Honduras: Descriptive, Historical, and Statistical

Waikna; Or, Adventures on the Mosquito Shore

Peru. Incidents of Travel and Exploration in the Land of the Incas

Tropical Fibres: Their Production and Economic Extraction

Adventures on the Mosquito Shore

Notes on Central America: Particularly the States of Honduras and San Salvador: Their Geography, Topography, Climate, Population, Resources, Productions, Etc., Etc., and the Proposed Honduras Inter-oceanic Railway

Observations on the Aboriginal Monuments of the Mississippi Valley: The Character of the Ancient Earth-works, and the Structure, Contents, and Purposes of the Mounds; with Notices of the Minor Remains of Ancient Art

Nicaragua: Its People, Scenery, Monuments, Resources, Condition, and Proposed Canal

Peru: Incidents of Travel and Exploration in the Land of the Incas

Lecture on the Condition and True Interests of the Laboring Class of America

The States of Central America: Their Geography, Topography, Climate, Population, Resources, Productions, Commerce, Political Organization, Aborigines, Etc., Etc. ...

Travels in Central America, Particularly in Nicaragua: With a Description of Its Aboriginal Monuments, Scenery and People, Their Languages, Institutions, Religion, &c, Volume 1

Notes on Central America; particularly the states of Honduras and San Salvador ... and the proposed Honduras interoceanic railway: Volume 35

Monograph of Authors who Have Written on the Languages of Central America: And Collected Vocabularies Or Composed Works in the Native Dialects of that Country

The Serpent Symbol, and the Worship of the Reciprocal Principles of Nature in America

Notes on Central America ; Particularly the States of Honduras and San Salvador: Their Geography, Topography, Climate, Population, Resources, Productions, Etc. Etc....

Observations on the Geography and Archaeology of Peru

Honduras and Guatemala

Waikna: Or, Adventures on the Mosquito Shore

Nicaragua; Its People, Scenery, Monuments, and the Proposed Interoceanic Canal: Volume 2