The detection of colour-blindness and imperfect eyesight : with a table of coloured Berlin wools and sheet of test-types (1884)
Roberts, Charles, 1836-1901, University of Leeds. Library · London : J. & A. Churchill · leaf 2
]iiiiueaa Clive wfis not happy. "Wliiit young uinn on earth couhl look for more ? A swcot young wife, a handsome home, of which the only eneumbmncc was nn old Father, who would give his last drop of blood in his son's belmlf. And it was all to bring about this end that Thomas Ncwcomo had toiled and… … CAGE ROB
Colour vision defects · Colour perception tests
Internet Archive · University of Leeds Library · Public domain (published before 1931). Free to use for anything.
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