By Henry E. Dudeney
In issuing this quantity of my Mathematical Puzzles, of which a few have seemed in periodicals and others are given right here for the 1st time, i have to recognize the encouragement that i've got obtained from many unknown correspondents, at domestic and in a foreign country, who've expressed a wish to have the issues in a gathered shape, with the various strategies given at better size than is feasible in magazines and newspapers. even though i've got integrated a number of outdated puzzles that experience the realm for generations, the place I felt that there has been anything new to be acknowledged approximately them, the issues are frequently unique. it's real that a few of these became widely recognized in the course of the press, and it's attainable that the reader could be completely satisfied to grasp their source.
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Amusements in Mathematics Dudeney by Henry E. Dudeney