During this period a relatively enormous quantity of banking capital had located itself in and near Wall Street. The Bank of New York existed before 1800, and later, although not long after, the Street witnessed the erection of buildings of a now obsolete, and yet at that time an attractive, style of architecture, devoted to the uses of the Manhattan Banking Company, the Bank of America, the Merchants, the Union, the Bank of Commerce, and others. Were it not that land in the banking district is so valuable, and that the need of upstair offices is so great, one might be tempted to regret the demolition of the graceful money temples occupied by three of these corporations on the north side of Wall Street. In each of them the entablature rested upon two fluted stone pillars with Doric capitals, in addition to the supports of the side walls. Between the steps and the doors of the temple extended a marble-paved court which often served as a convenient place of 'change for borrowers and lenders. Entering the doors you found yourself in a large, airy, dome-lighted room, the sides of which were occupied by the clerks of the institution, guarded by high barricades from the intrusive eyes and feet of the general public. At the rear were the offices of the president and cashier. Throughout the entire building there reigned a solemn and semi-religious silence. One may witness something like this to-day in the Wall-Street end of the U. S. Treasury Building, and only there. Up to the epoch of the rise of railway building and railway-share speculation, the main aliment of Wall-Street banks was the profit derived from the discount of commercial paper and from loans upon government and State securities. But when railway shares and bonds, based upon lines of road which were constructed through the rich regions of the Union lying between the Atlantic and the Mississippi river, came upon the market in large amounts, affording ample security for investment and loans, the great banks of Wall Street were quick to appreciate the advantages of loans made upon such undoubted values, which were at all times convertible into cash on the stock exchange. In times of pressure, commercial paper is an inferior asset for a bank, all of whose obligations are payable on demand. At such times notes become practically unsalable, and are not always paid at maturity. A failure of one firm brings down others, and renewals are urgently required from banks just when they are least able to grant them. Salable securities are on such occasions an ark of safety, and, dating from the early fifties, this class of securities has always been the basis of a large amount of the loans of the banks of Wall Street and their near neighbors of the same class in lower Nassau Street and also Broadway.