succeeding period when gold was a legal tender, when bank-notes also were used in effecting payments, the quantity of debased silver money did not exceed the quantity of silver coin fresh from the mint, which would have circulated if there had been no debased silver money; hence though the money was debased, it was not depreciated. Mr. Buchanan's explanation is somewhat different, he thinks that a subsidiary currency is not liable to depreciation, but that the main currency is. In King William's reign silver was the main currency, and hence was liable to depreciation. In 1774 it was a subsidiary currency, and therefore maintained its value. Depreciation, however, does not depend on a currency being the subsidiary or the main currency, it depends wholly on its being in excess of quantity.
To a moderate seignorage on the coinage of money there cannot be much objection, particularly on that currency which is to effect the smaller payments. Money is generally enhanced in value to the full amount of the seignorage, and therefore it is a tax which in no way affects those who pay it, while the quantity of money is not in excess. It must, however, be remarked, that in a country where a paper currency is established, although the issuers of such paper should be liable to