220 LUCK, OR CUNNING? 



extinct forms is in some degree parallel to the embryo- 

 logical development of recent forms. . . . This doc- 

 trine of Agassiz accords well with the theory of natural 

 selection" (p. 338). 



" The theory of natural selection " became " our 

 theory" in 1869. The opinion of Agassiz accords 

 excellently with the theory of descent with modifica- 

 tion, but it is not easy to see how it bears upon the fact 

 that lucky races are preserved in the struggle for life 

 ■ — which, according to Mr. Darwin's title-page, is what 

 is meant by natural selection. 



Again : — 



" On the theory of descent with modification, the 

 great law of the long-enduring but not immutable 

 succession of the same types within the same areas, is 

 at once explained" (p. 3 40). 



Agaia : — 



"It must not be forgotten that, on my theory, aU 

 the species of the same genus have descended from 

 some one species" (p. 341). 



" My theory " became " our theory " in 1 869. 



Again : — 



" He who rejects these views on the nature of the 

 geological record, will rightly reject my whole theory " 



(P- 342). 



"My" became "our" in 1869. 



Agaia : — 



"Passiag from these diflSculties, the other great 

 leading facts in palaeontology agree admirably with the 

 theory of descent with modification through variation 

 and natural selection" (p. 343). 



