A work of standard authority among scholars says that “Africa is the division of the world which is the most interesting, and about which we know the least.” Its very name is a mystery; no one can more than approximately calculate its vast extent; even those who have studied the problem the most carefully widely disagree among themselves as to the number of its population, some placing it as low as 60,000,000, others, much in excess of 100,000,000 souls; its superficial configuration in many portions is only guessed at; the sources of its mightiest river are unknown. The heats, deserts, wild beasts, venomous reptiles, and savage tribes of this great continent have raised the only barrier against the spirit of discovery and progress, elsewhere irrepressible, of the age, and no small proportion of Africa is to-day as much a _terra incognita_ as when the father of history wrote. Many of its inhabitants are among the most barbarous and depraved of all the people of the world, but in ancient times some of its races were the leaders of all men in civilization and were unquestionably possessed of mechanical arts and processes which have long been lost in the lapse of ages. They had vast cities, great and elaborate works of art, and were the most successful of agriculturists. Noted for their skill in the management of the practical affairs of life, they also paid profound attention to the most abstruse questions of religion; and it was a people of Africa, the Egyptians, who first announced belief in the resurrection of the body and the immortality of the soul. Large numbers of mummies, still existing, ages older than the Christian era, attest the earnestness of the ancient faith in dogmas which form an essential part of the creed of nearly every Christian sect. The most magnificent of women in the arts of coquetry and voluptuous love belonged to this continent of which so much still sits in darkness. The art of war was here cultivated to the greatest perfection; and it was before the army of an African general that the Roman legions went down at Cannæ, and by whom the Empire came near being completely ruined. Indeed, it may with much show of argument be claimed that the continent over so much of which ignorance and superstition and beasts of prey now hold thorough sway, was originally the cradle of art, and civilization, and human progress.