Cosmos, sketch of a physical description of the universe / By Alexander von Humboldt. Translated [by Mrs. E.J. Sabine] under the superintendence of Lieut.-Col. Edward Sabine [the editor].

Licence: Public Domain Mark

Credit: Cosmos, sketch of a physical description of the universe / By Alexander von Humboldt. Translated [by Mrs. E.J. Sabine] under the superintendence of Lieut.-Col. Edward Sabine [the editor]. Source: Wellcome Collection.