MY object in the present work is to develop and elucidate the non-syllogistic principle on which my Logic was founded. In order to make the central idea clear, I have permitted myself Some detailed criticism of other writers, While I have abstained from complicated systematic construction. Still following Mr. Bradley, and in?uenced further by Mr. Joseph, especially in the distinction between Syllogism and Deduction, I have laid even more stress than before on the principle of coherence, and have insisted on implication as a term free from reference to reasoning in its traditional shapes. I have thus been able, as I hope, to do much more justice to Mr. Bradley's positive account of inference than was done in my former work.