68 PRESENT-DAY RATIONALISM 



by its effects and that those effects never occur away from 

 any being which is alive. 



It is easy to show that Prof. Dolbear is wrong when 

 he says : " All physiological phenomena whatever can be 

 accounted for without going beyond the bounds of 

 physical and chemical science "} For Directivity, which 

 always co-ordinates means with ends, cannot be a purely 

 chemical or physical force ; though those " ends " be 

 brought about by chemical and physical agencies. 



It is just those "ends," which Darwin called "pur- 

 poses," though he would insist upon the word being 

 metaphorically accepted, that sharply separate the organic 

 from the inorganic world. 



The late James Croll published an article entitled — 

 What Determines Molecular Motion ? — tJie Fundamental 

 Problem of Nature. 



I would add. What is the final cause or source of 

 Directivity in the organic world ? 



^ Op. cit., p. 279. 



