From the Robin Catalogue:
A. MS., G-1901-4, 221 pp., fragmentary, with pp. running as high as p. 238. Published, in part, as 7.220n18 (pp. 93-95, with one deletion). CSP added following note: “These pages are to be used in the chapter of the Logic treating Deductive Reasoning. But the theory needs completion.” See MS. 1344 for what appears to be an abstract of this logic.
Published, in part, as NEM 4:1-12.