The investigation of language, of how (and what and why) signifiers signify, is prominent in modern critical work, but the questions being asked are by no means new. In Mervelous Signals, Eugene Vance asserts that "there is scarcely a term, practice, or concept in contemporary theory that does not have some rich antecedent in medieval thought." He goes on to illustrate the complexity and depth of medieval speculations about language and literature...