folded at each margin so that a ring is made up of three thicknesses of matting. This ring is smaller than the other types and is used for lighter burdens (fig. 36, b). Almost any cloth (fig. 36, c) may be improvised into a head ring, and aprons are especially convenient for such use.
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| a | b | c |
| Fig. 36. Head rings. a, Willow bark; b, agave leaf; c, cloth. |
Rope
Picket ropes of maguey fiber (figs. 37, b and 38) are brought by the Papagos to trade to the Pimas. They are about 10 m. long and 1 cm. in diameter, made of four 2-ply strands. They ere strong, but the harsh and coarse fiber renders them disagreeable to the touch of any but a hardened hand. The prepared fibers for rope making in this collection measure 60 cm. in length. With such material and a rope twister the process of manufacturing rope is a rapid one.
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| a | b |
| Fig. 37. a, Horsehair halter; b, maguey rope. |
