i CONFOUNDING OF DISTINCTIONS 21 



the phrases and formulae of the Dar- 

 winian hypothesis. And he does so 

 with memorable results. What he him- 

 self always aims at is to obliterate the 

 separating lines between the organic and 

 the inorganic, and to reduce all the 

 phenomena of life to the terms of 

 such purely physical agencies as the 

 mechanical forces, light, heat, and 

 chemical affinity, etc. In this quest he 

 finds the Darwinian phrases in his way. 

 Accordingly, although himself the author 

 and inventor of the most popular among 

 them, he turns upon them a fire of most 

 destructive criticism. He allows them 

 to be, or to have been, " convenient and 

 indeed needful " l in the conduct of dis- 

 cussion, but he condemns them as 

 11 liable to mislead us by veiling the 

 actual agencies " in organic evolution. 

 That very objection which has always 

 1 P. 749- 



