REVISED EDITION

MABEL A. ELLIOTT, Ph.D.
Associate professor of Sociology
University of Kansas

and

FRANCIS E. MERRILL, Ph.D.
Assistant Professor of Sociology
Dartmouth College

HARPER & BROTHERS PUBLISHERS
Copyright, 1934, 1941, by Harper & Brothers

I am in the process of scanning this book for the web.
I have begun with what I feel is of the greatest importance.
The rest will be done as time permits.

In addition to being incomplete, there are many OCR errors yet to be corrected.
I apologize for any inconvenience this may cause.