BerkeleyG, 1709An Essay towards a New Theory of Vision (Dublin: Jeremy Pepyat). Reprinted 1922 (New York: Dutton)
2.
Von HelmholtzH, 1910Physiological Optics (New York: Dover, 1962); English translation by J P C Southall for the Optical Society of America (1925) from the 3rd German edition of Handbuch der physiologischen Optik (Hamburg: Voss, 1910)
3.
RockI, 1984Perception (New York: Scientific American Library)