A 19th-century engineering journal article, number XXI in a series on weaving, explaining gauze (cross) weaving, in which whip threads are twisted around adjoining warp threads by doups and extra leashes. It covers half and full twists, doup and leash arrangements for ordinary and Jacquard looms, gauze selvages for cutting wide cloth into narrow strips, net weaving, and bobbin tension devices for the separate warp supplies. Illustrated with line diagrams (figs. 197-217) of looms and harness mechanisms, with no weaving drafts.