A. MS. notebook
Published: 5.120-150 (pp. 11-50). Not published is Part I., "How I go to work in studying philosophy" (pp. 1-10), and the contents of pp. 43-47, which constitute a first draft (the published second draft is the versos of these pages) and which concern the obscurity of the relation between the three kinds of inferences and the three categories as well as CSP's attempt to achieve clarity here.
Categories, Inference, Harvard Lectures on Pragmatism, Pragmatism and Pragmaticism