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1861 Profile of the Route from the Big Sandy … Exploration Book Profile of the Route from the Big Sandy … |
1861 Letter to the Officer in Charge of the O … Exploration Book Letter to the Officer in Charge of the O … |
1861 Letter to the Officer in Charge of the O … Exploration Book Letter to the Officer in Charge of the O … |
1861 Appendix D. Remarks upon the Constructio … Exploration Book Appendix D. Remarks upon the Constructio … |
1877 LXX (explanation) Exploration Book Plate LXX (explanation). (1877) |