1. James Beattie's theory of rhetoric
2. Skopec, Eric Wm. 1977. “Thomas Reid's Lectures on Eloquence”. University of Iowa. Ph.D. diss.
3. Irvine, James R. 1974. “Gerard, Beattie, and Ogilvie: The Evolution of the ‘New’ Rhetoric at Aberdeen”. University of Iowa. Ph.D. diss.