SOLUTION TO MARINER'S PUZZLE.
Divide the piece of plank described in the Mariner's Puzzle, published in No. 47, into five squares, as represented in Fig. 1; then draw a line from A to B, and from B to C. Cut off the two triangular pieces marked X X, and re-arrange them as represented in Fig. 2, and you will have a piece of plank of the shape and size required by the mariner to stop the leak in his ship.
Fig. 2.
IMITATION SCREW-HEADS.
BY F. BELLEW.
Fig. 1.
Here is a simple little thing of my own invention, from which I have derived a good deal of fun from time to time, and from which the readers of Young People may extract some amusement. It is an imitation of the common screw-head, and is made in this wise: Take a piece of common tin-foil, and mark on it with a pair of compasses or a small thimble a number of circles; then, with a broad pen or small brush and black ink, rule across each a broad line, as represented in Fig. 1. Then, when your ink is dry, cut out the little circular pieces very neatly with a pair of scissors. They resemble so exactly the head of a real screw as to deceive the most acute observer. Once I made a box for conjuring tricks, with a side swung on hinges, and fixed the sides of the box with these screw-heads in such a way as to impress the spectator with the idea that it was a piece of workmanship that could not be trifled with.