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A Correlation of the Edaphic Factors with the Vegetation of the Woodbine Sands, Denton County, Texas
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.
Moisture Relations of the Soils of Denton County
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.
A Study of Plankton Dilution in Source Streams Compared with that of Lake Dallas Proper
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.
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.
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.
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.
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.
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.
A Study of the Phytoplankton Population of Lake Dallas
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.
A Comparative Study of the Bottom Fauna of four Texas Lakes
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.
The Origin of Ova in the Adult Opossum
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.
Percolation, Capillarity and Chresard of Representative Denton County Soils
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.
Studies on the Bacterial Flora of Milk, Ice Cream, and Beverages in Denton, Texas
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.
Variations in Soil Fungi of Ten Representative Soils of Denton, County, Texas
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.
The Vegetation and Habitat Factors of Red River County, Texas
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.
An Analysis and Evaluation of the Elementary Science Curricula in the State Universities and Leading Teachers Colleges in the United States
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.
A Bio-Chemical Comparative Study of the Plankton in Lake Dallas and Pecan Creek
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.
Evaluation in Soil Moisture in Soil and Water Conservation Practices in Denton, Texas
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.
Plant Dermatitis: Hypersensitivity to the Oleoresins of Fifty Common Plants Indigenous to Hunt County, Texas
This investigation deals with the study of a possible hypersensitivity to the oleoresins of fifty common plants indigenous to Hunt County, Texas.
The Vegetation and Habitat Factors of Rockwall County, Texas
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.
A Comparative Study of Four Genealogies to Determine Predisposition to Cancer
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.
Food Habit Analysis of the Two Species of Texas Crappie
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.
The Phototropic Properties of Lactuca Ludoviciana (Nutt.) DC. and Silphium Laciniatum L.
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.
Seasonal Variations in Microflora of Four Denton County, Texas, Clay Soils
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.
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.
Bacteriological Studies of the Campus Drinking Fountains of North Texas State Teachers College Denton, Texas
"In order to gain an adequate idea of the sanitary condition of the drinking fountains on the North Texas State Teachers College campus, it was found necessary to approach these bacteriological studies from a seasonal point of view."--1.
The Age, Growth, and Food Habits of the Lake Dallas White Bass, Lepibema Chrysops (Rafinesque)
This study was made to secure certain new information concerning the food habits and growth of the white bass, Lepibema chrysops (Rafinesque), which is quite generally considered a good game and good fish.
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.
Edaphic Factors Which Control the Distribution of the Common Mesquite, Prosopis Chilensis (Molina) Stuntz in Denton County, Texas
This paper deals with the distributional outgrowths of Prosopis chilensis (Molina) Stuntz, the common mesquite, in Denton County, Texas.
The Seasonal Cycle in the Testis of the Large-Mouthed Black Bass, Huro Salmoides, (Lacepede)
Study to determine the seasonal changes in histological and cytological structures in the testis of Huro Salmoides (Lacepede), the large-mouthed black bass.
Sanitary Aspects of the Swimming Pool of North Texas State Teachers College, Denton, Texas
This investigation was conducted in order to show that insanitary conditions may exist in the swimming pool at North Texas State Teachers College provided the proper precautions are not taken; and, in contrast that this pool can be sanitary and entirely safe when operated and used according to the necessary sanitary specifications.
The Spermatophytes of Tarrant County, Texas
The problem consisted of thoroughly exploring Tarrant County, Texas, in an attempt to collect and study critically as many species of Spermatophytes as possible. In addition a thorough examination was made of herbarium specimens assembled from the region by other botanists.
Bacterial Survey of Representative Wells of Canyon, Texas, with Special Emphasis on Sanitation
The problem of this thesis consists of a bacterial analysis of twenty-five representative wells within a radius of thirty miles of Canyon, Texas. An attempt has been made to determine the possible presence of the typhoid organism in these wells.
Bacterial Survey of the Sources of Drinking Water of Trinidad, Texas, with Special Reference to Sanitation
A bacterial analysis of the water from thirty-six sources of consumption by the white population of Trinidad, Henderson County, Texas, was made to determine the potability of each of these in regard to infection from typhoid or related organisms.
The Incidence of Escherichia Coli and other Coliform Organisms on Seventy-One Samples of Fresh Fruits and Vegetables Purchased from Eight Grocery Stores in Denton, Texas
This investigation has for its aim the explanation of the incidence of colon bacteria on a number of food samples purchased in grocery stores of Denton, Texas, by an analysis of correlative sanitary factors.
