Ill 



COLOR 



All objects perceived by man, whether natural or 

 artificial, are visible because of their color, and 

 because of that alone. A thing is visible because 

 it is darker or lighter than something beside or 

 behind it or is of a different hue, and the shape of 

 its color mass gives the idea of form. This form 

 is often expressed by means of a line draw^i with 

 pencil, pen, or brush, though there is nothing in 

 nature which really warrants the use of such a 

 line, as everything is perceptible by masses, and 

 these masses consist of varying amounts of differ- 

 ent colors. The long-established conventions of 

 drawing have enabled us to perceive the idea of 

 objects when their outlines alone are represented, 

 and this abstraction has given rise to what is 

 termed "line-drawing," or drawing in outline. 

 The imagination of the spectator, rehing upon 

 memor}% fills in these outlines with the proper col- 

 ors, and thus the drawing indicates reality. These 

 outlines, however, are in themselves abstractions, 



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