ro THE ORIGIN OF SPECIES 71 
“- 
‘had been perused by his private friends fifteen or 
‘sixteen years before. Perplexed in what manner 
‘to do full justice both to his friend and to himself, 
‘Mr. Darwin placed the matter in the hands of 
| Dr. Hooker and Sir Charles Lyell, by whose advice 
‘he communicated a brief abstract of his own views 
‘to the Linnzan Society, at the same time that 
‘Mr. Wallace’s paper was read. Of that abstract, 
the work on the “ Origin of Species” is an enlarge- 
‘ment; but a complete dinkemeut oh: Me: Bada 
-doctrine is looked for in the large and well- 
‘illustrated work which he is said to be preparing 
“a  aeeem 
fe _fie Dassinian hypothesis asthe merit of | 
imple _and_comprehensible_in. 
: me z and _its essential positions may be stated 
Gere the deve : all species have been pro- 
+ y the development of varieties from 
common stocks ; by the conversion of these, first 
rmanent_races and then into new species, 
_ by the process of natural selection, which process } 
: is essentially identical with that artifici ion 
by which man has originated the races of domestic 
animals—the struggle for cwistence..takingthe 
place of man, and exerting, in the case of natural 
‘selection, that selective action which he performs 
in artificial selection. 
_ The evidence brought forward by Mr. Darwin in 
support of his hypothesis is of three kinds. First, 
- ae ner 4. 
