On the whole, however, it is impossible to review the colonial history of England without being struck with the many serious dangers that might easily have shattered the Empire, which were averted by wise statesmanship and timely--or at least not fatally tardy--concession. There was the question of the criminal population which we once transported to Australia. In the early stage of the colony, when the population was very sparse and the need for labour very imperative, this was not regarded as in any degree a grievance; but the time came when it became a grievance of the gravest kind, and the Imperial power had at length the wisdom to abandon it. There was the question of the different and hostile religious bodies existing in different portions of the Empire, at a time when the monopoly of political power by the members of a single Established Church, the exclusive endowment of its clergy, and the maintenance of the purely Protestant character of the English Government were cherished as religious duties by politicians at home. Yet at this very time an established and endowed Roman Catholic Church was flourishing in Canada, and there were numerous examples throughout the British dominions of the concurrent endowment of different forms of religious belief by the State,[5] while in India it abstained, with an extreme, and sometimes even an exaggerated, scrupulousness, from all measures that could by any possibility offend the native religious prejudices. There was the question of Slavery--though we were freed from the most difficult part of this problem by the secession of America. In addition, however, to its moral aspects, it affected most vitally the material prosperity of some of our richest colonies; it raised the very dangerous constitutional question of the right of the Imperial Parliament to interfere with the internal affairs of a self-governing colony, and it brought the Home Government into more serious collision with the local Governments than any question since the American Revolution. Whatever may be thought of the wisdom of the measures by which we abolished slavery in our West Indian colonies, no one at least can deny the liberality of a Parliament which voted from Imperial resources twenty millions for the accomplishment of the work. There was the conflict of race and creed which between 1830 and 1840 had brought Canada to absolute rebellion, and threatened a complete alienation of Canadian feeling from the mother-country. This discontent was effectually allayed and dispelled by the union of Upper and Lower Canada under a system of constitutional government of the most liberal character, which gave the colonists on all subjects of internal legislation a legislative independence that was in practice almost complete. Considered as a measure of conciliation this has proved one of the most successful of the nineteenth century, and in spite of a few discordant notes it may be truly said that there are few greater