448 THE BIOCOSMOS HISTORICAL. 



rial function of the Great Man, as already in- 

 dicated. 



In this way concludes the second period of 

 his Biography, with a prodigious blare of the 

 triumphal trumpet over the whole civilized 

 world. He has now made explicit his thought 

 so long implicit, has realized his Idea, brooded 

 over for more than twenty years, in one colos- 

 sal manifestation. What next? 



III. EVOLUTION MADE UNIVERSAL. That is, 

 Darwin proceeds during the rest of his life 

 the concluding period to apply his theory to 

 all Nature, not leaving out wholly the psy- 

 chical side (1859-82). This period is about as 

 long as the second. Having made explicit his 

 one central principle, he goes forward to uni- 

 versalize it, showing its validity as well as its 

 extent in a number of departments of science. 



We can see that the implicit germ of his 

 first period had now come to complete fruit- 

 age, and his life is rounded out. The vast 

 disorganized, scattered experiences of his voy- 

 age round the world he orders after a single 

 fundamental thought which he has evolved out 

 of the mass, which is to be ordered. A world 

 of facts he gathers one by one in his world- 

 trip, and crams them into his brain, belabor- 

 ing them till he finds the principle by which 

 they are to be organized, and then he proceeds 

 in his last period to organize them after this 



