A full account of this perilous journey will be found elsewhere in this volume, in connection with the now historic efforts of that gallant band of African pioneers who immortalized themselves prior to the founding of the Congo Free State. Suffice it to say here, that it took him two years to find Livingstone at Ujiji, upon the great lake of Tanganyika, which lake he explored, in connection with Livingstone, and at the same time made important visits to most of the powerful tribes that surround it. He returned to civilization, but remained only a short while, for by 1874 he was again in the unknown wilds, and this time on that celebrated journey which brought him entirely across the Continent from East to West, revealed the wonderful water resources of tropical Africa and gave a place on the map to that remarkable drainage system which finds its outlet in the Congo river. Says the Rev. Geo. L. Taylor of this march: “It was an undertaking which, for grandeur of conception, and for sagacity, vigor, and completeness of execution, must ever rank among the marches of the greatest generals and the triumphs of the greatest discoverers of history. No reader can mentally measure and classify this exploit who does not recall the prolonged struggles that have attended the exploration of all great first-class rivers——a far more difficult work, in many respects, than ocean sailing. We must remember the wonders and sufferings of Orellana’s voyages (though in a brigantine, built on the Rio Napo, and with armed soldiers) down that “Mediterranean of Brazil,” the Amazon, from the Andes to the Atlantic, in 1540. We must recall the voyage of Marquette and Joliet down the Mississippi in 1673; the toils of Park and Landers on the Niger, 1795-1830; and of Speke and Baker on the Nile, 1860-1864, if we would see how the deed of Stanley surpasses them all in boldness and generalship, as it promises also to surpass them in immediate results. The object of the voyage was two-fold: first, to finish the work of Speke and Grant in exploring the great Nile lakes; and, secondly, to strike the great Lualaba where Livingstone left it, and follow it to whatever sea or ocean it might lead.”