THE VARIOUS THEORIES

OF THE RELATION OF

MIND AND BRAIN

REVIEWED.

BY

GEORGE DUNCAN,

Author of "Iconology," "Marston Brothers," &c., &c.

"Men are governed by custom; not one of a thousand thinks for himself;
and the few who are emancipated dare not act up to their freedom for fear of
being thought whimsical."-Lord Kames.

THEC

LONDON:

TRÜBNER & CO., 60 PATERNOSTER ROW.
1869.

265. K. bb.

ΤΟ

GEORGE HENRY LEWES

THIS LITTLE TREATISE

IS RESPECTFULLY

DEDICATED

BY AN ADMIRER OF HIS

WRITINGS.

1

PREFACE.

THE following short treatise was originally delivered in the form of two lectures to the "Glasgow Psychological Society." It is a work, therefore, more suggestive than exhaustive-its principal aim being to show the insufficiency of any physiological theory to explain the co-relation of mind and brain. This is a subject of vast importance, and ought to be studied. calmly, earnestly, and perseveringly, unhampered by any preconceptions.

I need scarcely add that the subject is as difficult as it is vastis even mysterious at every stepand has puzzled the greatest minds in all ages; yet let us hope that it is not insolvable, but that ere long we shall be able to explain in a satisfactory manner the various phases of mental phenomena, and their material correlate, if such relation there is.

194 EGLINTON STREET, GLASGOW.

GEORGE DUNCAN.