At a given signal from the manager the (say) 60 bank messengers, each standing in front of the desk of his own bank and each having in hand before him 59 small parcels of papers, the parcels arranged in the same definite order as the desks around the room, step forward to the next desk and deliver each his parcel to the clerk sitting behind it, and so on till the circuit of the room is made. It takes but ten minutes. Each parcel is made up of cheques or credit-claims, the _property_ of the bank that brings it and the _debts_ of the bank to which it is delivered. Accordingly each bank of the circle receives through its sitting clerk its own _debits_ to all the rest of the banks, and delivers to all through its standing messenger its own _credits_ as off-set. In other words, each bank buys of the rest what it owes to each with what each owes to it. It is at bottom a mutual buying and selling of debts. There is of course a daily balance on one side or the other between every two of these banks, which must be settled in money, because it would never happen in practice that each should owe the other precisely the same sum on any one day; but substantially and almost exclusively the exchange at the Clearing-House is a simple trade in credit-claims. Each bank pays its debts by credits. A merchant is a dealer in commodities, a laborer is a dealer in services, and a banker is a dealer in credits. Each of the three is a buyer and seller alike, and the difference is only in the kind of valuables specially dealt in by each. In all cases alike, however, there is no buying without selling and no selling without buying; because, when one buys he must always pay for what he buys and that is selling, and when one sells he must always take his pay for what he sells and that is buying. This is just as true when one credit is bought or sold against a commodity or a service, and when two or more credits are bought and sold as against each other, as it is when two commodities or two services are exchanged one for the other. But the Clearing-House is not by any means the only place where credits or debts (they are the same thing) are bought and sold. Every bank is such a place. Every broker's office is such a place. Every place is an establishment of the same kind where commercial rights, that is, claims to be realized in future time and for which a consideration is paid, are offered for sale and sold. The amount of transactions in Credits in every commercial country undoubtedly surpasses the amount in Commodities or that in Services.