the later hypothesis affords a mental picture of 

 relations among all the reminiscences involved, 

 clearer and more direct than that given by the 

 earlier one ; and that in no instance has there been 

 any attempt to prove scientifically that either hypo- 

 thesis enunciates a pre-existing decree, or that one 

 represents an external reality any more than the 

 other. This seems to show that science consists 

 in the orderly and intelligible syntaxis of our own 

 reminiscences ; a process which may very well be 

 part of the function of the nervous organism. I 

 have further endeavoured, in this third section, to 

 show that, from a very early stage of evolution, the 

 power of syntaxis would be advantageous to all 

 nervous organisms in respect of the guidance of 

 action, and that the advantage thus obtained would 

 be sufficient to determine the lines of the develop- 

 ment of nervous function in our progenitors, and 

 ultimately in ourselves. 



