Reports of the trials of Colonel Aaron Burr (late vice president of the United States,) for treason, and for a misdemeanor : in preparing the means of a military expedition against Mexico, a territory of the King of Spain, with whom the United States were at peace ; in the Circuit Court of the United States, held at the city of Richmond, in the district of Virginia, in the summer term of the year 1807 / taken in short hand by David Robertson.