A scrap-book of elementary mathematics; notes, recreations, essays (1908)
White, William Frank, 1871- · Chicago, The Open Court Pub. Co · leaf 179
BRIDGES AND ISLES, FIGURE TRACING, UNICURSAL SIGNATURES, LABYRINTHS. This section presents a few of the more elementary results of the application of mathematical methods to these interesting puzzle questions.* … Fig. 34- The city of Konigsberg is near the mouth of the Pregel river, which has at that point an island called Kneiphof. The situation of the seven bridges is shown in Fig. 34. A discussion arose as to whether it is * For more extended discussion, and for proofs of the theo- rems here stated, see…
Mathematical recreations
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