Harper's Ferry Water Power

1847 Scientific American  
There an' in England seven different rail roads constructed on the wide guage principle; -the rails being laid 7 feet apart. These are the Great Western, 118 miles; Cheltenham branch, 42 miles ; Oxford branch, 10' ; Bristol and Exeter, 76, and Bristol and Gloucester,
doi:10.1038/scientificamerican01231847-141k fatcat:i5bmkefoqfauva7kht5rclyhb4