AUTHOR OF

"THE METAPHYSICS OF NATURE"

"NATURAL AND SOCIAL MORALS"

ETC.


FOURTH EDITION

ENLARGED, AND PARTLY REWRITTEN


SIMPKIN, MARSHALL, HAMILTON, KENT & CO. LTD.,
4 STATIONERS' HALL COURT.
LONDON, E.C.4





PREFACE


In this edition of my _Logic_, the text has been revised throughout,
several passages have been rewritten, and some sections added. The chief
alterations and additions occur in cc. i., v., ix., xiii., xvi., xvii.,
xx.