Robin Catalogue:
A. MS., n.p., [early 1912], 8 pp., with 3 rejected pages; plus 1 folded sheet (“rules for addition and subtraction”).
Notational explanation and accompanying...

Robin Catalogue:
A. MS., n.p., n.d., pp. 6-7.
Second definition of “ordinals,” and first and second ordinal definition of “addition.” Also multitudinal definition of “addition...

Robin Catalogue:
A. MS., n.p., [C.1881?], 4 pp.
Fifteen axioms (or assumptions) of arithmetic which provide a definition of “positive, discrete number” and from which, CSP...

From the Robin Catalogue:
A. MS., G-1897-1, pp. 1-82, with rejected or alternative pages running brokenly from p. 7 to p. 71.
Most of manuscript was published (4.170-...