One of the most striking characteristics of society today is the marvelous development that is everywhere manifest along industrial lines. In nearly every department of industry the simple processes which formerly prevailed have become differentiated into a great variety of activities, and all have been organized into a definite system. Methods of exploiting the earth in search for raw materials, processes of manufacture, and modes of distribution and exchange have become wonderfully complex. The influence of this change is far-reaching. It permeates every phase of life. It operates in the church as well as in the state, in the home as well as in the school.