1. Assistant Professor, Department of Sociology and Anthropology, Dalhousie University. This paper is based on fieldwork carried out from January, 1968, to June, 1969, in North Central State, Nigeria, supported by U.S.N.S.F. doctoral dissertation grant G.S. 1838, the senior investigator of which was Professor Robert A. LEVINE of the University of Chicago. A fuller discussion of the material here presented is to be found in my dissertation, “Hausa and Maguzawa: Processes of Differentiation in a Rural Area...