Representing Counties in Virginia, Maryland, Ohio, Pennsylvania, and the District of Columbia, Held in the City of Washington, on Thursday, Friday, and Saturday, the 6th, 7th, and 8th, of Nov. 1823, on the Subject of the Chesapeake & Ohio Canal ; to which are Added, an Extract from the Report of the Commissioners Appointed by the States of Virginia and Maryland to Survey the Potomac Canal, and an Act of Virginia Incorporating the Potomac Canal Company