"Western Sudan . . . means for me an episode in Mungo Park's life. It means for me the vision of a young, emaciated, fair-haired man, clad simply in a tattered shirt and worn-out breeches, gasping painfully for breath and lying on the ground in the shade of an enormous African tree (species unknown), while from a neighboring village of grass huts a charitable black-skinned woman is approaching him with a calabash full of pure cold water, a simple draught which, according to himself, seems to have effected a miraculous cure."--Joseph Conrad, from "Geography and Some Explorers"