XIII. The Sutler for the prisoners is entirely under the control of the Commanding Officer, who will require him to furnish the prescribed articles, and at reasonable rates. For this privilege the Sutler will be taxed a small amount by the Commanding Officer, according to the amount of his trade, which tax will be placed in the hands of the Commissary to make part of the Prison Fund. XIV. All money in possession of prisoners, or received by them, will be taken charge of by the Commanding Officer, who will give receipts for it to those to whom it belongs. Sales will be made to prisoners by the Sutler on orders on the Commanding Officer, which orders will be kept as vouchers in the settlement of the individual accounts. The Commanding Officer will procure proper books in which to keep an account of all moneys deposited in his hands, these accounts to be always subject to inspection by the Commissary General of Prisoners, or other inspecting officer. When prisoners are transferred from the post, the moneys belonging to them, with a statement of the amount due each, will be sent with them, to be turned over by the officer in charge to the officer to whom the prisoners are delivered, who will give receipts for the money. When prisoners are paroled, their money will be returned to them. XV. All articles sent by friends to prisoners, if proper to be delivered, will be carefully distributed as the donors may request; such as are intended for the sick passing through the hands of the Surgeon, who will be responsible for their proper use. Contributions must be received by an officer, who will be held responsible that they are delivered to the person for whom they are intended. All uniform, clothing, boots, or equipments of any kind for military service, weapons of all kinds, and intoxicating liquors, including malt liquors, are among the contraband articles. The material for outer clothing should be gray, or some dark mixed color, and of inferior quality. Any excess of clothing, over what is required for immediate use, is contraband. XVI. When prisoners are seriously ill, their nearest relatives, being loyal, may be permitted to make them short visits; but under no other circumstances will visitors be admitted without the authority of the Commissary General of Prisoners. At those places where the guard is inside the enclosure, persons having official business to transact with the Commander or other officer will be admitted for such purposes, but will not be allowed to have any communication with the prisoners. XVII. Prisoners will be permitted to write and to receive letters, not to exceed one page of common letter paper each, provided the matter is strictly of a private nature. Such letters must be examined by a reliable non-commissioned officer, appointed for that purpose by the Commanding Officer, before they are forwarded or delivered to the prisoners.