Title: Delaware River, Pennsylvania, New Jersey, and Delaware. Letter from the Secretary of War transmitting report from the Chief of Engineers on preliminary examination and survey of Delaware River, Pennsylvania, New Jersey, and Delaware, with a view to deepening the channel between Allegheny Avenue, Philadelphia, and the sea to a depth of 40 feet, with suitable widths
Subjects: Topographical surveying
Places: Delaware River (N.Y.-Del. and N.J.)