心

THE

SOCIAL SYSTEM:

A TREATISE

ON

THE PRINCIPLE OF EXCHANGE.

BY JOHN GRAY.

The Economist is not to frame systems and devise schemes for increasing the
wealth and enjoyments of particular classes, but to apply himself to discover the
sources of national wealth and universal prosperity.—M'CULLOCH.

EDINBURGH:

WILLIAM TAIT, PRINCE STREET:

LONGMAN, REES, ORME, BROWN, & GREEN, LONDON: AND

W. CURRY, JUN. & CO. DUBLIN.

MDCCCXXXI.

H

ΤΟ

THOSE WHO CAN DISTINGUISH

TRUTH AND JUSTICE

FROM

RECEIVED OPINION AND ESTABLISHED CUSTOM;

AND WHO ARE WILLING

TO ASSIST IN THE ESTABLISHMENT OF SUCH PRINCIPLES

AS ARE BEST CALCULATED TO

ADVANCE THE CHARACTER AND IMPROVE THE CONDITION

OF

THE WHOLE HUMAN RACE,

THIS VOLUME

IS MOST RESPECTFULLY INSCRIBED.