The population, trade, and resources of all these Colonies have so rapidly increased of late years, and the removal f trade-restrictions has made them, in so great a degree, self-sustaining, that it appears to the Government of Canada exceedingly important to bind still more closely the ties of their common allegiance to the British Crown, and to obtain for general purposes, such an identity in legislation as may seem to consolidate their growing power, thus raising, under, the protection of the Empire, an important Confederation on the North American Continent. At present, each Colony is totally distinct in its government, its customs and trade, and its general legislation. To each other no greater facilities are extended than to any foreign State; and the only common tie is that which binds all to the British Crown. This state of things is considered to be neither promotive of the physical prosperity of all, nor of that moral union which ought to be preserved in the presence of the powerful Confederation of the United States.
§.121 of the Constitution Act, 1867.