What was published (2.391-426) is "Upon Logical Comprehension and Extension" of Proceedings of the American Academy of Arts and Sciences, Vol. 7, November 3, 1867, with the revisions of c.1870 and 1893. What was published as 2.427-430 is a supplement entitled "Terminology" (G-1893-7). In addition to being Chapter XV of the Grand Logic, this manuscript was also intended as Essay III of the Search for a Method (1893).
Breadth, Comprehension, logical (see also Connotation), Depth and breadth, Extension logical, Logic (modal see Modality), Methodology, The "Grand Logic" ("How to Reason: A Critic of Arguments'), Terminology