A Preliminary Investigation of the Effects of Various Fertilizers on Plankton and Fish Production in Small Texas Ponds
This problem was undertaken to determine a suitable combination of fertilizers that would increase the food in a lake, resulting in increased yield of bass and crappie.
The Taxonomic Significance of the Foliar Epidermal Hairs of Several Families of Dicotyledons
The present investigation deals with the study of non-glandular epidermal hairs from the leaves of two hundred representative dicotyledons of forty-eight families in the Central North Texas area. Special attention has been given to the Compositae and Leguminosae in an effort to find a possible correlation between epidermal hair morphology and the taxonomic position of the plants concerned.
Composition and Distribution of the Vegetation in Farm Pastures in Denton County, Texas
This investigation has for its aim the determination and the evaluation of the vegetational composition in certain farm pastures in Denton County, Texas.
Developing Range Condition Classes for the North Grand Prairie of Texas
This paper deals with a study of the ranch lands in Cooke, Wise, Denton, and Montague Counties, which are located in the North Grand Prairie of Texas.
The Incidence of Colon Bacteria on the Hands of North Texas State Teachers College Students
This investigation has for its aim the determination, in a measure, of the degree of personal sanitation existent among students at North Texas State Teachers College, Denton, Texas.
A Quantitative and Qualitative Bacterial Analysis of Pecan Creek
Since Pecan Creek receives sewage wastes from an obviously inadequate disposal system, it seemed possible that it could receive pathogenic bacteria. The fact that these might be present in numbers sufficient to cause epidemics, provided the proper natural vectors were present, stimulated an interest in and the pursuance of this study.
Seasonal Food Habits of Five Species of Texas Centrarchids
This study is one phase of a research program designed to provide basic information which can be used in the management of East Texas Lakes.
Chemical and Physiological Properties of an Antibiotic Produced by a Variant of the Penicillium Notatum-Chrysogenum Group
The present study of the production and properties of an antibiotic was undertaken in the hope that some useful information could be contributed to a long-range investigation program being carried on at North Texas State Teachers College. This program is concerned with the production of a useful antibiotic from a variant of the Penicillium notatum-chysogenum group of molds.
The Effect of Media Constituents on Growth and Pigment Production of Mycobacterium Phlei, Pseudomonas Fluorescens, Pseudomonas Aeruginosa, and Staphylococcus Citreus
Little is known concerning the production and significance of bacterial pigments. There is seemingly an open field for studying the effects produced by varying the nutritive content of culture media upon which organisms are grown. This has led to an especial interest in, and the purpose of this investigation.
The Effect of Medium Constituents upon Pigment Production by Four Species of Bacteria
This investigation had for its aim the determination of the effects of various materials, added to the basic culture medium, upon pigment production of the four chromogens Staphylococcus aureus, Sarcina lutea, Serratia marcescens, and Rhodococcus cinnabaris.
The Effects of Media Constituents Upon the Growth and Pigment Production of Micrococcus Flavus, Micrococcus Roseus, Micrococcus Subcitreus, and Sarcina Citrea
This investigation has for its aim the explanation of growth and pigment production of Micrococcus flavus, Micrococcus roseus, Micrococcus subvitreus, and Sarcina citrea by the addition of various nutrient test materials to a standard culture medium.
The Vegetation of the Austin Chalk Formation of Collin County, Texas
This study had for its aim the collection, identification, and listing of the spermatophytes growing upon the Austin Chalk formation of Collin County, Texas.
The Age and Rate of Growth of the Black Crappie, Pomoxis Nigro-Maculatus (Le Sueur), and the White Crappie, Pomoxis Annularis Rafinesque, in the Koon Kreek Klub Lakes, Texas
This study is another phase of the overall research program designed to furnish basic information for the management of East Texas lakes and has as its specific purpose the determination of the age and growth characteristics of two valuable species on these waters. The species to be considered are the black crappie, Pomoxis nigro-maculatus (Le Sueur) and the white crappie, Pomoxis annularis Rafinesque. Both species are highly regarded as food fish and have for many years offered recreational outlets for Texas fishermen.
Microflora of Frozen Fruits and Vegetables Dispensed from Grocery Stores in Denton, Texas
This investigation was carried out in order to determine whether or not blanching and freezing tends to reduce the incidence of bacteria, particularly those of the coliform group, and also the yeasts and molds.
The Reproductive Cycles of Five Species of Texas Centrarchids
This thesis examines the reproductive cycles of five species of Texas centrarchids: the largemouthed black bass, the black crappie, the bluegill, the redear sunfish, and the striped bass. In this report attention is given to the reproductive cycles of the five species for a period of one year.
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