Note 15 — Products of Industry
Reading edition
The tools employed are a short knife or a miniature head-axe and an awl. With the former the operator scrapes the outer surface, and then splits the tube into strips of the desired width and thickness. A certain number of these strips, which are to be used for decoration, are rubbed with oil, and are held in the smoke of burning pine or of rice-straw until a permanent black is obtained.15