Includes bibliographical references (p. 227-233) and index.
Contents:
Explorations: 1781 to the Civil War -- Discovery and ascendancy: The Civil War to 1910 -- Triumph: The 1910s to World War II -- Endurance: World War II to the present.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.