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INDUCTION. 



sciences of mere observation and sciences of experimentation, 

 and the extreme disadvantage under which directly inductive 

 inquiry is necessarily carried on in the former, were the best 

 preparation for discussing the methods of direct induction ; a 

 preparation rendering superfluous much that must otherwise 

 have been introduced, with some inconvenience, into the heart 

 of that discussion. To the consideration of these methods we 

 now proceed. 



