"Colour-blind" Quotes from Famous Books
... brightness corresponds less with a green of less brightness than with a blue of the same brightness. In order to bring all greens together the Chukches thus require to learn a new abstraction". Of 300 persons who were examined, 273 had a fully developed colour-sense, nine were completely colour-blind, and eighteen incompletely colour-blind, or gave ... — The Voyage of the Vega round Asia and Europe, Volume I and Volume II • A.E. Nordenskieold
... intercrossing" is practically at an end. Even the famous puzzle of sex-limited inheritance is solved, at all events in its more regular manifestations, and we know now how it is brought about that the normal sisters of a colour-blind man can transmit the colour-blindness while his normal brothers cannot ... — Darwin and Modern Science • A.C. Seward and Others |