The early work among the California Athabascans was done by Pliny Earle Goddard. Goddard began his studies of the Athabascans in 1897 at the Hoopa Indian Reservation, where he was a lay missionary. He stayed there until 1900, when he went to Berkeley to work for his doctorate in linguistics under Benjamin Ide Wheeler, President of the University of California. Between 1900 and 1909 Goddard was associated with the University as student and professor and during this time he visited the Athabascans periodically, until he had worked with virtually all the groups considered in this paper. During this same period A. L. Kroeber was engaged in gathering material for his classic Handbook of California Indians. Because of the scarcity of ethnographers in those years Kroeber could not afford the time to work in the Athabascan area and duplicate Goddard's investigations. Kroeber did study the Hupa and the Kato at either end of the Athabascan area but, except for a hurried trip through the region in 1902, he did not work with the other groups, and the responsibility for the ethnographic field work therefore devolved upon Goddard. Goddard, however, was not primarily an ethnographer but a linguist, and he directed his chief efforts toward linguistic investigations. He has published an impressive body of Athabascan texts and linguistic analyses but, except for his Life and Culture of the Hupa (1903_a_), almost nothing on the culture of the Athabascans. The net result is that the California Athabascans are virtually unknown, and Merriam's fresh data provide an opportunity to piece together the available evidence. The Merriam files, deposited at the Department of Anthropology of the University of California, contain information on each of the tribes of California, some of it being information gathered by Merriam himself, the rest clippings and quotations from various historic and ethnographic sources. The primary and secondary materials are easily distinguished, since Merriam gave scrupulous citations to his sources. Merriam's own data consist of word lists, ethnogeographical material, and random notes on various aspects of native culture. I have not used his word lists, since their usefulness is primarily linguistic and I am not competent to perform the necessary linguistic analysis, but all the random ethnographic notes which he recorded for the Athabascan groups are here included under the discussion of the appropriate tribes. Most of the Merriam Athabascan material is geographic, consisting of lists of villages and place names, of descriptions and lengthy discussions of tribal boundaries. Obviously Merriam attempted to gather a complete file of this sort of information, and he was largely successful. His work provides a good basis for establishing boundaries and for locating tribelets and villages.