Abstract
Abstract The study of theories of actio is a basic part of Rhetoric which ought not to be neglected, especially when one is considering practical rather than literary rhetoric. The present study deals with neo-Latin ecclesiastical rhetoric and points out the differences between protestant and catholic notions about the phenomenon of preaching. The presence or absence of indications of actio permits a clear distinction among tendencies in neo-Latin theory. There is such a thing as actioin the Catholic sense, but not in the Protestant. Among catholic scholars, Fr. Luis de Granada stands out for his doctrinal focus and for the quantity of his reflections on this subject.