For decades, Elisabeth Ladenson says, critics have misread or ignored a crucial element in Marcel Proust's fiction--his representation of lesbians. Her challenging new book definitively establishes the centrality of lesbianism as sexual obsession and aesthetic model in Proust's vast novel A la recherche du temps perdu . Traditional readings of the Recherche have dismissed Proust's "Gomorrah"--his term for women who love other women--as a veiled portrayal...