11 SEPTEMBER 1869, Page 23

The Logic of Nantes. By I. P. Hughlings. (Walton.)--We shall

best describe this work by its secondary title, as "Au Introduction to Boole's Laws of Thought." It seeks, in fact, to popularize Professor Boole's system, and, if we may use the expression, accommodate it to what is a common prepossession on the subject, by divesting it of its mathematical dress."' At the same time, it differs from older treatises on logic, by the intro- duction of a physiological element, accounting, for instance, for " sensa- tion," &c. We may say that Mr. Hughlings puts his points clearly enough, without committing ourselves to any opinion that he establishes them as against more commonly received systems of logic.