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Possible uses of North Texas Plants and Animals in Elementary Science
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.
Date:
May 1937
Creator:
Millican, Addie
System:
The UNT Digital Library
The Ecology of Chlorohydra Viridissima in a Small Perennial Pond
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.
Date:
August 1937
Creator:
Graham, Elizabeth Coffee
System:
The UNT Digital Library
Bacterial Survey of Representative Denton County Wells with Special Reference to Sanitation
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.
Date:
June 1937
Creator:
Roberts, Sally Stevens
System:
The UNT Digital Library
A Yearly Study of the Bacterial Flora of Lake Dallas Water with Special Reference to Sanitation
The purpose of this thesis is to determine the relative numbers of colon bacteria in the water of Lake Dallas.
Date:
June 1937
Creator:
Foster, Edwin Michael
System:
The UNT Digital Library
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
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.
Date:
August 1937
Creator:
Roach, Cornelia Ann
System:
The UNT Digital Library