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 Department: Department of Biology
 Collection: UNT Theses and Dissertations
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
Seasonal Variations in the Microflora of Four Denton County, Texas, Sandy Soils

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

Date: 1941
Creator: Emerson, Robert L.
Description: 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.
Contributing Partner: UNT Libraries
The Age, Growth, and Food Habits of the Lake Dallas White Bass, Lepibema Chrysops (Rafinesque)

The Age, Growth, and Food Habits of the Lake Dallas White Bass, Lepibema Chrysops (Rafinesque)

Date: 1942
Creator: Micks, Don W.
Description: 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.
Contributing Partner: UNT Libraries
A Determination of the Effects of Various Concentrations of Sodium Chloride upon the Growth of Three Species of Bacteria

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

Date: 1942
Creator: Davis, J. Floyd
Description: 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.
Contributing Partner: UNT Libraries
Edaphic Factors Which Control the Distribution of the Common Mesquite, Prosopis Chilensis (Molina) Stuntz in Denton County, Texas

Edaphic Factors Which Control the Distribution of the Common Mesquite, Prosopis Chilensis (Molina) Stuntz in Denton County, Texas

Date: 1942
Creator: Steph, Harlan J.
Description: This paper deals with the distributional outgrowths of Prosopis chilensis (Molina) Stuntz, the common mesquite, in Denton County, Texas.
Contributing Partner: UNT Libraries
The Seasonal Cycle in the Testis of the Large-Mouthed Black Bass, Huro Salmoides, (Lacepede)

The Seasonal Cycle in the Testis of the Large-Mouthed Black Bass, Huro Salmoides, (Lacepede)

Date: 1942
Creator: Johnston, Perry Max
Description: Study to determine the seasonal changes in histological and cytological structures in the testis of Huro Salmoides (Lacepede), the large-mouthed black bass.
Contributing Partner: UNT Libraries
Sanitary Aspects of the Swimming Pool of North Texas State Teachers College, Denton, Texas

Sanitary Aspects of the Swimming Pool of North Texas State Teachers College, Denton, Texas

Date: 1943
Creator: Self, Louise
Description: 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.
Contributing Partner: UNT Libraries