Mathematical recreations and essays
Arithmetical recreations.--Geometrical recreations.--Mechanical recreations.--Chessboard recreations.--Magic squares.--Unicursal problems.--Kirkman's school-girls problem.--Miscellaneous problems.--The mathematical tripos.--Three classical geometrical problems.--The parallel postulate.--Insolubility of the algebraic quintic.--Mersenne's numbers.--String figures.--Astrology.--Cryptographs and ciphers.--Hyper-space.--Time and its measurement.--Matter and ether theories Advertising matter: p. 493-506 Includes bibliographical references
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