A geognostical essay on the superposition of rocks, in both hemispheres / By Alexandre de Humboldt. Translated from the original French.

  • Alexander von Humboldt
Date:
1823

Licence: Public Domain Mark

Credit: A geognostical essay on the superposition of rocks, in both hemispheres / By Alexandre de Humboldt. Translated from the original French. Source: Wellcome Collection.

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