Colour vision [electronic resource] : being the Tyndall lectures delivered in 1894 at the Royal Institution (1895)
Abney, William de Wiveleslie, Sir, 1843-1920, Parsons, John Herbert, Sir, 1868-1957, donor, Institute of Ophthalmology, University College, London. Library Services · London : Sampson, Low, Marston & Company · leaf 39
Simple and Complex Colotirs. 23 of the reflected beam, and throw the patch of light formed by it on a white surface A (Fig. 6), alongside the patch of light B formed by the spectrum. Next let us pass a single aperture (Fig. 7), which can l)e opened and closed by a screw arrangement, through the… … simple and the complex colours are identical. This illustration of the want of power of the eye to analyse colour might be repeated as often as we like. We may pass coloured wools, for in- stance, through the length of the spectrum and show that they have the property of appearing bright in, and…
Ophthalmology · Eye · Color vision · Color Perception
Internet Archive · UCL Library Services, University College London (UCL) · Public domain (published before 1931). Free to use for anything.
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