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.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc70304 |
| Date | January 1941 |
| Creators | Gary, Lois W. |
| Contributors | Scoular, Florence I., Reno, Eula B. |
| Publisher | North Texas State Teachers College |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | vi, 45 leaves : ill., Text |
| Rights | Public, Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved., Gary, Lois W. |
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