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  Partner: UNT Libraries
 Department: Department of Biology
 Collection: UNT Theses and Dissertations
A correlation of the Edaphic Factors with the Vegetation of the Woodbine sands, Denton County, Texas

A correlation of the Edaphic Factors with the Vegetation of the Woodbine sands, Denton County, Texas

Date: August 1936
Creator: Graham, H. L.
Description: The purpose of this study was to correlate the Vegetation of the Woodbine Sands with the edaphic factors. In the laboratory an analysis of the edephic factors was made of the twenty-two soil types collected from the three formations. The results of these and other analysis are shown in tables and graphs. The results indicate that the vegetational cover of an area that is uniform in its origin and in its resident soil factors is determined by the edaphic factors present.
Contributing Partner: UNT Libraries
Moisture Relations of the Soils of Denton County

Moisture Relations of the Soils of Denton County

Date: August 1936
Creator: Laufer, Hymie.
Description: In this research, study was made of representative soils of denton County (Texas) with the aim of correlating various soil-moisture factors through experimental analyses. Two accepted hypotheses of soil-moisture relations have been substantiated by experiment with Denton County soils.
Contributing Partner: UNT Libraries
A Study of Plankton Dilution in Source Streams Compared with that of Lake Dallas Proper

A Study of Plankton Dilution in Source Streams Compared with that of Lake Dallas Proper

Date: August 1936
Creator: Evans, Archibald A.
Description: This study was a comparative study of Plankton of Lake Dallas and the three main source streams. Based on the analysis of data, which was presented relative to the organisms taken from the lake and from the source streams, the results obtained are discussed, the Plankton seem to be largely autogenetic in Lake Dallas, the source streams Elm Fork and Clear Creek form a dilution process.
Contributing Partner: UNT Libraries
Possible uses of North Texas Plants and Animals in Elementary Science

Possible uses of North Texas Plants and Animals in Elementary Science

Date: May 1937
Creator: Millican, Addie
Description: This thesis aimed to study plants and animals of North Texas which are adaptable for use in elementary science. In this study, 15 groups of plants and animals were selected as representative ones and among other benefits, each group of organisms was examined for its contributions to a limited understanding of bilogical principles.
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Bacterial Survey of Representative Denton County Wells with Special Reference to Sanitation

Bacterial Survey of Representative Denton County Wells with Special Reference to Sanitation

Date: June 1937
Creator: Roberts, Sally Stevens
Description: This thesis aimed to study the seventy-two representative wells of Denton County and to determine the possibilities of infection with typhoid organism. The sanitary survey and the test for Colon-Aerogenes bacteria show that 55% of the 72 wells studied are unsanitary, 27% are sanitary, and 18% are doubtful.
Contributing Partner: UNT Libraries
A Yearly Study of the Bacterial Flora of Lake Dallas Water with Special Reference to Sanitation

A Yearly Study of the Bacterial Flora of Lake Dallas Water with Special Reference to Sanitation

Date: June 1937
Creator: Foster, Edwin Michael
Description: The purpose of this thesis is to determine the relative numbers of colon bacteria in the water of Lake Dallas.
Contributing Partner: UNT Libraries
A Correlation of the Habitat Factors with the Quantity of Bacterial Colonies as Observed by the Direct Microscopic Method on Twenty Soils of Denton County, Texas

A Correlation of the Habitat Factors with the Quantity of Bacterial Colonies as Observed by the Direct Microscopic Method on Twenty Soils of Denton County, Texas

Date: August 1937
Creator: Roach, Cornelia Ann
Description: The aim of this study is to determine what factors are most important in controlling the number of bacterial colonies found in twent represntative Denton County (Texas) soils during the growing season.
Contributing Partner: UNT Libraries
The Ecology of Chlorohydra Viridissima in a Small Perennial Pond

