A Basic Objective Of This Volume Is To Compare The Main Approaches To Agricultural Extension Used In Sub-saharan Africa Today. Thus Pickering (chap. 1) Offers A Typology Of The Extension Methodoloies Most Commonly Found In The African Context. The Chapters That Follow Analyze The Strengths And Weaknesses Of Four Major Approaches Or Illustrate Them In Practice With Specific Case Studies. New Developments In Agricultural Extension / Michael Baxter (6 P.). -- Public Investment In Africa's Extension Services / John Bruce Howell (8 P.). -- Extension Under East African Field Conditions / Jon R Moris (12 P.). -- The Farming Systems Approach In Senegal / Jacques Faye (6 P.). -- The Farming Systems Approach And Links Between Research And Extension / Bede N Okigbo (8 P.). -- On-farm Research With A Farming Systems Perspective / Michael P Collinson (8 P.). -- Village Associations And Agricultural Extension In The Republic Of Mali / Boubacar Sada Sy (6 P.). -- Proposals For A New Approach To Extension Services In Africa / Guy Belloncle (8 P.). -- The Design Of T & V Extension Programs For Small Farmers In Ethiopia / Alemneh Dejene (6 P.). -- A Few Questions On The Training And Visit Method / Dominique Gentil (6 P.). -- The World Bank And The Training And Visit System In East Africa / Nigel Roberts (6 P.). -- The Extension System Of British-american Tobacco (kenya) Limited / Francis N Kimani (6 P.). -- The Commodity-driven Approach Of The Cotton Companies / Guy Mahdavi (6 P.). -- Agricultural Extension And Its Linkage With Agricultural Research / Donald Pickering (4 P.). Edited By Nigel Roberts. Papers Which Had Their Genesis In Two Workshops Held June 1984 At Eldoret, Kenya And The Other Held February 1985 At Yamoussoukro, Côte D'ivoire. Includes Bibliographical References (p. 99-102).