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Foreword
Acknowledgments
Introduction
Key to abbreviations
Bibliographer's Note

Expeditions

1803-1835

1836-1844

1845-1849

1850-1855

1856-1860

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• Bryan, 1856
• Warren's, 1856
• Ark.G.S., 1856
• Ives, 1857
• Michler, 1857
• NW Bdy. Surv., 1857
• Mullan, 1858
• Simpson, 1858
• Tex.G.S., 1858
• Macomb, 1859
• Minn.G.S., 1859
• Raynolds, 1859
• Hall, 1860
• Hayes, 1860
• Isthmus of Chiriqui, 1860

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Subject index

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