ARTICLE XVI
The present treaty shall be ratified in due form, by the contracting parties, and the ratifications shall be exchanged in six months from this time, or sooner if possible.
In witness whereof we, the underwritten Plenipotentiaries of the United States of America and of His Catholic Majesty, have signed, by virtue of our powers, the present treaty of amity, settlement, and limits, and have thereunto affixed our seals, respectively.
Done at Washington this twenty-second day of February, one thousand eight hundred and nineteen.
JOHN QUINCY ADAMS (L. S.)
LUIS DE ONIS(L. S.)