Friedrich Heinrich Alexander von Humboldt. Photograph by Gustav Schauer.
- Reference:
- 12946i
Licence: Public Domain Mark
Credit: Friedrich Heinrich Alexander von Humboldt. Photograph by Gustav Schauer. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0026586/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Friedrich Heinrich Alexander von Humboldt. Photograph by Gustav Schauer. Wellcome Collection. Source: Wellcome Collection.