i] THE VITAL IMPETUS 97 



in general, and on the example of the eye in particular, 

 because we had to define our attitude toward mechanism 

 on the one hand and finalism on the other. It remains 

 for us to describe it more precisely in itself. This we 

 shall now do by showing the divergent results of evolution 

 not as presenting analogies, but as themselves mutually 

 complementary. 



