Christian Gottfried Ehrenberg (1795-1876)
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Christian Gottfried Ehrenberg (1795-1876). Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Christian Gottfried Ehrenberg (1795-1876). Wellcome Collection. Source: Wellcome Collection.