DEVELOPMENT OF

SOCIAL THEORY

THE CENTURY SOCIAL SCIENCE SERIES

EDITED BY

EDWARD ALSWORTH ROSS
University of Wisconsin

*PRINCIPLES OF SOCIOLOGY, By EDWARD A. Ross, University of Wisconsin.

*FIELD WORK AND SOCIAL RESEARCH, By F. STUART CHAPIN, University of Minnesota.

*POVERTY AND DEPENDENCY, By JOHN L. GILLIN, University of Wisconsin.

*ORGANIZING THE COMMUNITY, By BESSIE A. MCCLenaHAN, School of Social Science, St. Louis, Mo.

*EDUCATIONAL SOCIOLOGY, By DAVID SNEDDEN, Columbia University.

*SOCIOLOGY FOR TEACHERS, By DAVID SNEDDEN, Columbia
University.

EDUCATIONAL APPLICATIONS OF SOCIOLOGY, By
David Snedden, Columbia University.

"THE DEVELOPMENT OF SOCIAL THEORY, By J. P.
LICHTENBERGER, University of Pennsylvania.

*FUNDAMENTALS OF SOCIAL PSYCHOLOGY, By EMORY
S. BOGARDUS, University of Southern California.
*OUTLINES OF SOCIOLOGY, By EDWARD A. Ross, University
of Wisconsin.

PRINCIPLES OF CHILD WELFARE, By EMMA O. LUNDBERG
and KATHERINE F. LENROOT, both of the United States
Department of Labor, Children's Bureau.

LABOR PROBLEMS, By H. A. MILLIS, University of Chicago.
COMMUNITY PROBLEMS, By A. E. WOOD, University of
Michigan.

AN OUTLINE OF THE THEORY OF SOCIAL EVOLU-
TION, By F. STUART CHAPIN, University of Minnesota.
ORGANIZATION AND ADMINISTRATION OF COM-

MUNITY SOCIAL WORK AGENCIES, By R. J. COL-
BERT, Formerly at Tulane University.

SOCIAL STATISTICS, By G. R. Davies, University of North

Dakota.

CRIMINOLOGY, By JOHN L. GILLIN, University of Wis-
consin.

URBAN SOCIOLOGY, By HoWARD WOOLSTON, University of
Washington.

CONTEMPORARY SOCIAL THEORY, By HARRY E. BARNES,
Smith College.

RURAL SOCIOLOGY, By GEORGE H. VON TUNGELN, Iowa
State College.

PROBLEMS OF THE FAMILY, By WILLYSTINE GOODSELL,
Columbia University.

SEX SOCIOLOGY, By EDWARD A. Ross, University of Wis-
consin, and JANE I. NEWELL, Wellesley College.

• Published.

1

DEVELOPMENT OF
SOCIAL THEORY

BY

JAMES P. LICHTENBERGER, PH.D.
Professor of Sociology, University of Pennsylvania
AUTHOR OF "DIVORCE, A STUDY IN SOCIAL CAUSATION"

NEW YORK & LONDON
THE CENTURY CO.

Το

FRANKLIN HENRY GIDDINGS