In the partition of Africa, Britain, in spite of the already immense extent of her domains, obtained an astonishingly large share. The protectorates of British East Africa, Uganda, Nigeria, Nyasaland, and Somaliland gave her nearly 25,000,000 new negro subjects, and these, added to her older settlements of Sierra Leone and the Gold Coast, whose area was now extended, outnumbered the whole population of the French African empire. But besides these tropical territories she acquired control over two African regions so important that they deserve separate treatment: Egypt, on the one hand, and the various extensions of her South African territories on the other. When the partition of Africa was completed, the total share of Britain amounted to 3,500,000 square miles, with a population of over 50,000,000 souls, and it included the best regions of the continent: the British Empire, in Africa alone, was more than three times as large as the colonial empire of Germany, which was almost limited to Africa. It may well be asked why an empire already so large should have taken also the giant's share of the last continent available for division among the powers of Europe. No doubt this was in part due to the sentiment of imperialism, which was stronger in Britain during this period than ever before. But there were other and more powerful causes. In the first place, during the period 1815-78 British influence and trade had been established in almost every part of Africa save the central ulterior, and no power had such definite relations with various native tribes, many of which desired to come under the protectorate of a power with whom the protection of native rights and customs was an established principle. In the second place, Britain was the only country which already possessed in Africa colonies inhabited by enterprising European settlers, and the activity of these settlers played a considerable part in the extension of the British African dominions. And in the third place, since the continental powers had adopted the policy of fiscal protection, the annexation of a region by any of them meant that the trade of other nations might be restricted or excluded; the annexation of a territory by Britain meant that it would be open freely and on equal terms to the trade of all nations. For this reason the trading interests in Britain, faced by the possibility of exclusion from large areas with which they had carried on traffic, were naturally anxious that as much territory as possible should be brought under British supremacy, in order that it might remain open to their trade.