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1866 No.V. Map of the Isthmus between Chagres … Survey Book No.V. Map of the Isthmus between Chagres … |
1866 No.VI. Central america. Panama rail road Survey Book No.VI. Panama rail road : Central Americ … |
1866 No.VII. Map and profile of the route for … Survey Book No.VII. Map and profile of the route for … |
1866 No.VIII. Isthmus of Darien Survey Book No.VIII. Isthmus of Darien. Map showing … |