LOGIC (MS 339-1009)
Only the 1st paragraph of p. 1 was published: Collected Papers, Vol. 8, p. 278. Unpublished: a general summary of CSP's work in philosophy and logic, along with a short account of the significance of his efforts in logic, and a discussion of continuity as ubiquitous mediation.
Continuity, Logic (modal see Modality), The "Grand Logic" ("How to Reason: A Critic of Arguments')
LOGIC / GRAND LOGIC 1893
Six pages (pp. 7-12) added from MS. 950