_Safety of banking._—In times of business prosperity a bank with usual business caution as to customers, is safe for all concerned. And yet, in the very nature of extended credit, it has promised to pay on any particular day, if demanded, far more than it has cash in hand. Its liabilities embrace the whole of its deposits except a small portion made for a definite time, and all its issues of currency subject to redemption. To meet these engagements its immediate resources are whatever currency in any form of coin or bills it may have at hand. This amount, since its profits are made from lending, not from holding, must be small in proportion to its liabilities. The bulk of its means of payment is in notes not yet due, and to be collected when due. Of other property it is likely to have bonds of municipalities or of great corporations, and these are supposed to be a more available form of resources than individual notes, because they usually have a definite market value and can be sold or used as security for loans in any money market. If real estate forms a part of the capital, it can never be made available for immediate use. Hence any bank dealing in mortgages on real estate invests its funds where they cannot be had when wanted. All banking schemes based upon security in land have necessarily failed, because land has no current use in trade. Under the pressure of panic, from whatever source, each depositor is sure to demand every cent due him from the bank, and just as certainly the bank’s own resources are insufficient to meet those dues without the sale of bonds and notes in other markets. For these reasons in any great period of distrust the banks are obliged to suspend payments. Since all the banks of the community are in similar circumstances they cannot help each other, and time must be given for the collection of loans, according to agreement, that the gradual accumulation of ready cash may return to the vault, and so to the depositors, all that has been loaned. Because of this necessary instability bankers watch most carefully the tendencies of the money market, and necessarily reduce their loans for safety when any anxious pressure begins. For the same reason legitimate banking is limited to short time loans—on demand, thirty, sixty, ninety days—the shorter being the safer. Laws sometimes prohibit a bank from dealing in any other business, where a stock of goods must tie up funds, or from speculation in real estate, which confines capital more certainly.