By 1907, the first of the three years em-braced by Volume 4, Dewey had aban-doned thoughts of a possible career in the administration of higher education and was firmly established as a leading member of the Department of Phi-losophy at Columbia. As Lewis Hahn points out in his Introduction, these were "very productive years for Dewey. In addition to numerous lectures and speaking engagements and participa-tion in professional meetings, he pub-lished...