PREFACE. V 



Logic directly opposed to the views upon which the entire argu- 

 ment and procedure of his work rested. While he believed those 

 opinions to be erroneous, he was conscious that his own views 

 might insensibly be warped by an influence of another kind. He 

 felt in an especial manner the danger of that intellectual bias which 

 long attention to a particular aspect of truth tends to produce. 

 But he trusts that out of this conflict of opinions the same truth 

 will but emerge the more free from any personal admixture ; that 

 its different parts will be seen in their just proportion ; and that 

 none of them will eventually be too highly valued or too lightly 

 regarded because of the prejudices which may attach to the 

 mere form of its exposition. 



To his valued friend, the Rev. George Stephens Dickson, 

 of Lincoln, the Author desires to record his obligations for much 

 kind assistance in the revision of this work, and for some impor- 

 tant suggestions. 



5, GRENVILLE-PLACE, CORK, 

 Nov. 30M, 1853. 



