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 | | | |Number | |bucket. ---------------+----+-----+----+--------+---+---+--------+----+----+-------- | ft.| ft. | ft.| ft.| ft.|ft.| | in.| ft.| | | Jerseys, Pennsylvania, | | | | | | | Tennessee, Kentucky, | | | |Length of deck. | |Breadth of beam. | | | | | |Length of | | | Per mile | per annum |of railway| run by | on | per annum |of railway| run by | on | per annum |of railway.