Morris Opler was a professor of anthropology at the University of Oklahoma. His books include An Apache Life-way: The Economic, Social, and Religious Institutions of the Chiricahua Indians; Myths and Tales of the Chiricahua Apache Indians; and Myths and Tales of the Jicarilla Apache Indians, all available in Bison Books editions. Philip J. Greenfeld is a professor of anthropology at San Diego State University. His articles on Apache culture and linguistics have appeared in contributed volumes and in American Anthropologist, Anthropological Linguistics, International Journal of American Linguistics, and Ethos.