In Volume 17, a series of critical appreciations of George and Louise Spindler's multidisciplinary contributions focus on homogeneity and heterogeneity in American cultural anthropology (S. Parman); the molding of American anthropology (M. Suarez); education (H. Trueba); and the uses of projective techniques in the field (R. Edgerton & G. DeVos). Additional topics include the primary process (M. Spiro); psychotherapy and culture (L. Bloom); unconscious aspects of the Arab-Israeli conflict (A. Falk); and medieval messianism and Sabbatianism (W. Meissner).