WEBexplained by Poe's aesthetic in which the "Moral Sense," "Con-science," and "Duty" have, at best, "only collateral relations" with the primary concerns: for poetry "The Rhythmical Creation of Beauty,"2 and for prose fiction "the unity of effect or im-1 Edgar Poe: Seer and Craftsman (Deland, Fla.: Everett/Edwards, I972), p. i8i.