Section XII. And it is hereby enacted, in modification of Section XVIII. of the Act XIV. of 1836, that when Goods

XII. And it is hereby enacted, in modification of Section XVIII. of the Act XIV. of 1836, that when Goods shall be shipped after Port Clearance, if the same be imported Goods entitled to Drawback, such Drawback shall be forfeited, but no separate duty shall be levied thereon.