We were now ready to make the wheel. From Lumberville four 1/2-inch boards, each 3 inches wide and 15 feet long, were procured; also a bar of iron 3/4 of an inch in diameter and 2 feet long. At the center of one of the boards a block of wood 4 inches long and 4 inches in diameter was nailed on for a hub. A 3/4-inch hole was now drilled through this hub and the board. Holes were also drilled into the other boards at their centers. Then they were all strung onto the bar and spaced like spokes at equal angles apart. Bill had figured it out some way that the ends of the boards should be just about 5 feet 10-1/2 inches apart. When the boards were all arranged we nailed them together at the center, and connected the ends with narrow tie boards, as indicated in Fig. 256.

Fig. 254. The Small Tower. Fig. 255. The Hub.