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 35
Colour Patch Apparahis. 19 movable screen in which is an aperture S,, the width of which can be varied as desired. The rays are again … collected by a lens L4, and form a white image of the surface of the last prism on the s;creen E. If the light passing through S2 is alone used, the image at E is c 2
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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