The Wealth of Nations by Part 2 Chapter 2 Page 39

the Bank of Scotland, which had then no rival, was considerable, it seems to have made but a very small part of the whole.

In the present times the whole circulation of Scotland cannot be estimated at less than two millions, of which that part which consists in gold and silver most probably does not amount to half a million. But though the circulating gold and silver of Scotland have suffered so great a diminution during this period, its real riches and prosperity do not appear to have suffered any. Its agriculture, manufactures, and trade, on the contrary, the annual produce of its land and labour, have evidently been augmented.

It is chiefly by discounting bills of exchange, that is, by advancing money upon them before they are due, that the greater part of banks and bankers issue