The Wealth of Nations by Part 4 Chapter 3 Page 31

of bullion obtains both a bank credit and receipt, pays his bills of exchange as they become due with his bank credit; and either sells or keeps his receipt according as he judges that the price of bullion is likely to rise or to fall. The receipt and the bank credit seldom keep long together, and there is no occasion that they should. The person who has a receipt, and who wants to take out bullion, finds always plenty of bank credits, or bank money to buy at the ordinary price; and the person who has bank money, and wants to take out bullion, finds receipts always in equal abundance.

The owners of bank credits, and the holders of receipts, constitute two different sorts of creditors against the bank. The holder of a receipt cannot draw out the bullion for which it is granted, without reassigning to the bank a sum of bank