For more than a hundred years the colonies had been regarded as appendages to the crown rather than as an integral part of the empire; and when Parliament, at the instigation of the mercantile classes and in derogation of royal prerogative, began at the close of the seventeenth century to assume control over them, and, a few years later, to vote large sums from the imperial treasury for their protection, and, in some cases, for the support of their civil governments, that body looked for reimbursement to the profits which would inure to British merchants from the monopoly of colonial trade and navigation, and flow indirectly into the national Exchequer. But with the close of the French War a new policy seemed to become necessary. The debt had swelled to frightful proportions. The British people were groaning under the weight of the annual interest and their current expenses. Every source of revenue seemed to be drained, and the ministry turned their eyes for relief to the colonies; not, indeed, for relief from the present debt, but from the necessity of adding to it the whole expense of defending the colonies. This was the fatal mistake which precipitated the Revolution. On this subject, however, there seems to be some misapprehension. The popular idea was, and still is, that the colonists were to be taxed to pay the interest on the national debt and the current expenses of the government, and that all moneys raised in the colonies were to pass into the British Exchequer (thus draining them of their specie), there to remain subject to the king's warrant. Such, however, was not the scheme of the ministry. Not a farthing was to leave America. All sums collected were to be deposited in the colonial treasuries, and only certificates thereof were to be sent to the Exchequer. These were to be kept apart from the general funds, and, after defraying the charges of the administration of justice and the support of the civil government within all or any of the colonies, they were to be subject to parliamentary appropriation for their defence, protection, and security, and for no other purpose.[39]