... of strong men gave the best of their energies to the opening of Africa during the nineteenth century. They were missionaries, like Moffat and Livingstone; scientific inquirers, like Barth, Rohlfs, Du Chaillu , Teleki, and Thomson; adventurous explorers, like Speke, Grant, Burton, Cameron, and Selous; and soldiers, statesmen, and organisers, such as Gordon, Rhodes, Samuel Baker, Emin Pasha, Johnston, Lugar...