Robin Catalogue:
A. MS., notebook, n.p., 1903, pp. 1-26.
Improvement in reasoning requires, first of all, a study of deduction. For this, an unambiguous and simple system of...
A. MS., n.p., [c.1903?], pp. s-2, incomplete.
Intended as the first of a series of four memoirs, with plans for further memoirs on the application of mathematical theory to deductive logic....
From the Robin Catalogue:
A. MS., G-1905-1e, pp. 1-65; 33-40; 38-41; 37-38; 40-43.7; plus 64 pp. of fragments running brokenly from p. 1 to p. 60.
This was to have...
