Contents: * Preface
* Acknowledgements
1. Introduction
2. The Place of Agriculture in the Economics of Tropical Africa
3. The Internal Market and Commercialization of Farming
4. Farming Systems and Their Evolution
5. The Varied Pattern of Achievement as Revealed by the Field Studies
6. Social Determinants of Agricultural Change
7. Agricultural Extension Services
8. The Agricultural Research Base and the Flow of Technological Innovations
9. Priorities in Agricultural Research
10. Some General Propositions and Afterthoughts
* Sources Cited
* Name Index
* Subject Index