GATEKEEPER SERIES 1. Pesticide Hazards in the Third World: New Evidence from the Philippines. 1987. J.A. McCracken and G.R. Conway. 2. Cash Crops, Food Crops and Agricultural Sustainability. 1987. E.B. Barbier. 3. Trees as Savings and Security for the Rural Poor. 1992. Robert Chambers, Czech Conroy and Melissa Leach. (1st edition, 1988) 4. Cancer Risk and Nitrogen Fertilisers: Evidence from Developing Countries. 1988. J.N. Pretty and G.R. Conway. 5. The Blue-Baby Syndrome and Nitrogen Fertilisers: A High Risk in the Tropics? 1988. J.N. Pretty and G.R. Conway. 6. Glossary of Selected Terms in Sustainable Agriculture. 1988. J.A. McCracken and J.N. Pretty. 7. Glossary of Selected Terms in Sustainable Economic Development. 1988. E.B. Barbier and J.A. McCracken. 8. Internal Resources for Sustainable Agriculture. 1988. C.A. Francis. 9. Wildlife Working for Sustainable Development. 1988. B. Dalal-Clayton. 10. Indigenous Knowledge for Sustainable Agriculture and Rural Development. 1988. D.M. Warren and K. Cashman. 11. Agriculture as a Global Polluter. 1989. Jules N. Pretty and G.R. Conway. 12. Evolution of Agricultural Research and Development Since 1950: Toward an Integrated Framework. 1989. Robert E. Rhoades. 13. Crop-Livestock Interactions for Sustainable Agriculture. 1989. Wolfgang Bayer and Ann Waters-Bayer 14. Perspectives in Soil Erosion in Africa: Whose Problem? 1989. M. Fones-Sondell. 15. Sustainability in Agricultural Development Programmes: The Approach of USAID. 1989. Robert O. Blake. 16. Participation by Farmers, Researchers and Extension Workers in Soil Conservation. 1989. Sam Fujisaka. 17. Development Assistance and the Environment: Translating Intentions into Practice. 1989. Marianne Wenning. 18. Energy for Livelihoods: Putting People Back into Africa's Woodfuel Crisis. 1989. Robin Mearns and Gerald Leach. 19. Crop Variety Mixtures in Marginal Environments. 1990. Janice Jiggins 20. Displaced Pastoralists and Transferred Wheat Technology in Tanzania. 1990. Charles Lane and Jules N. Pretty. 21. Teaching Threatens Sustainable Agriculture. 1990. Raymond I. Ison. 22. Microenvironments Unobserved. 1990. Robert Chambers. 23. Low Input Soil Restoration in Honduras: the Cantarranas Farmer-to-Farmer Extension Programme. 1990. Roland Bunch. 24. Rural Common Property Resources: A Growing Crisis. 1991. N.S. Jodha 25. Participatory Education and Grassroots Development: The Case of Rural Appalachia. 1991. John Gaventa and Helen Lewis 26. Farmer Organisations in Ecuador: Contributions to Farmer First Research and Development. 1991. A. Bebbington GATEKEEPER SERIES NO. SA 34