Personal narrative of travels to the equinoctial regions of the New Continent during the years 1799-1804 by Alexander de Humboldt and Aimé Bonpland [microform] /
Humboldt, Alexander von,1769-1859.
Bonpland, Aimé,1773-1858.
Philadelphia : M. Carey,
1815
Includes bibliographical references.
Sabin 33770
Microfiche.
Natural history
Voyages and travels.