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 | | | |Number of engines. | | Illinois, Missouri, | | Atlantic States, | | including Virginia, the | | | | | |cylinder. | |Length. | |Length of stroke. | | |Diameter of wheels. The guard strained the.