The present study is part of a long time cooperative study of the Education and Home Economics Departments of North Texas State Teachers College begun in 1940. The purpose is to compare the dark adaptations of second and third grade children made in 1940 with those made in 1941, and to determine also the dark adaptation of a group of fifth and sixth grade children receiving vitamin A concentrate.

Recent studies have offered an abundance of evidence which indicates that night blindness is caused by vitamin A deficiency. Both adults and children have been used to investigate the relationship between vitamin A deficiency and night blindness.

Because of the paucity of evidence with regard to dark adaptation and the vitamin A status of pre-school children, this study is made. The purpose, therefore, is to add to the available data on this subject through an investigation of the bio-photometer as a means of detecting vitamin A deficiency in pre-school children.

The present study is a part of a long-time cooperative study of the Home Economics Department of the North Texas State Teachers College, begun in 1940. The purpose is to compare the dark adaptations of second and third-grade children made in 1940 with those made of the same children in 1941 and in 1942. Also included in this study is the comparison of a group of freshmen college men made in 1940 with a group of twenty-five men made in 1942. An attempt is also made to determine whether an individual has higher dark adaptation on sunshiny days than on cloudy days.

It is the purpose of the study to determine if the addition of Vita Yam as a source of vitamin A to the daily diet improves the dark adaptation of college-age students.

The purpose of this study was to determine the riboflavin intake in food and the excretion in the urine and feces of young college women living in the home management house and eating a self selected diet from a common food supply.

The purpose of this study is to determine the nicotinic acid values of the food consumed and the urinary and fecal excretions of young college women on self-selected diets.

Weight loss maintenance and emotional and physical problems were investigated in subjects on a protein-sparing modified fast. Four months following a weight reduction program using the protein-sparing modified fast, twenty of the forty-two subjects were contacted. Each was asked to complete a questionnaire related to emotional and physical effects of the diet and a diet history checksheet. Each subject was weighed to determine if weight loss had been maintained. Results of the questionnaire, diet history, and blood chemistry analysis indicate that for these subjects, the modified fast may be safe and effective in reducing and maintaining weight loss over a short time period under close supervision by a physician.