"Hecht [S]" Photocopies of articles by Selig Hecht, comprising: photocopy of "The Color Vision of Dichromats: I. Wavelength Discrimination, Brightness Distribution, and Color Mixture" by Selig Hecht and Simon Shlaer, in 'The Journal of General Psychology', vol. 20, number 1, (1936); photocopy of "The Color Vision of Dichromats: II. Saturation as the Basis for Wavelength Discrimination and Color Mixture" by Selig Hecht and Simon Shlaer, in 'The Journal of General Psychology', vol. 20, number 1, (1936); photocopy of pages from "Rods, Cones and the Chemical Basis of Vision" by S Hecht, in 'Physiological Reviews', vol. 17, (1937); photocopy of "The Visual Functions of the Complete Colorblind" by Selig Hecht, Simon Shlaer, Emil L Smith, Charles Haig, and James C Peskin, in 'The Journal of General Psychology', vol. 31, number 6, (1948). 1935-1948