On Measurements as a Diagnostic Means for Distinguishing the Human Races.

Narrative of the Circumnavigation of the Globe by the Austrian frigate Novara, ... undertaken by order of the Imperial Government, in the years 1857, 1858, and 1859, etc. (Physical and geognostic suggestions by A. von Humboldt.).

Narrative of the Circumnavigation of the Globe by the Austrian frigate Novara, ... undertaken by order of the Imperial Government, in the years 1857, 1858, and 1859, etc. (Physical and geognostic suggestions by A. von Humboldt.).

Narrative of the Circumnavigation of the Globe by the Austrian frigate Novara, ... undertaken by order of the Imperial Government, in the years 1857, 1858, and 1859, etc. (Physical and geognostic suggestions by A. von Humboldt.). Vol. I.

Travels in the Free States of Central America: Nicaragua, Honduras, and San Salvador.

Travels in the Free States of Central America

Nicaragua, Honduras, and San Salvador. Vol. II.

Historias del Origen de los Indios de Guate mala, traducidas de la lengua guich� al castellano exactamente segun el texto espa�ol del manuscrits original publicado por la primera vez y aumentado con una introduccion y anotaciones por C. Scherzer.

Reise Der O Sterreichischen Fregatte Novara Um Die Erde in Den Jahren 1857-1859 Unter Den Befehlen Des Commodore B. Von Wu Llerstorf-Urbair. (Physikalische Und Geognostische Erinnerungen Von A. V. Humboldt.)

On Measurements as a Diagnostic Means for Distinguishing the Human Races.

Narrative of the Circumnavigation of the Globe by the Austrian frigate Novara, ... undertaken by order of the Imperial Government, in the years 1857, 1858, and 1859, etc. (Physical and geognostic suggestions by A. von Humboldt.).

Narrative of the Circumnavigation of the Globe by the Austrian frigate Novara, ... undertaken by order of the Imperial Government, in the years 1857, 1858, and 1859, etc. (Physical and geognostic suggestions by A. von Humboldt.).

Narrative of the Circumnavigation of the Globe by the Austrian frigate Novara, ... undertaken by order of the Imperial Government, in the years 1857, 1858, and 1859, etc. (Physical and geognostic suggestions by A. von Humboldt.). Vol. I.

Travels in the Free States of Central America: Nicaragua, Honduras, and San Salvador.

Travels in the Free States of Central America

Nicaragua, Honduras, and San Salvador. Vol. II.

Historias del Origen de los Indios de Guate mala, traducidas de la lengua guich� al castellano exactamente segun el texto espa�ol del manuscrits original publicado por la primera vez y aumentado con una introduccion y anotaciones por C. Scherzer.

Reise Der O Sterreichischen Fregatte Novara Um Die Erde in Den Jahren 1857-1859 Unter Den Befehlen Des Commodore B. Von Wu Llerstorf-Urbair. (Physikalische Und Geognostische Erinnerungen Von A. V. Humboldt.)