Includes index.

Bibliography: p. 248-252.

Faris, J. C. Southeastern Nuba age organisation.--James, W. The politics of rain control among the Uduk.--Holy, L. Residence among the Berti.--Kronenberg, A. and Kronenberg, W. The bovine idiom and formal logic.--al-Shahi, A. S. Proverbs and social values in a Northern Sudanese village.--Cunnison, I. Blood money, vengeance and joint responsibility: the Baggara case.--Asad, T. Political inequality in the Kababish tribe.--Haaland, G. Nomadism as an economic career among the sedentaries of the Sudan Savannah Belt.--Ahmed, A. G. M. The Rufaa al-Hoj economy.--Rehfisch, F. A rotating credit association in the three towns.--al-Dawi, T.A.A. Social characteristics of big merchants and businessmen in El Obeid.--Harries-Jones, P. The Jamuiya development scheme.