Introduction. 



maintains that man is endowed with certain muscles solely for 

 the sake of expressing his emotions. As this view is obviously 

 opposed to the belief that man is descended from some other and 

 lower form, it was necessary for me to consider it. I likewise 

 wished to ascertain how far the emotions are expressed in tho 

 game manner by the different races of man. But owing to tho 

 length of the present work, I have thought it better to reserve 

 my essay for separate publication. 



