Totals | 4,694 | 2,189 | 2,505 | | | | | |revolutions. | | | | | |Depth of | | | Carolinas, Georgia, | | | | | | | Illinois, Missouri, | | | | | | | |Depth of | | | | | | | | | | | |revolutions. | | | | | | | | | | | |of | | | | | | | | | |Depth of | | | | | | | | | | | Per mile | Per mile | Per mile | Per cent.