LOCALIZATION OF EXPKESSION. 197 



To illustrate by a supposed case, say that our 

 common experience tells us that a certain man 

 presents a facial expression of " mental anxiety," 

 and on personal inquiry he acknowledges that he 

 is suffering from causes producing " mental anxiety." 

 On making a physical analysis of the expression by 

 the methods suggested, we find that the expression 

 is equal on either side therefore the expression is 

 symmetrical; we see the special signs of anxiety 

 more when observing the upper zone than when 

 looking at the middle and lower parts hence the 

 expression is symmetrical and principally located 

 in the forehead, or upper zone. The nerve-muscular 

 signs of the brain condition whose mental action is 



o 



" anxiety " are localized in the frontal region, and 

 these signs are direct expression. In thus studying 

 a face we look to the nerve-muscular condition of 

 the various regions, and observe the effects of the 

 kinetic action of the brain. 



We may next inquire what the trophic conditions 

 of the face teach us. We look for those signs in 

 the face which experience teaches us are commonly 

 associated with certain coincident conditions of 

 brain development conditions of the skull or brain 

 case, its form and size, the form of the forehead, 

 etc. The structure of the skin of the face, whether 

 it be fine and thin or coarse and thick ; the features 

 of the face the lips, cheeks, nose, and the size and 

 proportions of the mouth demand attention. 



In looking at different types of faces, we are at 

 once struck with the fact that the passive appear- 

 ance of some expresses intellectuality, while others 



