Essay IV. On the nature and principles of public credit. [electronic resource] : Containing observations on the system of redemption laid down in the late act of Parliament; and on the Means of preserving the Sinking Fund in its proper Line of Service: together with a brief Account of the Rise, Progress, and Present State, of the Public Debts. To which is added, an appendix. Containing Tables of the Comparative Values of Annuity Stocks bearing different Rates of Interest; with their Explanation, and Use.