Chadian Plain archaeology : an outline -- Social formations : an archaeological perspective -- The research program -- Excavations at Deguesse, Krenak, and Hamei -- Excavations at Yaéré sites -- Excavations at southeastern sites -- Excavations at Houlouf -- The formation of the landscape -- Genesis of the Houlouf chiefdom -- Contingency, "events," "mentalities," conjonctures and social formations
