Copyright 1941
Columbia University Press, New York
Foreign agents: Oxford University Press, Humphrey Milford;
Amen House, London, E.C. 4, England, and B. I. Building,
Nicol Road, Bombay, India; Maruzen Company, Ltd.,
6 Nihonbashi, Tori-Nichome, Tokyo, Japan
MANUFACTURED IN THE UNITED STATES OF AMERICA
