DESCRIPTION OF PLATES AND WOODCUTS. 



PAST I. 



Plate I. is intended to show how blue, red (or scarlet), white, black, 

 green, and gold may be combined in a mosaic pattern. The idea 

 of its general configuration is taken from one of the borders 

 which separate the fresco paintings in Giotto's Chapel, at Padua, and 

 it has been varied to suit the arrangement of the colours. The 

 quantity and disposition of the green will serve to show how small 

 a proportion of that colour is required, and how it brightens up a 

 design. (See p. 63.) The gold too illustrates what I have said in 

 pp. 107, 117, of its being employed in greater quantity than orange 

 or yellow. As an instance of the black lines separating the chief 

 sections of the design, mentioned in p. 108, see Blue, D 2, p. 135. 



Plate II. shows how the seven colours, orange, yellow, blue, purple, 

 green, red (or scarlet), and black, given promiscuously in fig. 1, 

 may be arranged in harmonious order, as in fig. 2. It is one of 

 many different arrangements which may be made of those colours ; 

 in some of which more or less red, or blue, or others, may be intro- 

 duced, according to the required effect. For though, as a general 

 rule, the blue should be in greater quantity than red, it is possible 

 to have perfectly harmonious combinations even where these pro- 

 portions are disregarded. There are cases, for instance, when more 

 red may be used than blue ; and sometimes the red may be con- 

 fined to a very minute quantity. 



In fig. 2, it will be observed how much better blue and orange 

 are suited to each other than blue and yellow, which are rather 

 harsh. Here too the power of a small quantity of green is very 

 apparent. (See pp. 63, 146, 166.) The design is not very well 

 suited to the arrangement of colours; but it may serve as an in- 

 stance of colour in a geometrical figure. 



Plate III. Figs. 1 and 12 give different arrangements and quantities 

 of the same colours, blue, orange, black, white, and green. They 

 are both harmonious. (See Blue, C 9, p. 134.) 



