COMMONWEALTH 361 the succession to the Throne requires the consent of the Dominion Parliaments as well as that of the United Kingdom. This provision came into operation at the Abdication of Edward VIII. To this extent the Sovereignty of the Westminster Parliament is limited, and the Statute may be regarded as the beginning of a written Constitution for the Commonwealth. It is ariguable in law that the Parliament which passed this Statute has power to repeal it, but in fact no such attempt would be made. Except for certain points expressly mentioned in the Statute, the Dominions possess complete power of self-Government* CANADA. After the discovery of the New World, Britons and Frenchmen settled on the eastern fringe of Canada, and after the Seven Years War (1756-1763) both communities were brought under British rule. There was further migration from Britain, and when the Thirteen Colonies proclaimed their independence, and became the United States, a number of people who wished to remain under British rule entered Canada. New Provinces, each with its form of Government prescribed by the British Parliament, were created. Disputes between Protestant Britons and Catholic Frenchmen hindered co-operation between the Provinces, though there was an obvious need for combined effort to develop the untouched regions of the West. Accordingly, the British North America Act, 1867* set up a Federal Constitution for the Dominion of Canada, whose boundaries now reach to the Pacific. Each Province was guaranteed certain rights, and provision was made against the passing of laws which should interfere with the religious liberties of the French minority. The powers of the Provinces, however, are small, and over all matters that the Act does not definitely assign to them, the Dominion Government has power; the latter can also disallow any Acts passed by the Legis- latures of the Provinces. In technical language, Canada is a Federal State, granting "residual powers" to the Federal Authority and having a rigid constitution, Viz.: the British North America