The Gê-speaking tribes of Central Brazil have always been an anomaly in the annals of anthropology; their exceedingly simple technology contrasts sharply with their highly complex sociological and ideological traditions. Dialectical Societies, the outgrowth of extended anthropological research organized by David Maybury-Lewis, at long last demystifies Gê social structure while modifying and reinterpreting some of the traditional ideas held about kinship, affiliation, and descent.

Each of the seven contributors deals with a different lowland tribe, butall of them address an ideological focus on the dualistic tribal organization that is here defined as fundamental to the Gê As a collection, their work comprises a substantial revision of the hitherto undeveloped and largely ignored ethnography of Central Brazil.

For the Suya, a Ge-speaking tribe of Central Brazil, nature and culture are perceived as fundamental opposites. Yet surprisingly few basic principles seem to underlie both Suya cosmology and society on their various levels—from the construction of villages and the classification of animals and humans to body ornamentation, dietary restrictions, myths, and curing chants.

In this integrated and far-reaching analysis, Anthony Seeger makes a significant contribution to the structural inquiry into lowland South American cosmologies begun by Levi-Strauss. He delineates various strata of the Suya world—perceptions of time and space, kinship, politics and medicine, groupings of animals, plants, and humans—and evolves a simple set of beliefs about nature and transformation that seems to govern all of them. His is an extremely rich and lucid account of the field methods, experiences, and observations that comprised the exploration into a hitherto unfamiliar tribe.