MOTION OF THE FEATURES OF A PORTRAIT. 121 



well-known fact, that when the eyes of a portrait 

 look at a spectator in front of it they will follow 

 him, and appear to look at him in every other 

 direction. This curious fact, which has received 

 less consideration than it merits, has been often 



Fig. 27. 



Fig. 28. 



evil, are called up in contrast, and as the preserver 

 or the destroyer of his line, he stands, as it were, 

 in judgment before them. His imagination, thus 

 excited by conflicting feelings, transfers a sort of 

 vitality to the canvas, and if the personages do 



