Report of the case of Edward Prigg against the Commonwealth of Pennsylvania, argued and adjudged in the Supreme Court of the United States, at January term, 1842 : in which it was decided that all the laws of the several states relative to fugitive slaves are unconstitutional and void, and that Congress have the exclusive power of legislation on the subject of fugitive slaves escaping into other states / by Richard Peters, reporter of the decisions of the Supreme Court of the United States.