In Search of the Sophists - SchiappaEdward: Protagoras and Logos: a Study in Greek Philosophy and Rhetoric. (Studies in Rhetoric/Communication.) Pp. xvii + 239. Columbia, South Carolina: University of South Carolina press, 1991. $29.95. De RomillyJacqueline: The Great Sophists in Periclean Athens. Translated by LloydJanet. Pp. xv + 260. Oxford: Clarendon Press, 1992 (originally published in French, 1988), £35.