The eighth volume of this series stresses the application of scientific data to the solution of social problems. Glueck pleads for a more intelligent treatment of criminals. Sir Norman Angell thinks the fundamental issues of the peace problem simple, but fears they will be overlooked. Hume discusses the part medicine plays in war. Alexander shows how aggressiveness may be directed to maintain peace. Myrtle McGraw makes optimistic applications of her knowledge of babies to the progress of society. Robert Williams draws on scientific data to plead for coöperative individualism versus totalitarianism.

Much of the language is still over the heads of most of the laity.