|Description||Photocopies of articles and offprints, comprising:|
"Discrimination of Colour. I. Comparison of Three Psychophysical Methods", by Michael H Siegel, 'Journal of the Optical SOciety of America', vol. 52, number 9, (September 1962);
"Colour Discrimination in the Cat" by Jeri A Sechzer and John Lott Brown, in 'Science', vol. 144, 24 April 1964;
"Aftereffect of Seen Motion with a Stabilized Retinal Image" by Robert William Sekuler and Leo Ganz, in 'Science', vol. 139, 1 February 1963;
offprint "The Veiling Function and Non-Additivity in Flicker-Fusion" by T Shipley, in 'Vision Research', vol. 1, (1961);
"Ratio Comparisons of Color Differences" by Y Sugiyama and Hilton Wright, in 'Journal of the Optical Society of America', vol. 54, number 1, (January 1964);
"Effect of Chromatic Adaptation on Normal and Dichromatic Red-Green Brightness Matches" by Roseanne G Speelman, in 'Journal of the Optical Society of America', vol. 53, number 9, (September 1963);
offprint "Rod-Cone Duplexity and the Autonomic Action of Light" by T Shipley, in 'The Journal of Vision Research', vol. 4, numbers 1/2, (1964).