§55 XIX. ARRANGEMENT OF COLOURS. 151 



lightness (see pp. 97, 99, 110); that allowance must be made 

 for some colours diminishing each other's effect (pp. 10a, 11, 

 59, 62, 97, 101); that others increase the effect of a neigh- 

 bour by contrast, as black and white, red and orange, and 

 others ; that some change the hues of those in juxtaposition 

 with them, as black next to red, or to green (p. 102); and 

 that some borrow from each other and form to the eye the 

 compound colour they would have if mixed together, as red 

 and blue, which look purple at some distance when no yellow 

 or white intervenes between them to keep them distinct. 

 (pp. 9, 61.) 



XIX. I now offer illustrations of the mode of putting to- 

 gether certain colours ; supposing them to be given in a con- 

 fused mass, and requiring arrangement in harmony and proper 

 proportion. We will suppose, then, that the following are 

 before us: — black, blue, red or rather scarlet, green, orange, 

 and purple, as single colours in equal quantities, placed to- 

 gether in very inharmonious order, as in PI. n. fig. 1 ; and are 

 to be made into a pattern. They may be arranged as in fig. 2. 

 But it must be observed, that the quantity of each colour is 

 not necessarily confined to that here given ; and I have selected 

 a design to show the effect of the colours on each other, rather 

 than one well adapted for so varied a combination. {See Descr. 

 of Plate II.) Nor would it suit this design to be viewed by 

 candlelight, as the darkness of the black and blue would be 

 fatal to it; and a greater quantity of green would then be 

 required. {See Sect. IV. p. 97.) 



Among many harmonious proportions may be mentioned 

 12 of blue, 4 scarlet, 3£ crimson, 2 orange, 5 yellow, 4 green, 

 4 white, on a black (or grey) ground ; and some proportions 

 and arrangements of blue, scarlet, yellow, black, white, and 

 other colours are given in PI. iv. and v. 



Specimens of harmonious combinations may also be re- 

 ferred to in various works, as in "Waring and Macquoid's 



1. 4 



