10 
angles of an equilateral triangle, present both the harmonizing 
and contrasting tints to each colour at one view. If this diagram 
be well considered, it will be found a certain guide for arrang¬ 
ing colours in whatever subject they may be employed upon; 
for nature is uniform in her laws; the objects may be changed 
on which colours are thrown, but the distribution of light and 
colour is the same throughout all her works. 
Y 
G / \ O 
B ^-R 
V 
In this diagram, let Y, R, and B, represent the three primi¬ 
tive colours, Yellow, Red, and Blue; if Y be produced to R, and 
R to Y, the compound formed by the conjunction of these two 
is Orange:—if B be produced to R, and R to B, it is Violet; 
and by the conjunction of Y and B, the colour formed is Green. 
The angles, therefore, represent the true primitive colours; the 
central intermediate points the pure compounds. Orange, Green, 
and Violet; and every spot between these show the different 
shades of these compounds, each partaking most of the nature 
of the primitive to which it approximates. 
