The Wealth of Nations by Part 1 Chapter 11 Page 189

According to the eloquent and, sometimes, well-informed author of the Philosophical and Political History of the Establishment of the Europeans in the two 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 13,984,185 3/4 piastres 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 piastres, which, at 4s. 6d. the piastre, is equal to L3,825,000 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