6 books
Nicaragua; Its People, Scenery, Monuments, and the Proposed Interoceanic Canal, with Numerous Original Maps and Illustrations
Antiquities of the State of New York; Being the Results of Extensive Original Surveys and Explorations, with a Supplement on the Antiquities of the West
Aboriginal Monuments of the State of New-York. Comprising the Results of Original Surveys and Explorations;
Nicaragua
Letters from Francis Parkman to E.G. Squier
Collection of Rare and Original Documents and Relations, Concerning the Discovery and Conquest of America, Chiefly from the Spanish Archives. No. 1