A special effort should be made to have the system so arranged that it will enable the mail-order department, as well as every other department in connection with the house, to know how many orders are partly bought and holding for goods which have been ordered that are not in stock, or that require to be made. The buyer who finds anything asked for on an order which a department cannot supply at once (and no checks should be taken unless the order can be filled promptly) should give someone appointed by each department full particulars of what is required, the number of the order, name of customer, description, size, or measurements of goods to be made or procured. When everything is bought, with these exceptions, the order should be then handed to a special mail-order clerk, who should note what is lacking to complete the order, and in a set of special department files (space being provided for each department) should place the holding order. He should visit the different departments, ascertaining particulars concerning each order, find out what efforts are being made to fill the same, and crowd these orders to completion, where necessary, writing customers explaining any cause of delay. As each department secures the goods required, the mail order department should be notified immediately, when the order may be quickly produced from its department file, check made out and order completed. It is easy to ascertain at any time through such a system exactly what goods each department lacks, and direct such efforts as will provide for the least possible lack of stock and the least possible delay in executing orders.