Bridges, Canals & Tunnels: The Engineering Conquest of America (The Smithsonian Library)

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159 pp. CONTENTS: Introduction; Heyday of the Canals; Timber Spans and Iron Horses; The Importance of Being Level; And Then Came Steel; The Suspension Spectacle; Portfolio: The Bro oklyn Bridge; A Great Time for Doing; In the Age of the Automobile; Appendix: Chronology, Mr. Beach's Pneumatic Secret, The Essentials of Bridge Building, Cause for Celebration, A History in Song, Further Reading, Index. Show more