During the three years embraced by Volume 7, Dewey published twenty articles and reviews, one of the articles of monograph-length, "e;The Psychology of Social Behavior,"e; one small book, Interest and Effort in Education, and sev-enty encyclopedia articles. A salient and arresting feature of the essays is the continuing polemic be-tween Dewey and some of his critics. Ralph Ross, whose perceptive Introduc-tion to the volume provides a broad per-spective of the various philosophical controversies in which Dewey was en-gaged, comments that "e;when Dewey was pitting himself against important adversaries, his talents as a critic were fully evident."e;