REVOLUTIONARY RADICALISM : ITS HISTORY, PURPOSE AND TACTICS, WITH AN EXPOSITION AND DISCUSSION OF THE STEPS BEING TAKEN AND REQUIRED TO CURB IT 1920
THE GROUP MIND : A SKETCH OF THE PRINCIPLES OF COLLECTIVE PSYCHOLOGY WITH SOME ATTEMPT TO APPLY THEM TO THE INTERPRETATION OF NATIONAL LIFE AND CHARACTER WILLIAM MCDOUGALL 1920
THE CRAFT SINISTER; A DIPLOMATICO–POLITICAL HISTORY OF THE GREAT WAR AND ITS CAUSES… GEORGE ABEL SCHREINER 1920
SPIRITUALISM AND THE NEW PSYCHOLOGY, AN EXPLANATION OF SPIRITUALIST PHENOMENA AND BELIEFS IN TERMS OF MODERN KNOWLEDGE MILLAIS CULPIN 1920
EARTH NOT A GLOBE; SCIENTIFICALLY, GEOMETRICALLY, PHILOSOPHICALLY DEMONSTRATED REV. HENRY J. GOUDEY 1920
