28 Editorial Board Chief Editor Dr. A.F. Lwaitama Board Members: Dr. S.T.M. Lukusa Dr. MJ. Mbonile Prof. R.S. Katapa Dr. S. Mesaki E. Kessy Dr. H.P.B. Moshi Dr. R.D. Mekacha Dr. N .E. Ossoro Dr. R. Meena Dr. I.R. Mbise Ex-Officio Member: Prof. M.S.». Bagachwa ":ditorilll A.ssistant: J .M.K. Mallya UTAFlTl is published biannually by the Faculty of Arts and Social Sciences of the University of Dar es Salaam. Tanzania. Correspondence Manuscripts and any other correspondence should be addressed to: The Chief Editor UTAFITI Faculty of Arts and Social Sciences P.O. Box 35054 Dar es Salaam. TANZANIA Subscriptions Annual subscription (two issues per year): Within Tanzania: Tsh 4000/= Outside Tanzania: US$ 60.00 (Rates inclusive of airmail postage.) Please make payment payable to: The Chief Editor, UTAFITI. ISSN 0856 096X ISSN 08S6096X UTAFITI (New Series) Vol. 2 Nos. 1 & 2,1995 Journal of the Faculty of Arts and Social Sciences University ofDar es Salaam Contents Capacity Building in Research M. S.D. Bagachwa 1 Does Medium of Instruction Really Matter? The Language Question in Africa: The Tanzanian Experience Z. M. Roy-Campbell 22 A Supply Model of Reduced Type for Marketing of Agricultural Crops in Tanzania W. E. Maro, H. Hellenes, K. Stenberg, & M. Lund 40 Non-Government Secondary Schools in Tanzania: Issues Related To Their Characteristics, Financing, Unit Costs and Student Selection J. C J. GaJab.awa •••••••••••••••••••••••••••••••••••••••••••••••••••• 68 Adult Education Methods in the Promotion of Integrated Community-Based Development A.N.Kwektl •••••••••••••••.•••••••••••••••••.••••••••••••••••••••••••••94 The Impact of Rural Energy Use on the Enviromnent During the Economic Reforms Period(1981-1992): Some Evidence From Tanzania K. Kulindwa & F. Shecharnbo UO ii UTAFITI (New Series) Vol. 2 Nos. 1 & 2, 1995 Alcoholisation in Third World Countries S. Mesaki 132 Reversing Africa's Decline: What Must Be Done? A. J. Liviga 145 Farm Forestry for the Market: Some Aspects of Financial Evaluation of Rural Woodlots in Tanzania V. R.M.S. Kihiyo 165