The debts of the nation stated and consider'd in four papers : viz : I. A letter to a friend concerning the publick debts, particularly that of the navy : II. A state of the five and thirty millions mention'd in a report of a committee of the House of commons : III. An estimate of the debt of her majesty's navy on the heads hereafter mention'd ... IV. A brief account of the debts provided for by the South-Sea act, and the times when they were incur'd: with some short observations.