All of the following writers dropped their first names. What were the names that they dropped? (1) Sinclair Lewis; (2) Norman Douglas; (3) Virginia Woolf; (4) Bret Harte; (5) Arnold Bennett; (6) Joyce Kilmer; (7) Vachel Lindsay; (8) Booth Tarkington; (9) Robinson Jeffers; and (10) Woodrow Wilson.

All entries (one per person) must be clearly written on postcards and mailed to: Book Bag, The Washington Post, Washington, D.C. 20071, and must include complete return address and competition number. The winning entry will be the first correct answer drawn at random. Employes of The Washington Post Company and their families are not eligible to enter. Entries must be received no later than July 9th. The winner's name and city of residence will be announced in the July 19th issue of Book World. A Washington Post Book World book bag will be sent to the winner. Answer to Book Bag #423: In this classic drama of murder and deception a man plays detective as he seeks to discover who killed his wife's first husband. He interviews various suspicious characters: his brother-in-law who, he comes to believe, wants him out of the way so he can take his job (an important civic post); a blind man who "sees" more than he lets on; his own wife, who eventually reveals a shameful secret; and finally an old shepherd who provides the final piece to the whole puzzle. As usual in this genre, death and violence attend the solution to the crime. The investigator in this piece is Oedipus, the work Oedipus Rex. Winner: Michael A. Bell, Damascus, Md.