A. MS. notebook
Volume I. Published, in part, as 5.590-604 (pp. 28-92). Unpublished: the division of reasoning into deduction, induction, and abduction as deriving from Aristotle and Boole. The relationship of the three kinds of reasoning to the syllogism. A brief review of CSP's own reflections on the kinds of reasoning, noting articles he published and the errors and confusions these contain.
Abduction, Aristotle, Boole George, Deduction, Induction, Logic (modal see Modality), Lowell Lectures, Reasoning (probable see also Probability), Syllogism
pp. 2-92 (pagination is somewhat irregular but the text is continuous)