However, before starting on a tour round the shops, he wanted to go up to the postal order department, which occupied several rooms on the second floor. It was there that all the provincial and foreign orders arrived; and he went up every morning to see the correspondence. For two years this correspondence had been increasing daily. At first occupying only a dozen clerks, it now required more than thirty. Some opened the letters and others read them, seated on either side of the same table; others again classified them, giving each one a running number, which was repeated on a pigeon-hole. Then when the letters had been distributed to the different departments and the latter had delivered the articles ordered, these articles were placed in the pigeon-holes as they arrived, in accordance with running numbers. Nothing then remained but to check and pack them, which was done in a neighbouring room by a squad of workmen who were nailing and tying up from morning to night. Mouret put his usual question: "How many letters this morning, Levasseur?" "Five hundred and thirty-four, sir," replied the chief clerk. "After the new sale has begun on Monday, I'm afraid we sha'n't have enough hands. Yesterday we were driven very hard." Bourdoncle expressed his satisfaction by a nod of the head. He had not reckoned on five hundred and thirty-four letters arriving on a Tuesday. Round the table, the clerks continued opening and reading the letters, the paper rustling all the time, whilst before the pigeon-holes the various articles ordered began to arrive. This was one of the most complicated and important departments of the establishment, and the rush was continual, for, strictly speaking, all the orders received in the morning ought to be sent off the same evening. "You shall have whatever more hands you want," replied Mouret, who had seen at a glance that the work of the department was well done. "When there's work," he added, "we never refuse the men." Up above, under the roof, were the bedrooms occupied by the saleswomen. However, Mouret went downstairs again and entered the chief cash office, which was near his own. It was a room with a glazed partition in which was a metal-work wicket, and it contained an enormous safe, fixed in the wall. Two cashiers here centralised the receipts which Lhomme, the chief cashier of the sales' service, brought in every evening; and with these receipts they discharged the current expenses, paid the manufacturers, the staff, all the people indeed who lived by the house. Their office communicated with another, full of green cardboard boxes, where some ten clerks checked the innumerable invoices. Then came yet a third office, the clearing-house, so to say, where six young men bending over black desks, with quite a collection of registers behind them, made up the commission accounts of the salesmen, by checking the debit notes. This department but recently organized did not as yet work particularly well.