MENTAL HYGIENE.

OR,

AN EXAMINATION

OF THE

INTELLECT AND PASSIONS.

DESIGNED TO SHOW

HOW THEY AFFECT AND ARE AFFECTED BY

THE BODILY FUNCTIONS,

AND THEIR

INFLUENCE ON HEALTH AND LONGEVITY.

BY

WILLIAM SWEETSER, M. D.,

PROFESSOR OF THE THEORY AND PRACTICE OF MEDICINE IN BOWDOIN, CASTLETON,
AND GENEVA MEDICAL COLLEGES, AND FELLOW OF THE AMERICAN

ACADEMY OF ARTS AND SCIENCES.

SECOND EDITION, RE-WRITTEN AND ENLARGED.

NEW-YORK:
GEORGE P. PUTNAM, 155 BROADWAY.

1850.