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Answer to No. 8

Take a round cylinder of the diameter of the circular hole, and of the height of the square hole. Having drawn a straight line across the end, dividing it into two equal parts, cut an equal section from either side to the edge of the circular base, a figure like that represented by the woodcut in the margin would then be produced, which would fulfil the required conditions. 9. ANSWER TO THE NUNS' PUZZLE. 10. THE DOGS' PUZZLE ANSWERED, SEE DOTTED LINES 11. ANSWER TO CUTTING OUT A CROSS PUZZLE.

Take a piece of writing paper about three times as long as it is broad, say six inches long and two wide. Fold the upper corner down, as shown in Fig. 1; then fold the other upper corner over the first, and it will appear as in Fig. 2; you next fold the paper in half lengthwise, and it will appear as in Fig. 3. Then the last fold is made lengthwise also, in the middle of the paper, and it will exhibit the form of Fig. 4, which, when cut through with the scissors in the direction of the dotted line, will give all the forms mentioned. 12. ANSWER TO ANOTHER CROSS PUZZLE. 13. ANSWER TO THE FOUNTAIN PUZZLE. 14. ANSWER TO THE CABINET-MAKERS' PUZZLE.