Of circulating Paper–of Bank Notes–of Bills considered as circulating Paper–different Degrees of Rapidity in the Circulation of different Sorts of circulating Medium, and of the same Sort of circulating Medium at different Times.–Error of Dr. A. Smith.–Difference in the Quantities wanted for effecting the Payments of a Country in Consequence of this Difference of Rapidity.–Proof of this taken from Events of 1793.–Fallacy involved in the Supposition that Paper Credit might be abolished.