332 "THE ORIGIN OF SPECIES." 



only that the greatness of his achievement and its en- 

 during influence upon the progress of knowledge have 

 won him a place beside our Harvey ; but, still more, that, 

 like' Harvey, he. has lived long enough to outlast detrac- 

 tion and opposition, and to see the stone that the builders 

 rejected become the head-stone of the corner. 



