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Trains and Technology
The American Railroad in the Nineteenth Century
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This series of four lavishly illustrated volumes provides a thorough grounding in the maturation of the American railroad through an exposition of railroad technology in an age of unprecedented technological expansion. Vol. 4: Bridges and Tunnels, Signals is an exposition of the various types of bridges, their foundations, and the materials of which they were made. Tunnels, marine railroad operations, and the development of the signal systems is also fully covered here.
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