Colour-blindness and Colour-perception

able according appear asked band becomes blind blue blue-green Book bright brown called candidate centre chapter Classification cloth colour colour-blind colour-blind person colour-perception combination complementary confuse considerably Containing contrast correctly corresponding Crown 8vo dark daylight defect definite Demy difference difficulty distance distinguish English evident examination fact Fcap Fourth gaslight gives glass gray green History Illustrations India intensity junction Language light looked Maps marked match method mistakes Nature neutral normal normal-sighted Notes noticed objects obtained orange Origin painted pass perception person physical piece pink Plates portion Post practical present produced psycho-physical pure purple rays red and green regard represented respectively result rose Royal Second Edition seen shade shortened shown sighted similar spectrum standard theory Third Edition three-unit tion Translated two-unit units violet vols wools yellow yellow-green