The name Heinrich Barth is almost unknown today. But he is without doubt the greatest explorer that Germany produced in the nineteenth century, and probably even in the twentieth. Not only did he penetrate completely unknown regions of Africa, but he kept a meticulous record of his travels, to such an extent that his published works are still useful to scholars today. Even in his own day he did not receive the recognition that he deserved; central Africa was then so unknown even to educated Europeans that a balanced appraisal of his work was not possible at the time. Yet a review of his life and travels leaves little doubt that he must be ranked among the bravest and most resourceful of all explorers of the African continent.