UTAFITI Joamal of •• .Faculty of Arts and Social Sciences University of Dar es Salaam J.F. Mbwlliza K Mustafa N. Lipumba Editorial Board F.J. Kaijage (ex-officio) D. Komba M_ben, E. Wamba-dia-Wamba l. Msabaha P.O. Mlama Editorial A.llitant; D. twoga Priee: 2 SO. Shillings Annual Subscription: Within Tanzania Tsh. 500 Institutions outside Tanzania:$ 2S or £12.50 lndividuals outside Tanzania SlS or £8 .Rates are ~ive of surface postage. (For airmail postage add S 2 or £ 1 Th~ent of subscription should be made' .in favour aftbe aw.w. UaiveNity of Du ell Salaam. and sent to: ChWUtor UTAIJilIl1 ~ Arts and SoeIIU Scfenc:M P.O-. Boz 3.5051 Dar .. s.Ium. UTAFITI .. Vol.8 No 2 .1986 Journal otthe FacUlty of Arts. and Social Sciences Uiliversity of Dar es Salaam P.O. Box 35151 UniversityofDar.es;SaIaam