1993 0-7734-9284-4 This study examines two aspects of science that have become important in the post-logicist period. It shows how the organization of scientific discourse is more clearly disclosed when we analyze it as a persuasive rhetoric. Logic itself shifts from being taken as a universal grammar to being seen as one among several devices for securing the conviction of one's readers or audiences. Provides a formal characterization of aesthetic criteria, and an awareness of the influence of social factors from outside the scientific community. Explores several ways in which their mutual influence can be identified.