This is an authorized facsimile
of the original book, printed by
microfilm-xerography on acid-free paper.

UNIVERSITY MICROFILMS INTERNATIONAL
Ann Arbor, Michigan, U.S.A.

London, England

1981

Submitted in partial fulfillment of the requirements for the
degree of Doctor of Philosophy, in the Faculty
of Philosophy, Columbia University

1922
NEW YORK, N. Y.