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Start Over Authors Jeffries, B. Joy (Benjamin Joy), 1833-1915 ✖Remove constraint Authors: Jeffries, B. Joy (Benjamin Joy), 1833-1915 Titles Color-blindness: a lecture on color-blindness and its practical relations, delivered April 11, 1878 at the Institute of Technology ✖Remove constraint Titles: Color-blindness: a lecture on color-blindness and its practical relations, delivered April 11, 1878 at the Institute of Technology

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  • Jeffries, B. Joy (Benjamin Joy), 1833-19151

  • Color-blindness: a lecture on color-blindness and its practical relations, delivered April 11, 1878 at the Institute of Technology1