As well as this transverse political division of Africa, we may make what may be called a concentric analysis. Commencing with the outer _skin_, the 16,000 miles of African coast, we find upon it certain excrescences, which, if our examination went but skin-deep, might well lead us to regard Africa not as a "new," but as an "old, old" world. On the north and east the remains of ancient civilizations, Morocco, Tangier, Egypt, remind us of Africa's bygone grandeur--remind us how very much of forms of beauty and secrets of science and art came to us in the birth of civilized Europe from or through Africa. On the south and west again, memorials of Phoenician, of Portuguese, of Dutch, English and American conquering visitors and adventurers remind us of the constant preying of the nations on the dark continent--remind us, through certain prison castles still to be seen on the western coast, of the great world's crime, the slave trade. But on the outer surface of Africa other signs are to be read: North, south, east and west there are ports and roadsteads forested with the masts of the world's shipping conveying to Africa's every shore those products of the civilized world which, according to their nature for good or harm, are to influence and civilize the Africans; carrying away from her shore the land's products--a constant stream, increasing perhaps just now, but which has always been flowing--of wool, cotton, oil, rich spices, dyes and medicinal and ornamental woods, india-rubber, gum-copal, ivory, precious stones, gold. Are these the products of a desert land inhabited only by a lazy and savage people? Following our concentric analysis, the first layer behind the outer skin of Africa may be said to consist of a verdant slope, broad and luxuriant in the tropics, where nature herself has been lavish, narrower, but still ever widening, in the drier north and south, as the oriental and the European respectively advance their groves of fruit and fields of corn, maintained in luxuriance alike by the vapors of the sea and the down drainage from the higher lands, and from the same causes also malarious and {240} unhealthy. In another sense, too, this outer belt is both rich and unhappy. Into it come those men and things representing "civilization" from afar. To it, from the interior, gravitate those of the natives who are influenced by contact with those men and things, deprived to a great extent of the old uncivilized condition and its innocencies and partially imbued with what of civilization has come to them. Mankind, too, in this outer belt is often only too rank and unhealthy in his character. It is truly "darkest Africa;" for, first, the slave trade and then the rum bottle have in many parts been the preponderating representatives to them of outer civilization.