a08 



ROYAL SOCIETY OF CANADA 



vat.ions, one in the red and -tihe other j in the green, indicating the gener- 

 ally admitted composite character of the sensation of orange Light. 



TABLE 7. 



In general, we may conclude thait the experiments described in this 

 paper strongly support the view that the fundamental! colour sensations 

 are red, green and violet. 



I desirel to acknowledge my indebtedness to the kindness of Professor 

 E. L. Nichols, director of the Department of Physics, Cornell Univer- 

 sity, in whose laboratory these experiments were performed. 



