46 THE METHOD OF DARWIN. 



was excluded and the other adopted. And the 

 one that was accepted was based, not on direct 

 proof, but on one of the most magnificent series 

 of deductions that the world has ever seen. 



The further discussion of this subject will 

 be deferred for the present. In the following 

 chapters Darwin's method of treating the prob- 

 lems that presented themselves to his mind 

 will be analyzed in some detail, and the clos- 

 ing chapter will deal with the logical history 

 of the principle of natural selection. 



