Fig. 28.
Sticker. A slender rod of light wood, not larger than a common cedar pencil, and from a few inches to a foot or two in length (Fig. 29).
Fig. 29.
Tracker. A flat riband of pine, sometimes several feet in length, about ⅜ inch in width, and less than ⅛ inch in thickness. Trackers, however, are now frequently slender round rods, like the stickers (see Fig. 30).
Fig. 30.
Tapped Wires. Formerly of brass, afterwards of tinned iron, and now generally of phosphor-bronze or some other alloy. These are pieces of wire about 3½ inches in length, from No. 16 to No. 18 in gauge, and cut with a screw-thread upon about half their length, with a ring or hook at the untapped end.