Dr. Haven's Valuable Series of School and
College Text-Books.
MENTAL PHILOSOPHY $2.00
MORAL PHILOSOPHY 1.75
HISTORY OF ANCIENT AND MODERN PHILOSOPHY. (In press).
Entered according to Act of Congress, in the year 1857, by
GOULD AND LINCOLN,
In the Clerk's office of the District Court Of the District of Massachusetts.
PREFACE.
If any apology were necessary for adding yet another to the numerous works on Mental Philosophy which have recently appeared, the circumstances that led to the preparation of the present volume may, perhaps, constitute that apology.