232 THE METHOD OF DARWIN. 



The processes employed in scientific inves- 

 tigations, although some of them have been 

 treated in separate chapters, have a vital inter- 

 dependence. Darwin did not and could not use 

 one process until its resources were exhausted, 

 and then turn to another. It was the very 

 swiftness with which different processes were 

 successively brought to bear upon his problems 

 that made it possible to digest so thoroughly 

 every set of facts with which he dealt. What- 

 ever may be the future of the particular con- 

 clusions which Charles Darwin reached, the 

 general method which he employed and the 

 general drift of his conclusions will have a 

 permanent value. All his efforts tended toward 

 the unification of knowledge. All his induc- 

 tions became corollaries of one great theory; 

 all his deductions had to do with efforts "to 

 test and prove the truth of that theory. The 

 subordination of all the devices of the intellect 

 to one great comprehensive purpose has given 

 a unity of aim to all the great works of his life, 

 has made his general method conspicuously 

 lucid, and has knit the products of his intellect 

 into one great logical whole. 



THE END. 



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