Indies, the annual importation of registered gold and silver into Spain, at an average of eleven years, viz. from 1754 to 1764, both inclusive, amounted to 13,984,1853⁄5 piasters of ten reals. On account of what may have been smuggled, however, the whole annual importation, he supposes, may have amounted to seventeen millions of piasters; which at 4s. 6d. the piaster is equal to £3,825,000 sterling. He gives the detail, too, of the particular places from which the gold and silver were brought, and of the particular quantities of each metal which, according to the register, each of them afforded. He informs us, too, that if we were to judge of the quantity of gold annually imported from the Brazils into Lisbon by the amount of the tax paid to the King of Portugal, which it seems is one-fifth of the standard metal, we might value it at eighteen millions of cruzadoes, or forty-five millions of French livres, equal to about two millions sterling. On account of what may have been smuggled, however, we may safely, he says, add to this sum an eighth more, or £250,000 sterling, so that the whole will amount to £2,250,000 sterling. According to this account, therefore, the whole annual importation of the precious metals into both Spain and Portugal, amounts to about £6,075,000 sterling.
Several other very well authenticated, though manuscript, accounts, I have been assured, agree, in making this whole annual importation amount at an average to about six millions sterling; sometimes a little more, sometimes a little less.
The annual importation of the precious metals into Cadiz and Lisbon, indeed, is not equal to the whole annual produce of the mines of America. Some part is sent annually by the Acapulco ships to Manila; some part is
