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CHAPTER XL 



EXPHESSION IN THE HUMAN FACE. 



The face as an index of the mind Definition of the face ; its 

 structure Facial muscles and their nerve supply ; the sympa- 

 thetic nerve Form, colour, and mobile conditions of the face 

 Direct expression of brain action in the face ; expression by 

 coincident development Action of the facial muscles 

 Method of analyzing a face : the upper, middle, and lower 

 zones ; symmetry ; analysis of the expression of anxiety 

 Expression by trophic signs, skin The intellectual, and the 

 vulgar face The necessity of considering nerve-muscular 

 signs as well as permanent conditions Faces of idiots 

 Nutrition of the face ; a dull and a bright face What may be 

 seen in a man's face Impressions of previous movements of 

 the face Mental suffering compared with bodily suffering 

 Asymmetrical expressions ; winking, snarling The long face, 

 due to paralysis of the nerve on one or both sides : due to 

 mental states ; facial palsy from brain disease Intellectuality 

 of facial movements The face in fatigue; the expression of 

 headache The disengaged face free for mental expression 

 Cases of expression from brain disease Conflict of muscles in 

 the face. 



THE human face has been often described as an 

 index to the mind, and in most treatises on expres- 

 sion the passive and the changing conditions, of the 

 countenance are largely discussed. It is, then, un- 

 necessary that I should say anything to prove that 



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