Book excerpt: Typescripts, essays, and an authoritative edition of Knowing and the Known, Dewey's collaborative work with Arthur F. Bentley. In an illuminating Introduction T. Z. Lavine defines the collaboration's three goals--the "construction of a new language for behavioral inquiry," "a critique of formal logicians, in defense of Dewey's Logic, " and "a critique of logical positivism." In Dewey's words: "Largely due to Bentley, I've finally got the nerve inside of me to do what I should have done years ago." "What Is It to Be a Linguistic Sign or Name?" and "Values, Valuations, and Social Facts, ' both written in 1945, are published here for the first time.