A quick search suggests Gardner box 26 folder 8 has the relevant discussion on the chessboard computer. https://oac.cdlib.org/findaid/ark:/13030/kt6s20356s/entire_text/ -- Stephen Lucas, Professor Department of Mathematics and Statistics MSC 1911, James Madison University, Harrisonburg, VA 22807 USA Phone 540 568 5104, Fax 540 568 6857, Web http://educ.jmu.edu/~lucassk/ Email lucassk at jmu dot edu (Work) stephen.k.lucas at gmail dot com (Other) Mathematics is like checkers in being suitable for the young, not too difficult, amusing, and without peril to the state. (Plato) On Jun 11, 2018, at 1:26 AM, Thane Plambeck <tplambeck@gmail.com<mailto:tplambeck@gmail.com>> wrote: Stan Isaacs (cc'ed) would probably know if some portion of Martin Gardner's personal library is included in the corpus of material that Stanford has related to Gardner. https://urldefense.proofpoint.com/v2/url?u=https-3A__searchworks.stanford.ed... On Sun, Jun 10, 2018 at 9:40 PM James Propp <jamespropp@gmail.com<mailto:jamespropp@gmail.com>> wrote: Thanks! The Wikipedia page for Craige gives no death date, but uses the past tense in describing his residency in Portland, Maine. I’ll write to Knuth to see if he has a copy of “The Two Dimensional Abacus”. Does anyone know what happened to Martin Gardner’s books? Ideally they would all be kept together in the form of a library (specifically, an approximation to The Library of All Books Mentioned In Martin Gardner’s Writings), which could be useful to various sorts of scholars, particularly in the case of obscure books. (Cf. the Eugene Strens Collection at Calgary.) Jim Propp On Sunday, June 10, 2018, Hans Havermann <gladhobo@bell.net<mailto:gladhobo@bell.net>> wrote: I wonder whether the only extant account of Schensted's device is in Gardner's files of correspondence. Apparently Craige Eugene Schensted (later, "Ea Ea") and his wife Irene Verona published "The Two Dimensional Abacus" in 1974. Good luck finding a copy. I wonder if this is arose somehow from Jean Van Arsdel and Joanne Lasky's article "A two-dimensional abacus - the Papy Minicomputer" in The Arithmetic Teacher, October 1972: https://urldefense.proofpoint.com/v2/url?u=https-3A__www.jstor.org_stable_41... Both Craige and Irene were born in 1927. Not sure what his status is but she died a few months ago. _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com<mailto:math-fun@mailman.xmission.com> https://urldefense.proofpoint.com/v2/url?u=https-3A__mailman.xmission.com_cg... _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com<mailto:math-fun@mailman.xmission.com> https://urldefense.proofpoint.com/v2/url?u=https-3A__mailman.xmission.com_cg... -- Thane Plambeck tplambeck@gmail.com<mailto:tplambeck@gmail.com> https://urldefense.proofpoint.com/v2/url?u=http-3A__counterwave.com_&d=DwIGa... _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com<mailto:math-fun@mailman.xmission.com> https://urldefense.proofpoint.com/v2/url?u=https-3A__mailman.xmission.com_cg...