Fig. 23 shows another form of drill. For this one it is necessary to have a weight wheel attached to the lower part of the spindle. A hole is made through its center and the drill fitted to this. The one in Fig. 23 is fitted out with a rusty iron wheel which I found under the barn. Fig. 23 C shows a pottery weight wheel which I found many years ago in a gravel-pit in Mills Creek bottoms at Cincinnati, Ohio. It was brick-red in color and decorated with strange characters. For many, many years I did not know for what use this unique instrument was intended. I presented it to the Flushing High School (Long Island), where I trust it still remains. The fire-drill is twirled by moving the bow up and down instead of backward and forward.