Proeve eener genetische verklaring van den kleurzin
A Dutch-language 1884 scientific treatise by the physiologist F. C. Donders, published in Amsterdam, attempting a genetic explanation of colour vision and its defects. Its pictures are plain black-and-white graphs on dark grid backgrounds, with curved lines plotted against wavelength axes labelled with spectral letters and numbers, offering a designer a stark, precise scientific chart vocabulary of gridlines, labelled axes and sweeping curves.
