"Wright [W D] & Thomson [L C]" Photocopies of articles, annotated by Smith, comprising: "The Convergence of the Tritanopic Confusion Loci and the Derivation of the Fundamental Response Functions" by W D Wright and L C Thomson, in 'Journal of the Optical Society of America', vol. 43, number 10, (October 1953); "The Characteristics of Tritanopia" by W D Wright, in 'Journal of the Optical Society of America', vol. 42, number 8, (August 1952); "The spectral sensitivity of the fovea and extrafovea in the Purkinje range" by H V Walters and W D Wright, in 'Proceedings of the Royal Society, Section B', vol. 131, number 865, (1943). 1943-1953