Oral tradition and the history of Igala ; The supernatural aspects of disease and therapeutics among the Igala; The Igala nomenclature and demography; Physical Environment of Igala land ; Language; Traditions of origin and history; Main features of Economy ; Social organization and political system; The Igala; Main Cultural Features; Religious Beliefs and Cults; Timber Trees; Spotter's Guide; Health Notes; Ecological Notes on Intermediate Snail Vectors of Schistomiasis (Bilharziasis); The Influence of Farming and Fire on the Vegetation of Igala land; Description of the Communities; Farm Grasses; A. A.D.P. The Modern Concept for Agriculture.