Naval Officers are required to pay their mess bills in advance. The mess treasurer takes care of the receipts and expenditures and the management of the mess. The mess chooses him by election every month. When assigned to a mess you are an honorary member. Consult the mess treasurer as to when he will receive payment for mess bills. Your meals are served by stewards who in addition, clean your room, make up your bunk, shine your shoes. This is their regular work for which they draw the pay of their rating. They are not tipped. The Cigar Mess is the successor of the old Wine Mess. You may make purchases from this mess, for example, of cigarettes, cigars, pipe tobacco and candies. The cigar mess treasurer will make out your bill at the end of the month or before your detachment. Before you are detached be sure that the mess treasurer and the cigar mess treasurer have sufficient warning to make out your bills before you leave. Once a ship has sailed, long delays usually occur before your remittances can overtake it. The unpaid mess bill on board is a more serious breach of propriety than the unpaid club bill ashore because of the greater inconvenience and delay in settlement. Passenger officers should call on the captain of the ship. If there are many, they should choose a calling committee and consult the executive officer as to a convenient time to call. The latter will make arrangements with the captain. Gun salutes in the Navy are the same as in the Army, except that flag officers below the rank of fleet admiral or general of the Army are, by Navy regulations, given a gun salute upon departure only. By Army regulations gun salutes for the same officers are fired only on arrival. The rules governing saluting, whether saluting other individuals or paying honor to the color or National Anthem, are the same for the Air Force as in the Army, with the minor exceptions already noted. Because a most frequent contact between the Air Force and the other services comes of the operations of air transport, an officer should know what is expected of him when he travels as a passenger in military aircraft. It is assumed that the majority of officers visiting an Air Force base will arrive by air at the local military airfield. In addition to the Base Operations Officer, who is the commander's staff officer with jurisdiction over air traffic arriving and departing, the Airdrome Officer is charged with meeting all transient aircraft, determining their transportation requirements, and directing them to the various base facilities. General officers and admirals will usually be met by the Base Commander if practicable. RON (Remaining Over Night) messages may be transmitted through Base Operations at the same time the arrival notice is filed.