228 LUCK, OR CUNNING? 



only. Waiving this again, we note that the theories 

 of independent creation and of natural selection are 

 contrastedj as though they were the only two alter- 

 natives ; knowing the two alternatives to be indepen- 

 dent creation and descent with modification, we 

 naturally took natural selection to mean descent with 

 modification. 



Again : — 



" On the theory of natural selection we can satis- 

 factorily answer these questions '' (p. 4 3 7). 

 . " Satisfactorily " now stands " to a certain extent." 



Again : — 



" On my view these terms may be used literally ' 

 (pp. 438, 439). 



" On my view " became " according to the views 

 here maintained such language may be/' &c., in 

 1869. 



Again : — 



" I believe all these facts can be explained as follows, 

 on the view of descent with modification" (p. 443). 



This sentence now ends at " follows." 



Again : — 



" Let us take a genus of birds, descended, on my 

 theory, from some one parent species, and of which the 

 several new species have lecome modified through natu- 

 ral selection in accordance with their divers habits " 

 (p. 446). 



The words " on my theory" were cut out in 1869, 

 and the passage now stands, " Let us t^ke a group of 

 birds, descended from some ancient form and modified 

 through natural selection for difierent habits." 



