In Its Social and Economic Aspects

BY

FRANK F. ROSENBLATT, A. M.

PART I

SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS

FOR THE DEGREE OF DOCTOR OF PHILOSOPHY

IN THE
FACULTY OF POLITICAL SCIENCE

COLUMBIA UNIVERSITY

NEW YORK

COPYRIGHT, 1916

BY
FRANK F. ROSENBLATT

To
KATHERINE GOLDING ROSENBLATT
IN APPRECIATION OF TRUE COMRADESHIP

THIS WORK IS DEDICATED