Literature's dependence on a few folktale plots is a cliche, and the significance of structuralist theory cannot have escaped many scholars, so Rosenberg's insistence on the interrelation of folklore and literature is nothing new. He surveys the foundational work of Aarne, Thompson, and Propp and the oral-formulaic theories of Parry and Lord, but the references are too elliptical to be clear to nonspecialists, while explanations of methodology will...