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Dark Adaptation Studies with Adults and Children, Using the Biophotometer
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.
Date:
1942
Creator:
Collins, Mary Margaret
System:
The UNT Digital Library
A Study of the Effect of Feeding High Vitamin A Foods Upon the Dark Adaptation of College Girls
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.
Date:
1942
Creator:
Lewis, Amber Loreta
System:
The UNT Digital Library