62 EXPRESSION. 



tionable vapour which has already intruded ; and 

 forthwith we expire through both nostril and 

 mouth. 



Resolution is expressed mainly by the mouth ; 

 compressed lips indicating opposition to assault or 

 entreaty from without, or the closing up of any ten- 

 dency to yield from within. In the pout of discon- 

 tent the angles of the mouth are drawn in as in all 

 expressions of dissent, while the projection of the 

 lips is in readiness for an expressive expiration ren- 

 dered audible, it may be, by a labial ; just as, when 

 the teeth and jaws take up the symbolic action 

 instead of the lips, naturally syllables with dentals 

 lie to hand. By what slight circumstances expres- 

 sion of features may be modified is seen by the very 

 different impression produced by a protruded and 

 contracted mouth ready for an inspiration. 



Hitherto I have made little mention of the mus- 

 cles of the forehead. What Mr. Darwin has written 

 on the " grief muscles " l is exceedingly suggestive ; 

 yet I own that, to my mind, it falls short of explain- 

 ing the phenomena which he so graphically depicts. 

 The frown expresses displeasure by the descent 

 and gathering together of the two eyebrows, and 

 so far is in perfect keeping with the principle of 

 symbolic correlation which I have tried to give 



1 Op. cit. p. 181. 



