In fretting n banjo, first the position of the bridge must be marked off it in. below the base of the handle. Measure the distance between that point and the piece of ebony or ivory glued in at the top of the handle, and divide this distance into eighteen parts; then the position of the first fret, measuring from the ebony just mentioned, will be equal to the length of one of these divisions. From the point thus determined, again measure the distance to the bridge, subdivide it by eighteen, and mark off for the next fret below the first. The total number of frets is sixteen, and the place of each must be found as described, by subdividing the space between the bridge and successive frets, so that every division is proportionally less in length as progress is made. Purchase a set of sixteen fret wires or, if preferred, a single length to be cut as required. Saw the necessary grooves in the handle with a thin tenon saw, taking great care to set them squarely across the fingerboard, and then insert the fret wires They should fit tightly, and be raised slightly above the plane of the handle.