Decorative art is most highly developed in basketry. The basketry of the Coast tribes is made by twining or weaving, but the highly decorated basketry of the interior is exclusively of the coiled type. Only among the Sahaptin and other tribes to the southeast do we find elaborately decorated twined bags. The twined weaving of the interior of British Columbia is largely undecorated or bears a few lines set off in lighter color. The coiled weaving is decorated by imbrication, a method peculiar to that part of the plateaus extending from the Columbia River to Chilcotin (fig. 308). In this area a number of decorative art styles have developed. These appear most clearly on the burden baskets. The southern baskets are round and flaring, those of southern British Columbia are angular in cross section, those of the north oblong and of irregular form. The southern baskets are decorated all over with designs resembling Californian patterns. Those of the Thompson River have design areas set off against an undecorated background. The designs are made by imbrication and extend over the whole side of the basket, evenly on all sides. The Lillooet baskets are more flaring than those of the Thompson. The coils are wider and the decorative field is arranged in a different manner. The imbrication is confined to the upper two-thirds of the basket while the lower part remains undecorated, except that there are frequently two hangers on the wide sides which may be compared to the hangers on Tlingit baskets, described before. I am doubtful whether there is an historical connection between the two, notwithstanding their striking similarity. The Indians suggest that the hangers may have developed from the earlier use of birch bark baskets. These were often wrapped at the upper part with buckskin the lower portion of which hung down freely in fringes, so that the droppers would represent the fringes. Many of the Lillooet designs are large. (Plate XV). The Chilcotin type differs from the preceding by the small size of the coil and a distinctive form, the narrow ends being higher than the middle of the long sides. The treatment of the decorative field is similar to that used by the Tlingit. The ornamentation consists of three bands; the upper and the lower ones wide, bearing the same kind of decorative design and the central one narrower and either undecorated or showing a design of a different character. Arrangements of this kind are used so frequently that is seems hardly justifiable to consider them as proof of an historical connection between Tlingit and Chilcotin basketry. We find similar arrangements for instance in the pouches of the Woodland Indians referred to on p. 175, figs. 149, 150. [Illustration: PLATE XV. Imbricated Baskets from British Columbia and Washington.] LITERATURE, MUSIC, AND DANCE.