340 INDUCTION. 



What more may usefully be said oil the subject of Colliga- 

 tion, or of the correlative expression invented by Dr. Whewell, 

 the Explication of Conceptions, and generally on the subject 

 of ideas and mental representations as connected with the study 

 of facts, will find a more appropriate place in the Fourth Book, 

 on the Operations Subsidiary to Induction : to which I must 

 refer the reader for the removal of any difficulty which the 

 present discussion may have left. 



