? OUTH AMERICA has traditionally been the main source of the world's coffee supply. After a series of ecological and marketing crises in the last 25 years, that area still accounted in 1958 for 56.4 per cent of total world exports (Table I). Since World War II, however, the African continent has made rapid progress in coffee cultivation, becoming the second most important coffee-growing area and contributing 24.3 per cent of world exports in 1958 against 8.1 per cent in the immediate prewar years.1 In the greatest market for coffee, North America, African robustas have been increasingly accepted because of their lower prices and better quality in relation to poorer grades of Brazilian and Columbian arabicas.2 Among African coffee-growing countries, Angola held second rank during the years 1953 through 1957. In 1958, it was slightly surpassed by the customary third producer, Uganda; in that year its exports