We have long sought a presentation which would give teachers and other daily workers with mind a simple general view of mental life in its fundamental working aspects. We have been fortunate enough to find the exposition required, and it is offered in this monograph.

We are confident of the influence it will have upon the American public who read books on psychology. We are especially glad to offer this statement of the theory of the developing mind in a series intended for teachers because of the particular form of argument which the author has utilized to express his views. It meets with beneficent directness most of the fundamental doubts and controversies which have enmeshed the teaching profession for a quarter of a century.