tially of the same culture as their eventual clients. They had to pretensions of superiority over the farmers.1 Governments also supported scientific research. As agricultural science advanced, the character of these extension systems also changed. More communications flowed from scientists to farmers. Highly special- ized extension personnel was needed to carry these communications. However, this new flow of information was injected to a system which already had farmer participation and control. In other regions of the world, extension services were created as part of the rural programs of colonial administrators. In the British, French, and Dutch colonies of Africa and Asia, extension programs were designed to provide supplies of desired commodities--indigo, tea, coffee, rubber, cocoa, peanuts, sugar, etc. To fit this need, many research and extension systems were oriented toward a single specific commodity. In many cases these organizations continued after independence to maximize foreign exchange earnings. The British-American Tobacco Company which functioned in China and other places, the Kenya Tea Authority, the Jute Ministry in Bangladesh, the Rubber Research Institute in Malaysia and the crop-specific "operation" or societies for cotton, peanuts, cocoa, coffee, etc. in the Sahelian countries of Africa are all examples of this tendency. These types of parastatal agencies normally have some applied research to determine a suitable "package" to grow the commodity. The extension agencies then distribute the required inputs (seeds, ferti- lizer, insecticide) and credit to buy them, offer highly detailed field management instructions, and then purchase from the farmers the produce, carefully graded for quality, at a price which normally is fairly low. K. Robert Kerr and Robert Crom, "Putting Innovative Technology to Work in Agriculture," Mimeo, Ames, Iowa, May 1979.