Here it may be urged, that the great use of banks is to multiply circulation, and to furnish the industrious with the means of carrying on their traffic: that if banks insist upon the most solid sureties before they give credit, the great utility of them must cease; because merchants and manufacturers are never in a situation to obtain credit upon such terms.

This argument only proves, that banks are not, alone, sufficient for carrying on every branch of circulation. A truth which no body will contravert. But as they are of use in carrying on the great branches of circulation, it is proper to prevent them from engaging in schemes which may destroy their credit altogether.

I have observed above, that this method of issuing notes upon private security, was peculiarly well adapted to countries like Scotland, where trade and industry are in their infancy.

Merchants and manufacturers there, have constant occasion for money or credit; and at the same time, they cannot be supposed to have either real or personal estates to pledge, in order to obtain a loan directly from the banks, who ought to lend upon no other security.

To remove that difficulty, we find a set of merchants, men of substance, who obtain from the banks very extensive credits upon the joint real and personal security of themselves and friends. With this assistance from the bank, and with money borrowed from private people, repayable on demand, something below the common rate of interest, they support the trade of Scotland, by giving credit to the merchants and manufacturers.

To this set of men, therefore, are banks of circulation upon mortgage to leave that particular branch of business. It is their duty, it is the interest of the country, and no less that of banks, that they be supported in so useful a trade; a trade which animates all the commerce and manufactures of Scotland, and which consequently promotes the circulation of those very notes upon which the profits of the banks do arise.

These merchants are settled in all the most considerable towns: they are well acquainted with the stock, capacity, industry, and integrity of all the dealers in their district: they are many; and by this are able to go through all the detail which their business requires; and their profits, as we shall see presently, are greater than those of banks, who lend at a stated interest.

The common denomination by which they are called in Scotland, is that of bankers; but to avoid their being confounded with bankers in England (whose business is very different) we shall, while we are treating of the doctrine of banks, call them by the name of exchangers, since their trade is principally carried on by bills of exchange.

As often as these exchangers give credit to dealers in any way, they constantly state a commission of ½ per cent. or more, according to circumstances, over and above the interest of their advance; profits[advance; profits] which greatly surpass those of any bank. One thousand pounds credit given by a bank, may not produce ten pounds in a year for interest: if given by a banker, to a merchant, who draws it out, and replaces it forty times in a year, there will arise upon it a commission of 20 per cent. or 200l.

This set of men are exposed to risks and losses, which they bear without complaint, because of their great profits; but it implies a detail, which no bank can descend to.