days before the bill of exchange is due in London the New York bank collects the amount from A, together with the commission agreed upon when the credit was opened, and remits the amount to its London banker to meet the draft. On all such transactions the London banker, while not himself advancing any money, is extending a credit for which he charges the New York bank a commission. The result is that we are paying tribute to European bankers amounting to an immense sum annually for the purpose of financing our imports. The fact that London exchange is more marketable generally throughout the world than New York exchange is one of the principal reasons why it is necessary for us to issue credits upon London instead of upon New York. Our imports are distributed generally throughout the United States. The importers, however, are mostly situated at the ports of entry. A very large proportion of them obtain their credits through New York institutions, although some of them deal direct with foreign bankers. Probably a smaller proportion of our exports is financed by means of commercial letters of credit than of our imports. Different commodities are handled in accordance with special customs which have grown up around them, due partly to trade conditions and partly to the nature of the products. Sellers of grain usually draw at sixty days' sight upon the foreign buyer instead of under a bank credit. These bills, under the customs prevailing in most foreign countries, may be rebated by the foreign buyer whenever he desires to obtain the goods at the "bank rate" or 1 per cent. under the bank rate, or such other rate as custom in the country on which the drafts are drawn requires. Such drafts, with bills of lading and such other documents as are necessary, are purchased by American banks and are forwarded by them to their European correspondents. The American banker is obliged to advance the money on such paper, unless he draws his own time bills against them, until such time as they are rebated. In the case of grain bills the average time rebated is probably around fifty-six days, which places the American bank in possession of demand foreign exchange, against which it can draw in order to reimburse itself with the loss of a very few days' interest.