Few historical events have been so impressive as the sudden and complete union of the South-African States. Seldom have men's minds progressed so rapidly, their life purposes changed so completely. In 1902 England, with the aid of her African colonists in Cape Colony and Natal, was ending a bitter war, almost of extermination, against the Dutch "Boers" of the Transvaal and the Orange Free State. In that year the ablest and most dreaded of England's enemies in Africa was the Dutch General, Louis Botha, leader of the fiercest and most irreconcilable Boers, who still waged a hopeless guerrilla warfare against all the might of the British Empire. As one English paper dramatically phrases it: "One used to see pictures of Botha in the illustrated papers in those days, a gaunt, bearded, formidable figure, with rifle and bandoliers--the most dangerous of our foes. To-day he is the chief servant of the King in the Federation, the loyal head of the Administration under the Crown, one of the half-dozen Prime Ministers of the Empire, the responsible representative and virtual ruler of all races, classes, and sects in South Africa, acclaimed by the men he led in the battle and the rout no less than by the men who faced him across the muzzles of the Mausers ten years ago. Was ever so strange a transformation, so swift an oblivion of old enmities and rancors, so rapid a growth of union and concord out of hatred and strife!" Necessity has in a way compelled this harmony. The old issue of Boer independence being dead, new and equally vital issues confronted the South-Africans. The whites there are scarcely more than a million in number, and they dwell amid many times their number of savage blacks. They must unite or perish. Moreover, the folly and expense of maintaining four separate governments for so small a population were obvious. So was the need of uniform tariffs in a land where all sea-coast towns found their prosperity in forwarding supplies to the rich central mining regions of Kimberley and Johannesburg. Hence all earnest men of whatever previous opinion came to see the need of union. And when this union had been accomplished, Lord Gladstone, the British viceroy over South Africa, wisely selected as the fittest man for the land's first Prime Minister, General Botha. Botha has sought to unite all interests in the cabinet which he gathered around him. The clear analysis of the new nation and its situation which follows is reproduced by permission from the _American Political Science Review_, and is from the pen of Professor Stephen Leacock, head of the department of Political Economy of McGill University in Montreal, Canada. A distinguished citizen of one great British federation may well be accepted as the ablest commentator on the foundation of another.