thence to any other port or place within or without the said limits
should, directly or indirectly, be unladen or landed or put on shore at
any port or place in the United States of America eastward of Boston,
in the State of Massachusetts, nor unladen or put on board any American
ship, vessel, boat, or shallop of any description at any port or place
eastward of Boston aforesaid, under the penalty of the forfeiture of
every such ship or vessel from which any such plaster of paris, or
gypsum, should be unladen contrary to the provision of the said act,
together with her boats, tackle, apparel, and furniture, to be seized
and prosecuted in the manner thereinafter mentioned;" and

Whereas by an act of the Congress of the United States passed on the
3d day of March, 1817, it was enacted that from and after the 4th day
of July then next no plaster of paris the production of any country or
its dependencies from which the vessels of the United States were not
permitted to bring the same article should be imported into the United
States in any foreign vessel, and that all plaster of paris imported or
attempted to be imported into the United States contrary to the true
intent and meaning of the said act of Congress, and the vessel in which
the same might be imported or attempted to be imported, together with
the cargo, tackle, apparel, and furniture, should be forfeited to the
United States and liable to be seized, prosecuted, and condemned in the
manner therein prescribed; and

Whereas by the said act of Congress it was further enacted that the
same should continue and be in force five years from January 31, 1817;
provided, nevertheless, that if any foreign nation or its dependencies
which at the time of the passage of the said act of Congress had in
force regulations on the subject of the trade in plaster of paris
prohibiting the exportation thereof to certain ports of the United