Among the group of thinkers who gathered at the University of Chicago at the turn of the century and who soon came to be known as "the Chicago School," George Herbert Mead, after John Dewey, stands out most prominently. Though omitted from the list of the "canonical six" who make up "classic American" philosophy,¹ and excluded even from scholarly studies of American pragmatic thought,² Mead is widely recognized as the thinker who, next to Dewey, contributed most to the development of pragmatism during the period immediately after the first World War. Curiously Mead, like Peirce before him, accomplished his unique contribution on the basis of scanty publications for a restricted audience, since, during his life, he published articles destined solely for a small group of professional readers. But he lectured, and his lectures both in his classes and before the American Philosophical Association added to his influence upon the subsequent history of ideas in America. Mead's achievement, while apparent in those writings published during his life, is further evident in all its scope and depth in the four posthumously published books based upon his lectures and papers: I) his Carus lectures published as The Philosophy of the Present,³ 2) notes from his lectures in his course in Social Psychology published as Mind, Self and Society,¹ 3) notes from his lectures in his course in "Movements of Thought in the Nineteenth Century" published under the same title,² and 4) unpublished papers, supplemented by notes from lectures, published as The Philosophy of Act.³