"Thus it is that the volume of bank credits, whether in the form of deposits, checks or notes, responds in a rise or fall according as there is legitimate trade demand; and over this the bank has no control, except by ceasing to make loans. This is why deposits increase as loans increase, and these increase as the volume of business increases." Now, if we understand the real nature of these so-called deposits, the reason for their diminution is plain. Deposits fall because loaning stops. When you stop loaning, you stop creating credit. You can readily see that it is not a diminution of deposits in cash, but it is a contraction of credit, a refusal to make loans. This erroneous notion of the real meaning and nature of deposits in banking language may lead to very great mistakes in estimating the stability of a bank. That a bank's stability depends on a due proportion being kept between the deposits or the liabilities and the cash; and it may very well happen that while the deposits are apparently mounting high, and might lead many persons to believe that the actual quantity of cash was increased, it might be nothing, perhaps, but a dangerous extension of credit. And if this were carried too far, the bank might be in the most dangerous position just when it was apparently most flourishing. Now, let us consider how a banker who has purchased either money or notes from his customers by creating deposits or debts, may be used by his depositors. That is how the depositors may use these credits. Of course, every banker does business exactly in the same way, or practically so, and when their customers begin to use checks these different results may follow: _First_: The actual money may be drawn out. _Second_: The credit may be transferred to the account of another depositor of the same bank. _Third_: The check may be an order to pay another bank. But in this case, if the first bank is ordered to pay the second bank so much, the chances are that the second bank will be ordered to pay the first bank practically the same amount. If the claims of the two banks on each other were exactly equal, the respective checks or orders are interchanged, and the credits readjusted to the different customers' accounts accordingly, without any payment in money. If it should happen that the claims of all the banks against each other exactly balanced, any amount of business might be carried on, without requiring a single dollar of gold coin. If the mutual claims of the different banks against each other do not exactly balance, it is only necessary to pay the differences in coin. Now, exactly to the degree that banks are brought into a closer relationship with each other by such means, the smaller is the quantity of coin required to carry on the business of the country; or the more gigantic is the superstructure of credit which can be reared upon a given reserve.