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The boy's own book; a complete encylopedia of all the diversion, athletic, scientific and recreative, of boyhood and youth. (1834)

Clarke, William, 1800-1838, McManus-Young Collection (Library of Congress) · Boston, Munroe and Francis; New York, C. S. Francis, 1834. · leaf 226

An illustration from The boy's own book; a complete encylopedia of all the diversion, athletic, scientific and recreative, of boyhood and youth., 1834, leaf 226
222 PARADOXES AND PUZZLES. THE SQUARES OF TRIANGLES. Cut twenty triangles out of a square bit of wood, as marked m the en- graving, mix them up together, and bid any person make an exact square of them. The key to this puzzle may be acquir- … > - are smooth and regular; for if any of them are notched, or wavy, so as to tally with each other, they may, of course, with little difficulty, be put together. Many other Puzzles, similar to the Square of Triangles, may, with a lit- tle ingenuity, be constructed, in such a manner as to afford…

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