Hoffmann, Professor, 1839-1919 · London : Frederick Warne · leaf 114
eries. ; It should be mentioned that in addition to the various figuresresulting from the re-arrangement of the segments of a singlepuzzle of this series, there are many others which may beproduced by the combination of the segments of a given pairof puzzles. For these, however, we must refer the… … Fig. 16S. Required, so to combine these twelve pieces as to form aperfect square. No. VIII.—The Extended Square. Required, so to cut a cardboard square, as a in the dia-gram (Fig. 169), into two portions, in such manner that by
Puzzles
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