Whenever it is made to appear to the satisfaction of the collector, naval officer, and surveyor, or to the major part of them, where those officers are established at any port, or to the satisfaction of the collector alone, where either of the other of the officers is not established, or to the satisfaction of the court in which a trial shall be had concerning such forfeiture, that no part of the cargo of any vessel without proper manifest was unshipped, after it was taken on board, except such as shall have been particularly specified and accounted for in the report of the master, and that the manifests have been lost or mislaid, without fraud or collusion, or were defaced by accident, or became incorrect by mistake, no forfeiture or penalty shall be incurred under the preceding section. (R. S., 2810.) Ports of entry. It shall not be lawful to make entry of any vessel which shall arrive within the United States, from any foreign port, or of the cargo on board such vessel, elsewhere than at one of the ports of entry designated in chapter one [R. S., 2517-2612] of this Title [R. S., 2517-3129]; nor to unlade the cargo, or any part thereof, elsewhere than at one of the ports of delivery therein designated, except that every port of entry shall be also a port of delivery. This section shall not prevent the master or commander of any vessel from making entry with the collector of any district in which such vessel may be owned, or from which she may have sailed on the voyage from which she shall then have returned. (R. S., 2770.) Vessels bound to port of delivery. The master of every vessel bound to a port of delivery only, in any district, shall first come to at the port of entry of such district, with his vessel, and there make report and entry in writing, and pay all duties required by law, port fees and charges, before such vessel shall proceed to her port of delivery. Any master of a vessel who shall proceed to a port of delivery contrary to such directions shall be liable to a penalty of five hundred dollars, to be recovered with costs of suit. (R. S., 2772.) Report and declaration of master.