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Report on the Geological Survey of the State of Iowa: Part 1

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Report on the Geological Survey of the State of Iowa: Embracing the Results of Investigations Made During Portions of the Years 1855, 56 & 57. Palaeontology, Volume 2

Report on the Geological Survey of the State of Iowa: Volume 1, Part 2

Contributions to the Palæontology of Iowa: Being Descriptions of New Species of Crinoidea and Other Fossils

Report on the Geological Survey of the State of Iowa: Volume 1, Part 2

Report on the Geological Survey of the State of Iowa: Volume 1, Part 2

The Self-Portrait: A Cultural History

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Events in the early history of Kentucky. Military operations in the North-western territory. Civil institutions in the territories and new states