Dark Adaptation Studies with Adults and Children, Using the Biophotometer

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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 … continued below

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vii, 62 leaves : ill.

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Collins, Mary Margaret 1942.

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  • Collins, Mary Margaret

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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.

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vii, 62 leaves : ill.

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  • 1942

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  • Jan. 13, 2012, 11:33 a.m.

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  • Oct. 22, 2014, 11:49 a.m.

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Collins, Mary Margaret. Dark Adaptation Studies with Adults and Children, Using the Biophotometer, thesis, 1942; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc70333/: accessed April 27, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .

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