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Start Over Authors Oliver, Charles A. (Charles Augustus), 1853-1911 author ✖Remove constraint Authors: Oliver, Charles A. (Charles Augustus), 1853-1911 author Titles Some of the inefficiencies of the methods ordinarily employed by railway surgeons for the detection of subnormal color-perception (color-blindness) ✖Remove constraint Titles: Some of the inefficiencies of the methods ordinarily employed by railway surgeons for the detection of subnormal color-perception (color-blindness) Genre Address ✖Remove constraint Genre: Address Copyright Public domain ✖Remove constraint Copyright: Public domain

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  • Oliver, Charles A. (Charles Augustus), 1853-1911 author1

  • Some of the inefficiencies of the methods ordinarily employed by railway surgeons for the detection of subnormal color-perception (color-blindness)1