"For the prevention of which for the future, it is hereby enacted by the authority aforesaid, that from and after the publication of this act, all masters of vessels that shall come into the harbor of Newport, or into any port of this government, that hath imported any negroes or Indian slaves, shall, before he puts on shore in any port of this government, or in the town of Newport, any negroes or Indian slaves, or suffers any negroes or Indian slaves to be put on shore by any person whatsoever, from on board his said vessel, deliver unto the naval officer in the town of Newport, a fair manifest under his hand, which shall specify the full number of negroes and Indian slaves he hath imported in his said vessel, of what sex, with their names, the names of their owners, or of those they are consigned to; to the truth of which manifest so given in, the said master shall give his corporal oath, or solemn engagement unto the said naval officer, who is hereby empowered to administer the same unto him, which said manifest being duly sworn unto, the said naval officer shall make a fair entry thereof in a book, which shall be prepared for that use, whereunto the said mister shall set his hand.... "And when the said master hath delivered his said manifest and sworn to it, as abovesaid, and before he hath landed on shore, or suffer to be landed, any negroes or Indian slaves as aforesaid, he, the said master, shall pay to the naval officer the sum of L3 current money, of New England, for each negro; and the sum of forty shillings of the like money for each Indian that shall be by him imported into this colony, or that shall be brought into this colony in the vessel whereof he is master. "But if he hath not ready money to pay down, as aforesaid, he shall then give unto the said naval officer a bill, as the law directs, to pay unto him the full sum above mentioned, for each and every negro and Indian imported as above said, which bill shall run payable in ten days from the entering the manifest as above said; and if at the end of the ten days, the said master shall refuse to pay the full contents of his bill, that then the said naval officer shall deliver the said bill unto the Governor, or in his absence, to the next officer of the peace, as aforesaid who shall immediately proceed with the said master in the manner above said, by committing of him to Her Majesty's jail, where he shall remain without bail or mainprize, until he hath paid unto the naval officer, for the use of this colony, double the sum specified in his said bill, and all charges that shall accrue thereby; which money shall be paid out by the said naval officer, as the General Assembly of this colony shall order the same.