It was his second and third journeys that established Livingstone’s fame as a great explorer.  In those journeys (1853-56) his routes were from the Upper Zambesi to Loanda in Portuguese West Africa, and then from Loanda to the mouth of the Zambesi, nearly twelve thousand miles of travel.  The third journey was the first crossing of the continent; and while traversing the wide savannas of the uplands and revealing the Zambesi, the fourth largest river of Africa, from source to delta, he was able to verify one of the most brilliant generalizations ever made by a geologist.  Sir Roderick Murchison, President of the Royal Geographical Society, in 1852, deducing his conclusions from the very fragmentary and imperfect knowledge of Africa then extant, evolved his striking hypothesis as to the physical conformation of the continent, which has been briefly mentioned above and is the accepted fact of to-day.  Livingstone was able to prove the accuracy of this hypothesis, and he dedicated his “Missionary Travels” to its distinguished author.

The Makalolo chief, Sekeletu, on the Zambesi River, supplied Livingstone with men, ivory, and trading commissions, that helped the humble and unknown white man, lacking all financial resources except his slender salary, to make the two great journeys which kindled the world’s interest and led to the wonderful achievements of our generation.  In this noteworthy incident we see the human agencies through which Africa will attain the full stature allotted to her.  The Caucasian and the Negro each has his onerous part in the work of bringing the civilized world and Africa into touch and accord.

When Livingstone went home, after his third journey, his fellow-countrymen crowded to see and hear the explorer, who had added more facts to geographical knowledge than any other man of his time.  They saw a person of middle age, plainly and rather carelessly dressed, whose deep-furrowed and well-tanned face indicated a man of quick and keen discernment, strong impulses, inflexible resolution, and habitual self-command.  They heard a speaker whose command of his mother tongue was imperfect, and who apologized for his broken, hesitating speech by saying that he had not spoken the English language for nearly sixteen years.  In no public place did he ever allude to his personal sufferings, though fever had brought him to death’s door and the years had been crowded with the most harrowing cares.  The work he had done and would carry on to the end, the new Africa he alone could describe, the faith that had grown and strengthened in every week of his long pilgrimage that the world needed Africa, its resources and peoples, were the burden of every utterance.  The great London meeting where he first appeared took practical measures to support him in the work he had begun unaided; and one of the resolutions adopted, declaring that “the important discoveries of Dr. Livingstone will tend hereafter greatly to advance the interest of civilization, commerce, and freedom among the numerous tribes and nations of that vast continent,” was prophetic of all the best fruits of the colossal work that has been done to the present time.