DEFINITION AND PROVINCE OF LOGIC. [f 



ever this method is insufRcient to attain the end of its inquiries, it must 

 proceed, like other sciences, by means of evidence. Now, the moment 

 this science begins to draw inferences from evidence, logic becomes 

 the sovereign judge whether its inferences are well-gi'ounded, or what 

 other inferences would be so. 



This influence, however, of logic over the questions which have 

 divided philosophers in the higher regions of metaphysics, is indirect 

 and remote ; and I can conscientiously affirm, that no one proposition 

 laid do-\vn in this work has been adopted for the sake of establishing, 

 or with any reference to its fitness for being employed in establishing, 

 preconceived opinions in any department of knowledge or of inquiry 

 on which the speculative world is still undecided. 

 B 



