The continual consumption of the precious metals in coin by wearing, and in plate both by wearing and cleaning, is very sensible; and in commodities of which the use is so very widely extended, would alone require a very great annual supply. The consumption of those metals in some particular manufactures, though it may not perhaps be greater upon the whole than this gradual consumption, is, however, much more sensible, as it is much more rapid. In the manufactures of Birmingham alone, the quantity of gold and silver annually employed in gilding and plating, and thereby disqualified from ever afterwards appearing in the shape of those metals, is said to amount to more than fifty thousand pounds sterling. We may from thence form some notion how great must be the annual consumption in all the different parts of the world, either in manufactures of the same kind with those of Birmingham, or in laces, embroideries, gold and silver stuffs, the gilding of books, furniture, &c. A considerable quantity, too, must be annually lost in transporting those metals from one place to another both by sea and by land. In the greater part of the governments of Asia, besides, the almost universal custom of concealing treasures in the bowels of the earth, of which the knowledge frequently dies with the person who makes the concealment, must occasion the loss of a still greater quantity. The quantity of gold and silver imported at both Cadiz and Lisbon (including not only what comes under register, but what may be supposed to be smuggled) amounts, according to the best accounts, to about six millions sterling a-year. According to Mr Meggens[20], the annual importation of the precious metals into Spain, at an average of six years, viz. from 1748 to 1753, both inclusive, and into Portugal, at an average of seven years, viz. from 1747 to 1753, both inclusive, amounted in silver to 1,101,107 pounds weight, and in gold to 49,940 pounds weight. The silver, at sixty-two shillings the pound troy, amounts to L.3,413,431 : 10s. sterling. The gold, at forty-four guineas and a half the pound troy, amounts to L.2,333,446 : 14s. sterling. Both together amount to L.5,746,878 : 4s. sterling. The account of what was imported under register, he assures us, is exact. He gives us the detail of the particular places from which the gold and silver were brought, and of the particular quantity of each metal, which, according to the register, each of them afforded. He makes an allowance, too, for the quantity of each metal which, he supposes, may have been smuggled. The great experience of this judicious merchant renders his opinion of considerable weight.