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Calculus Made Easy Being A Very-Simplest Introduction To Those Beautiful Methods Of Reckoning Which Are Generally Called By The Terrifying Names Of The Differential Calculus An... »
The Snark Puzzle Book Seventy-five brain teasers relating to Lewis Carroll's nonsense poem The Hunting of the Snark.. »
Mathematics, Magic And Mystery Challenging mathematical puzzles and tricks that may be played with cards, common objects, special equipment, drawings, and pure numbers. »