1 understand. These belong to metaphysical and to scholastic logic. The system which this work professes to teach is the logic of common sense. That this system is adapted to the spirit of the age, and that the mode of illustration I have adopted is not unsuitable to the subject, seems abundantly shown by the rapid sale of the first edition, and the strong commendations of many of our organs of criticism. It is very gratifying to observe that the first attempt to place before the million in a simple form the principles of an art hitherto confined to the educated classes should at once have received the approbation of the public, and of so large a number of literary men. THE AUTHOR. LONDON, Oct. 1, 1851. The first and second editions of this work were published" by a Fellow of the Royal Society.". The Author has now prefixed his name. LONDON, May 1, 1852. J. W. G. This Edition differs from the last only in having an Appendix on the Philosophy of Language. LONDON, Jan. 1, 1854. J. W. G. No alteration has been made in this Edition, and it is not the Author's intention to make any in the future Editions. LONDON, July 1, 1857. J. W. G. CONTENTS. THE INTRODUCTION TO REASONING. I.-The name and nature of the Art of Reasoning. II. The subjects of the Art of Reasoning. III-The utility of the Art of Reasoning I-The relation of a Subject and its Attributes II. The relation of a Whole and its Parts III. The relation of Genus and Species IV. The relation of Cause and Effect-Physical Causes V.-The relation of Cause and Effect-Moral Causes I.-The application of the Art of Reasoning to the ordinary IV. The application of the Art of Reasoning to Statistics You are informed, gentle Reader, that this book is written upon the Art of Reasoning, and is divided into Five Parts. The First Part treats of the INTRODUCTION TO REASONING; the Second and Third Parts treat of the PRINCIPLES OF REASONING; the Fourth Part treats of the FORMS OF Ir seems proper that before we attempt to reason, we B |