Rationale for two card "tricks" [The First (?) and Second Curiosities]. Abstract real (not imaginary) numbers viewed pragmatistically. Cantorian system. Cyclical system of numbers. The Fourth Curiosity. Secundal arithmetic. Reference to Elements of Mathematics (MS. 165), with bitter note on publishers of textbooks.
Cantor Georg, Curiosities (see also Mathematical recreations), Mathematics, recreations of Mathematics, real notation and analysis, "Amazes (Amazements) of Mathematics"', Secundal system of enumeration
210 pp., most of which are numbered with the numbered pages running as high as p. 164 (many pages missing, however)