This article excavates how style in writing was represented and taught in the under-investigated mid-twentieth century. I trace four editions of the textbook "Modern Rhetoric" (1949-1979), authored by Cleanth Brooks and Robert Penn Warren; I detail how the book was surprisingly innovative for the time, despite its eventual re-entrenchment to a more conservative approach. I argue that the teaching of style serves as a marker of the tensions between disciplines and pedagogical approaches, changing views of students, and competing cultural demands. (Contains 18 notes and 2 tables.)