An essay on the national debt, and national capital, or, The account truly stated, debtor and creditor : wherein is shewn, that the former is but a diminutive part of the latter, and a practicable scheme exhibited, whereby the whole may, with great facility, be paid off, at once, exclusive of the aid of the sinking fund, and without any diminution of the present revenues of the crown, or annual expences of the people /