A 1903 monograph by A. L. Kroeber on the names and forms of basket designs among the Yurok, Karok and Hupa of northwestern California, with shorter sections on Wishosk, Wintun and other neighboring groups. It describes basket types, materials and twining techniques, then catalogs design motifs by tribe, illustrated with numbered line drawings and photographic plates of baskets and caps. Comparative tables of equivalent design names and a comparison of pattern arrangement and design naming across California tribes follow, with a key to figures and museum catalogue numbers.