Knight, Damon. "Masks." Playboy July 1968. Rpt. with Knight's annotations, Those Who Can . . . . Robin Scott Wilson, ed. New York: NAL, 1973. Also rpt. As Tomorrow Becomes Today (q.v. under Anthologies and Collections).
Important story detailing the antiorganic psychological effects of total replacement of a man's body with mechanical devices. Discussed in Andrew Gordon's essay in The Mechanical God.