The web is kept stretched by means of a strap or belt, which attaches to the near roller and then passes around the waist of the operator, who sits on the floor with her feet against a bamboo brace. [239] The arrangement of the lease rod and heddle sticks has been already described; in addition to these the threads are further controlled by a reed board which acts both as warp spacer and beater-in. All being ready for the weaving, the shed is opened by raising one of the heddle sticks, and a heavy knife-shaped batten of wood is slipped into the opening. This is turned sideways to enlarge the shed, and a shuttle bearing the weft thread is shot through. By raising and lowering the heddle rods the position of the warp is changed as desired, while from time to time the weft threads are forced up against the fabric by means of the reed board, and are beaten in with the batten. Tangling is prevented by means of several flat sticks which cross the warp at some distance from the operator; while threads which show signs of loosening are carefully rubbed with a waxed stick. On this loom the woman produces head-bands, belt, and narrow strips of cloth which are made up into blankets and the like. These fabrics are often in several colors and exhibit many tasty and intricate designs, some of which will be described in the chapter on Decorative Art. _Manufacture of Rope and String_.--At least eighteen trees, shrubs, and vines are used in the making of cordage. [240] When small trees or limbs are used, and the bark does not adhere too tightly to the wood, sections about an arm's length are cut, and two or four splices are made at the top. These are loosened with a knife until there is enough for the hand to grasp, when the bark can be turned back like a glove. Very large sections are held by two men, while a third peels off the bark. With some varieties of trees and shrubs it is found best to place the sections in the sun to dry, then a sharp bend in the stalk causes the bark to separate from the wood so that it is easily peeled off. When large trees are used, the bark is slit lengthwise every six of eight inches, and the log is beaten with hard wood sticks. In a short time the covering loosens from the wood and is pulled off. The outside layer is worthless, but the remainder is cut into strips about a half inch in width, and is then split lengthwise into thin layers.