AND ITS APPLICATION TO THE DETERMINATION OF COLOUR SENSATIONS. 349 

 TABLE V. Normal Spectrum. 



100 

 90 

 80 

 70 

 60 kj 



ff.s. 



\ 





/ 



V 



\ij 



2 



30 







10 



X 



4500 



5000 



5500 

 LENGTHS. 



6000 



65CO 



6800 



SCAL OF 



Fig. 5. Percentage composition in luminosities of red, green, and blue sensations of the colours of 



the normal spectrum. 