The Ecology of Chlorohydra Viridissima in a Small Perennial Pond

Date: August 1937
Creator: Graham, Elizabeth Coffee
Description: The purpose of this study is to determine the influence of chemical, physical, and bilogical factors on th seasonal variation in population and on reproduction of Chlorohydra Viridissima (Schulze) in a small pernnial pond.
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A Study of the Phytoplankton Population of Lake Dallas

A Study of the Phytoplankton Population of Lake Dallas

Date: June 1938
Creator: Bagwell, Russell L.
Description: The limnological investigation of any body of water is undertaken in order to secure more accurate information concerning the factors which play an important role in fish production or sanitation. This study shows the qualitative and quantitative planktonic algae in Lake Dallas, for the year 1937-38.
Contributing Partner: UNT Libraries
A Comparative Study of the Bottom Fauna of four Texas Lakes

A Comparative Study of the Bottom Fauna of four Texas Lakes

Date: August 1938
Creator: Lamb, Leonard D.
Description: This thesis attempted to study the bottom productivity both qualitatively and quantitatively with reference to the distribution of bonthos. The study of the bottom fauna in large reservior lakes is a relatively new field. This work will give more information on an unknown field than previously existed, although its scope is not intend to be exhaustive.
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The Origin of Ova in the Adult Opossum

The Origin of Ova in the Adult Opossum

Date: August 1938
Creator: Everett, Newton Bennie
Description: This study attempted to determine whether ova are formed from the epithelial covering of the ovary during sexual maturity, and if so to determine how they are formed and to see if there is any relation between the formation and the breeding season.
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Percolation, Capillarity and Chresard of Representative Denton County Soils

Percolation, Capillarity and Chresard of Representative Denton County Soils

Date: August 1938
Creator: Quimby, Don Clarence
Description: This paper deals with a study of the chresard, percolation, and capillarity of twenty representative Denton County soils. The group of soils chosen vary greatly in texture thus affording excellent material for comparative studies of edaphic factors based upon this property.
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Studies on the Bacterial Flora of Milk, Ice Cream, and Beverages in Denton, Texas

Studies on the Bacterial Flora of Milk, Ice Cream, and Beverages in Denton, Texas

Date: August 1938
Creator: Smith, William Russell
Description: The purpose of this study is to observe the frequency of occurrance of members of the colon group in various brands of milk, milk products, and soft drinks marketed in the city of Denton, and to determine the total number of bacterial organisms occuring in these products from week to week.
Contributing Partner: UNT Libraries
Variations in Soil Fungi of Ten Representative Soils of Denton, County, Texas

Variations in Soil Fungi of Ten Representative Soils of Denton, County, Texas

Date: August 1938
Creator: Floyd, Mary Louise
Description: This study attempted to examine representative soils of Denton County in an effort to determine seasonal and soil type variations in the fungous flora both quantitatively and qualitatively.
Contributing Partner: UNT Libraries
The Vegetation and Habitat Factors of Red River County, Texas

The Vegetation and Habitat Factors of Red River County, Texas

Date: August 1938
Creator: Adams, Exa T.
Description: The aim of this study has been to measure some of the ecological factors in a series of plant habitats and their relation to the existing vegetation in selected twenty soil types of Red River County, Texas.
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An Analysis and Evaluation of the Elementary Science Curricula in the State Universities and Leading Teachers Colleges in the United States

An Analysis and Evaluation of the Elementary Science Curricula in the State Universities and Leading Teachers Colleges in the United States

Date: 1940
Creator: Sanders, Agnes Ruth
Description: The purpose of this study is to determine the status of elementary science curricula in the different state universities and the leading teachers colleges in the United States.
Contributing Partner: UNT Libraries
A Bio-Chemical Comparative Study of the Plankton in Lake Dallas and Pecan Creek

