DEDUCTION. GENERAL INSTANCES. 



other movements of plants were shown to be 

 modifications of a universal movement. What 

 was at first a difficulty in the way of evolu- 

 tion became, like the structure of the flowers 

 of orchids, the ocelli of the peacock,, and the ex- 

 pression of the emotions, one of the strongest 

 supports of the theory. 



12 



