1. Pnin (Garden City: Doubleday, 1957), pp. 51-52.
2. "Scenes from the Life of a Double Monster," in Nabokov's Dozen (Garden City: Doubleday, 1958), pp. 167-68. All subsequent references to this edition will appear in the text.
3. Nabokov: His Life in Art (Boston: Little, Brown, 1967), p. 222.
4. Field, pp. 221-22.
5. In Bend Sinister (New York: Henry Holt, 1947), Krug experiences the sense of ... [Show full abstract] being two people—the sufferer and the observer who looks on at the other's suffering—when he learns that his wife's operation has not been successful and that she will soon die. King regards this psychic rift, and the sense of being "double," as an aberration caused by his intense grief. It is "the last stronghold of the dualism he [Krug] abhorred. The square root of I is I," p. 6. For an extensive discussion of the "doubles" question in Nabokov's fiction, see Chapter 5 of my book, Nabokov and the Novel (Cambridge: Harvard University Press, 1980).