Title A gazetteer of the state of Pennsylvania. Part first ... general description of the state ... geological construction, canals and rail- roads, bridges, revenue, expenditures, public debt, &c. Part second ... counties, towns, cities, villages, mountains, lakes, rivers, creeks, &c., alphabetically arranged. By Thomas F. Gordon. To which is added a table of all the post offices in the state, their distances from Washington and Harrisburg, and the names of the post masters.