14 Matching Results

Search Results

open access

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 conside… more

Date: June 1938

Creator: Barnes, Benjamin F.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

The Determination of the Constants in the System of Methyl Alcohol, Acetic Acid, and Water

The purpose of this study is to determine the specific reaction or velocity constants and the equilibrium constant in a system of methyl alcohol and acetic acid, a bimolecular reaction of the second order.

Date: 1940

Creator: Bonner, Virginia Ruth

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Chemical Analysis of the Peanut

The object of this paper is to make an analysis of the mineral and food content of the peanut and to compare them with a balanced food.

Date: 1940

Creator: Brown, Carlos L.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

The Determination of the Constants in the System of Methyl Alcohol, Formic Acid, Methyl Formate and Water

Problems presented in this paper concern the chemical equilibrium of methyl alcohol, formic acid, and methyl formate when combined.

Date: August 1939

Creator: Cox, Ross L.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Correlation of Humus with Water Content and Crop Rotation in San Saba and Denton Clays, Denton County, Texas

A study of the humus content and the water content of San Saba clay and Denton clay. Studies show that the physical properties of soil are conducive to moisture retention and the availability of moisture to plants.

Date: August 1939

Creator: Culwell, John Walton

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Determination of the Effects of Various Concentrations of Sodium Chloride upon the Growth of Three Species of Bacteria

The problem in this investigation is to determine the effects of various concentrations of sodium chloride upon the growth of three species of bacteria. An effort has been made to solve this problem, not only by a study of the relevant literature, but also by laboratory research consisting of cultivation and observation of the three organisms which were arbitrarily chosen for this study.

Date: 1942

Creator: Davis, J. Floyd

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Chemical Analysis of the Blackeyed Pea

The purpose of this research problem is to determine the chemical composition of the blackeyed pea and to make a comparative study of the results. The value of the blackeyed pea as food, its chemical nature, and possible industrial uses are studied and recorded.

Date: 1941

Creator: Davis, Stanley F.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Seasonal Variations in the Microflora of Four Denton County, Texas, Sandy Soils

This investigation has been made to see whether there is a correlation between microorganisms present and the water content and temperature of four Denton County, Texas, sandy soils.

Date: 1941

Creator: Emerson, Robert L.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

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.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

The Chemical Analysis of the Mebane Cottonseed Kernel

The purpose of this work is to make a fairly complete chemical analysis of the Mebane 804-50 cottonseed kernel. A brief history of cotton plant and the economic value of its products are also presented.

Date: 1941

Creator: Hanna, Alvis Nelson

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

The Chemical Analysis of the Tennessee Green Pod Pole Bean

The object of this paper is to compare the Tennessee green pod pole bean with other beans as to chemical composition and food value.

Date: 1941

Creator: Mitchell, O. R.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Quantitative Chemical Analysis of Yellow Dwarf Milo Grain

Evidence indicates that the sorghums were grown as cultivated crops in Egypt as early as 2200 B. C. The sorghums are native to Africa, but indications are that they may have evolved independently in India.

Date: 1941

Creator: Taylor, George Thompson

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Chemical Analysis of Soft Wheat

The purpose of this piece of research is to determine the chemical composition of soft winter wheat, and to make a comparative study of it. A study is also made concerning its possibilities as a balanced food.

Date: 1940

Creator: Truitt, Jack

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Synthesis of Anthracyclines Related to Adriamycin

This dissertation reports the preparation of several types of anthraquinones structurally related to adriamycin. It describes the synthesis of two types of 2-aminoquinizarin compounds. It also presents two new syntheses of a heterocyclic tetracyclic ring system, similar to the aglicone ring system of adriamycin. A series of 2-aminoquinizarins was prepared by adding several primary amines to quinizarin. Quinizarin was shown to be essentially inert toward secondary amines. Several secondary amine… more

Date: May 1981

Creator: White, Roger J.

Item Type: Thesis or Dissertation

Partner: UNT Libraries