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THE STUDY OF MENTAL SCIENCE

VEG

MENTAL SCIENCE

POPULAR LECTURES ON THE USES

AND CHARACTERISTICS OF LOGIC

AND PSYCHOLOGY

BY

J. BROUGH, LL.D.

PROFESSOR OF LOGIC AND PHILOSOPHY AT THE UNIVERSITY COLLEGE

OF WALES, ABERYSTWYTH

LONGMANS, GREEN, AND CO.

39 PATERNOSTER ROW, LONDON

NEW YORK AND BOMBAY

1903

All rights reserved