From the Africa herself remains immutable from age to age the ebb and flow of her humanity have never ceased, and there is no reason to suppose ever will. What assurance have wee, after all, that the map-changes brought about in the last hundred years are more than fleeting; that the patches and streaks of civilization in the South and on the coastal fringe-a matter of two million white folk in a black population sixty times their number-will permanent and gradually overspread the whole Continent? The dark shadow has not vanished. It has only become chequered a little, here and there.