Sketch of a course of half-hour lectures (followed by conversation). The three basic kinds of reasoning: deduction, induction, and retroduction. The justification of reasoning.
Deduction, Entretiens, Ghosts, Induction, Reasoning (probable see also Probability), Religion, Retroductions (see also Abduction), Spiritualism
pp. 1-11, with rejected pp. 1, 4 plus 1 p. ("Entretien1")