Philadelphia: John C. Clark, Printer, 1852. 8vo; 36 pp., 4 plates (1 folding). First edition. Original brown paperwraps, heavily chipped at edges, still a very good copy. Item #57577
Charles Ellet, Jr. (1810- 1862) was a civil engineer and a colonel during the Civil War, mortally wounded at the Battle of Memphis. Ellet studied civil engineering in Paris, and in 1842 he designed and built the first major wire-cable suspension bridge in the United States, which spanned 358 feet over the Schuylkill River at Fairmount, Philadelphia. He designed the record-breaking Wheeling suspension bridge over the Ohio River at Wheeling, West Virginia, as well as a 770-foot suspension footbridge at Niagara Falls. The proposed bridge over the Potomac, however, was never built.