INDUSTRIAL CAUSES

OF

CONGESTION  OF POPULATION IN
NEW YORK CITY
 

EDWARD EWING PRATT,

Assistant Professor of Bconomict and Statistics
New York School of Philanthropy
 

SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMKN'IS

TOR THE DEGREE OF DOCTOR OF PHILOSOPHY

IN THE

Faculty of Political Science
Columbia University
 

NEW YORK
I91I