The colour-matching functions and visual research 673 – 676
W David Wright
Interindividual receptor variability of normal colour observers: analysis of the 2-deg Stiles and Burch data 677 – 687
Oscar Estévez
The equivalent background of bleaching 689 – 703
William A H Rushton, Donald I A MacLeod
The π mechanisms of W S Stiles: an historical review 705 – 728
Edward N Pugh Jr, Daniel B Kirk
The spectral sensitivities of the middle- and long-wavelength cones: an extension of the two-colour threshold technique of W S Stiles 729 – 754
Andrew Stockman, John Mollon
Similarity of normalized discrimination ellipses in the constant-luminance chromaticity plane 755 – 763
Robert M Boynton, Alien L Nagy, Rhea T Eskew Jr
The Stiles summation index applied to heterochromatic brightness matching 765 – 776
Mitsuo Ikeda, Yasuhisa Nakano
The Stiles - Crawford effect of the first kind (SCE I): studies of SCE I in an aniridic observer 777 – 784
Jay M Enoch, Vasudevan Lakshminarayanan, Shinichi Yamade
The Stiles - Crawford effect of the second kind (SCII): a review 785 – 799
Mathew Alpern
Author index 801 – 804
Subject index 805 – 807
