270 



EXPERIMENTS ON THE PERCEPTION OF COLOUR. 



These operations being performed, gave 



V. U. G. W. B. 



(W) + 701 + 2282 + 1060-1474-3641 + 1072 = 0. 

 (Y) +2863 -2761 + 1235 + 1131 299-2767 = 0. 



Y. 



Kr-.ni tlu-se were obtained the following results by elimination: 



TABLE V. 



JAMES CLERK MAXWELL. 



M..UR, June 13, 1857. 



