| http://www.w3.org/ns/prov#value | - And by the act of the 3d of March, 1819, the President is authorised to employ any of the armed vessels of the United States, to cruise in such places as he may think proper, where he may judge attempts may be made to carry on the slave trade by citizens, or residents of the United States, in contravention of the acts of Congress prohibiting the same; and to instruct such armed vessels to seize, t
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