It shall be lawful for all collectors, naval officers, surveyors, inspectors, and the officers of the revenue-cutters, to go on board of vessels in any port of the United States, or within four leagues of the coast thereof, if bound to the United States, whether in or out of their respective districts, for the purpose of demanding the manifests, and of examining and searching the vessels; and those officers respectively shall have free access to the cabin and every part of a vessel. (R. S., 3067.) If any master of a vessel coming into or having arrived at any port within the United States, shall obstruct or hinder or shall intentionally cause any obstructions or hindrance to any officer in lawfully going on board such vessel for the purpose of carrying into effect any of the revenue laws of the United States, he shall for every such offense be liable to a penalty of not more than five hundred dollars nor less than fifty dollars. (R. S., 3068.) If any box, trunk, chest, cask, or other package shall be found in the cabin, steerage, or forecastle of a vessel, or in any other place separate from the residue of the cargo, the officer of the customs shall take a particular account of such package, and of the marks and numbers thereof, if any, and a description thereof, and, if he judges proper, shall seal every such package; and such account and description shall be by him forwarded without delay to the collector of the district to which such vessel is bound. If upon her arrival at the port of her entry, the packages so described, or any of them, are missing, or if any seal put thereon has been broken, the master shall be liable to a penalty for every package missing, or on which any seal shall be broken, of two hundred dollars. (R. S., 3069.) CHAPTER IV ENTRY OF MERCHANDISE Inward manifests. No merchandise shall be brought into the United States, from any foreign port, in any vessel unless the master has on board manifests in writing of the cargo, signed by such master. (R. S., 2806.) Every manifest required by the preceding section shall contain: _First._ The name of the ports where the merchandise in such manifest mentioned were taken on board, and the ports within the United States for which the same are destined; particularly noting the merchandise destined for each port respectively. (R. S., 2807.) _Provided, however_, That the master of a vessel laden exclusively either with sugar, coal, salt, hides, dyewoods, wool, or jute butts, consigned to one consignee, arriving at a port for orders, may be permitted to destine such cargo or determine its disposition "for orders," upon entering the vessel at the custom-house, and, within fifteen days afterward and before the unloading of any part of the cargo, to amend the manifest by designating the actual port of discharge of such cargo: