Time proposed for the protection of a nation: 1793. 1851. Population 3,939,325 24,267,488 Imports £6,739,130 £38,723,545 Exports £5,675,869 £32,367,000 Tonnage 520,704 3,535,451 Lighthouses, beacons, and lightships 7 373 Cost of | | Jerseys, Pennsylvania, | | | | | |Number of engines. | | | | | | | | | | | Tennessee, Kentucky, | | | | | | Delaware, and Maryland | 3,503 | 27,952,500 | 2,020 | 7,979 | .