Hoffmann, Professor, 1839-1919 · London : Frederick Warne · leaf 52
is another ingenious application of the same principle. Itconsists of a little iron wheel, with six spokes, and a hole inthe centre (see Fig. 41). A double cord, about twenty inchesin total length, is looped over one of the spokes, then lacedin and out between the remaining spokes, and finally… … Fig. 41. The puzzle is to detach the cord and pen from the wheel■without unfastening the knot. No. XVI.—The Balls and Rings. We have here a flat mahogany ring, 3| inches in diameter,and \ inch thick, in appearance not unlike a miniature life-buoy. In this are a number of holes, through which passes
Puzzles
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