THE HUMAN COLOUR SENSE. 



169 



7. Violet 



associated with yellow or bine to form the reds and the 

 violets (probably a kind of red ?). From this also it will be 

 seen that every colour in the scale has been made to take its 

 part as a primitive by special authority, thus : — 



Newton and Brewster. 



Rosenstiehl. 



Newton and Brewster. 



Rosenstiehl. 



Young and Helraholtz. 



Newton and Brewster. 



Often confounded with blue 



and violet. 

 Young and Helmholtz. 



Physically speaking, there would appear to be ground 

 enough for any unbiased person to form the conclusion that 

 no one colour in the rainbow can be more primitive than 

 another, or a bit more than any one sound can be, taken in 

 the abstract. Independently of relative refrangibility, and 

 taking the analogy of sound into consideration, the relative 

 position of the colours in the scale would naturally determine 

 their relative importance. This will be apparent in the fol- 

 lowing tallies, corresponding ratios in the vibrations pro- 

 ducing definite pitch in sound and definite hue in light. 



Table I. 



The Symmetkical Scale of Colour. 



-380- 



-190<r^ >'I90- 