A Bio-Chemical Comparative Study of the Plankton in Lake Dallas and Pecan Creek

Date: 1940
Creator: Brooks, Benjy Frances
Description: The purpose of this investigation is to compare the dissolved and suspended organic material in Lake Dallas to that coming into the lake through Pecan Creek.
Contributing Partner: UNT Libraries
Evaluation in Soil Moisture in Soil and Water Conservation Practices in Denton, Texas

Evaluation in Soil Moisture in Soil and Water Conservation Practices in Denton, Texas

Date: 1940
Creator: Rylander, Halley G.
Description: This investigation has attempted to show that soil and water conservation practices do increase the amount of soil moisture in five of Denton County, Texas soils: Denton clay, Durant clay, San Saba clay, Kirvin fine sandy loam, and Tabor fine sandy loam.
Contributing Partner: UNT Libraries
Plant Dermatitis: Hypersensitivity to the Oleoresins of Fifty Common Plants Indigenous to Hunt County, Texas

Plant Dermatitis: Hypersensitivity to the Oleoresins of Fifty Common Plants Indigenous to Hunt County, Texas

Date: 1940
Creator: Smith, Dean
Description: This investigation deals with the study of a possible hypersensitivity to the oleoresins of fifty common plants indigenous to Hunt County, Texas.
Contributing Partner: UNT Libraries
The Vegetation and Habitat Factors of Rockwall County, Texas

The Vegetation and Habitat Factors of Rockwall County, Texas

Date: 1940
Creator: Smith, W. Desby
Description: This paper consists of a study of the soils and vegetation found in Rockwall County, Texas. This county is located in the northeastern part of the state. Rockwall County lies in the northeastern part of the Black Waxy Belt of the Coastal Plains province.
Contributing Partner: UNT Libraries
A Comparative Study of Four Genealogies to Determine Predisposition to Cancer

A Comparative Study of Four Genealogies to Determine Predisposition to Cancer

Date: 1941
Creator: Andrew, Vivian Wilson
Description: This study was made in an effort first, to determine the mode of transmission of the inheritance of a predisposition to cancer as revealed through the analyses of four separate human genealogies, and second, to make a comparative study of the genealogies to determine whether the mode of transmission is the same.
Contributing Partner: UNT Libraries
Food Habit Analysis of the Two Species of Texas Crappie

Food Habit Analysis of the Two Species of Texas Crappie

Date: 1941
Creator: Mitchell Glenn C.
Description: This study is based upon information taken from stomach analysis of 302 black crappie and 561 white crappie; the following data will be presented: 1. Food of adults and fingerlings; 2. Diet variation in relation to food availability; 3. Seasonal variation of feeding habits; 4. Diet variation in relation to size of crappie. Collections were made from ten lakes located in North, East, Central, and South Texas.
Contributing Partner: UNT Libraries
The Phototropic Properties of Lactuca Ludoviciana (Nutt.) DC. and Silphium Laciniatum L.

The Phototropic Properties of Lactuca Ludoviciana (Nutt.) DC. and Silphium Laciniatum L.

Date: 1941
Creator: Neal, George C.
Description: This paper deals with certain phases of phototropic properties of two exceptional plants, the pertinent behavior of each being decidedly individualistic and in remarkable contrast to that of herbaceous plants in general. The prickly lettuce, Lactuca ludoviciana (Nutt.) DC. and the rosinweed, Silphium laciniatum L., two common Denton County, Texas, plants, have been selected for this study.
Contributing Partner: UNT Libraries
Seasonal Variations in Microflora of Four Denton County, Texas, Clay Soils

Seasonal Variations in Microflora of Four Denton County, Texas, Clay Soils

Date: 1941
Creator: Manire, Philip
Description: This investigation has for its aim the confirmation of the correlation between soil moisture and the microflora of soils, and a lesser relation between the soil temperature and the microflora. The soils used in this study are typical clay soils of Denton County, Texas. The samples were taken from virgin pasture lands and analyses made monthly or semimonthly. The wide seasonal variation of temperature and rainfall afford a good opportunity for this study.
Contributing Partner: UNT Libraries
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