The space-threshold of colours and its dependence upon contrast [microform] : first article

Lane, Wilmot B. (Wilmot Burkemar), b. 1871, Baird, John Wallace, 1869-1919. A case of abnormal colour-sense examined with special reference to the space-threshold of colours, Richardson, R. J. (Robert John). A case of abnormal colour-sense examined with special reference to the space-threshold of colours, Kirschmann, A. (August), 1860-1932. Additional remarks on colour- blindness · 1898 · [Toronto : s.n. · 6 pictures

This 1898 scientific article on colour perception, by Wilmot B. Lane with John Wallace Baird, R. J. Richardson and A. Kirschmann, was printed in Toronto for psychologists and physiologists studying colour-blindness and visual contrast. Its pictures are plain line graphs of many overlapping jagged polylines with Roman-numeral labels, offering a designer a model for dense, layered, hand-drawn chart linework in black on white.

Color-sense · Color-blindness · Perception des couleurs · Achromatopsie

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