The Navigation Act (1651), printed in Henry Scobell, A Collection of Acts and Ordinances of General Use, Made in Parliament… in Two Parts (London, 1658), 2: 176

For the increase of the shipping and the encouragement of the navigation of this nation, which under the good providence and protection of God is so great a means of the welfare and safety of this Commonwealth: be it enacted by this present Parliament, and the authority thereof, that from and after the first day of December, one thousand six hundred fifty and one, and from thence forwards, no goods or commodities whatsoever of the growth, production or manufacture of Asia, Africa or America, or of any part thereof; or of any islands belonging to them, or which are described or laid down in the usual maps or cards of those places, as well of the English plantations as others, shall be imported or brought into this Commonwealth of England, or into Ireland, or any other lands, islands, plantations, or territories to this Commonwealth belonging, or in their possession, in any other ship or ships, vessel or vessels whatsoever, but only in such as do truly and without fraud belong only to the people of this Commonwealth, or the plantations thereof, as the proprietors or right owners thereof; and whereof the master and mariners are also for the most part of them of the people of this Commonwealth, under the penalty of the forfeiture and loss of all the goods that shall be imported contrary to this act; as also of the ship (with all her tackle, guns and apparel) in which the said goods or commodities shall be so brought in and imported; the one moiety to the use of the Commonwealth, and the other moiety to the use and behoof of any person or persons who shall seize the goods or commodities, and shall prosecute the same in any court of record within this Commonwealth.