Excerpt from The Elements of Logic: Theoretical and PracticalSpecial acknowledgments are due to Mr. Fowler and Mr. Venn for' the valuable help which I have received from their works on Logic. Mr. Venn's recent volume on Empirical Logic is unusually sagacious and suggestive in all the most fundamental matters. Jevons receives due acknowledgment in the extent to which I have modelled my work after his.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.