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  1. Mathematical recreations and essays,
    By: Ball, W. W. Rouse
    Edition: 10th ed.
    Publication info: London,Macmillan,1922.
    Contributed by: Cornell University Library
    Subjects: Bees  Ciphers  Cryptography  Famous problems  Geometry  Magic squares  Mathematical recreations  String figures  
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  2. The seven follies of science; to which is added a small budget of interesting paradoxes, illusions, marvels, and popular fallacies. A popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. With numerous illustrations,
    By: Phin, John,
    Edition: 3d ed., greatly enl
    Publication info: New York,D. Van Nostrand company,1912
    Contributed by: University of California Libraries (archive.org)
    Subjects: Famous problems  Geometry  Popular works  Science  Scientific recreations  
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