■ Frank speaking in Ghana: Farmers in Northern Ghana have been warned against buying rice seedlings from the Government, which subsidises the price, ■ African cinema in London: By a correspondent One side effect of the cultural divisions in Africa produced by colonisation has been inadequacy of information about developments in different field ■ Books and publications: Debunking orthodoxies The Frontiers of Development Studies: by Paul Streeten (Macmillan, £7.50) ■ CDC passes £200m mark ■ Benue Plateau- Anatomy of a state: 2 Progress among the people- Last week, in the first of this four-part study of Benue Plateau State, Peter Harrigan explained how road building is bringing development. ■ Commercial news: Will Cocoa boom last? Crop prospects have declined steadily during the season says the latest Gill and Duffus Cocoa market report ■ Dateline Africa: Nigeria- Gowon's state visit- Gen Gowon has paid a three-day state visit to British