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Rate of Natural Fermentation of Various Solutions with Regard to Temperature
The purpose of this study is to investigate the rate of natural fermentation of solutions at different temperatures. Whatever microorganisms that chanced to be present in the air and that chanced to fall into the inoculating medium are the ones which brought about fermentation when transferred to the fermentable solution.
Date:
August 1938
Creator:
Lambert, Frank E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Chlorosulfonic Acid Reactions with Saturated Hydrocarbons
This thesis examines the reactions of hydrocarbons exposed to chlorosulfonic acid in order to establish the reaction rate and associated molecular structure of each compound.
Date:
May 1939
Creator:
Stubblefield, H. L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Attempt to Produce a High Octane Gasoline from C4 Hydrocarbons
This thesis presents the results of an experiment conducted to discover if selenic acid or monazite sand are possible catalysts that can be used for the alkylation of isobutane and isobutene.
Date:
June 1939
Creator:
Scott, Howard Winfred
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparative Quantitative Study of the Common Elements Found in the Hackenberry
This comparative study attempts to determine the importance of soil fertility in determining how much of an element a plant absorbs.
Date:
June 1939
Creator:
Bailey, Duward W.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Mercury-Sensitized Photochemical Action on a Mixture of Isobutane and Isobutene
This study investigated mercury-sensitized photochemical action on a mixture of isobutane and isobutene. Flow runs of isobutane-isobutene 3.2.1 mercury-saturated gases illuminated with unfiltered radiation of mercury vapor lamp gave no detectable change to hydrocarbons heavier than C4 at reaction tempratures of 27C. and 99C.
Date:
June 1939
Creator:
Gary, Felice
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Chemical Analysis of Yellow Dent Corn
This study examines history, climate, and distribution in relation to the chemical content of yellow dent corn.
Date:
August 1939
Creator:
Hamby, R. B.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library