, of the Publications staff of The UCLA Institute of Archaeology for their help in the preparation of this book. A special thanks goes to Janet Lever, whose tracing provided the cover art. DAVID s. WHITLEY LAWRENCE L. LOENDORF In the far west, Cressman (1937) for Oregon, and Heizer and Baumhoff (1962) for Nevada and eastern California, provided the most significant major studies. Heizer and Baumhoff's (1962) research has probably been the most influential in North Americ~ since Steward's. Their research was heavily influenced by Steward, as well as by the evolutionist writings of French 'primitive mentality' rather than reliable ethnography" (Lewis-Williams 1982:430) and, by about mid-century, it had been dis