First jump from stool 2, then from 5, 3, 6, 7, 1, 3, and 6 in turn to the vacant stools.
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No. LV
This diagram shows that the seven wheels, which spin so merrily when the paper is rotated in the hand, can be divided off into separate enclosures by only three straight lines—
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No. LVI
The diagram below shows how the market-gardener, keeping one-fourth of his square field for himself in the shape of a triangle, was able to divide the remainder so that each of his four sons had an equal portion of similar shape—
