Ernst Heinrich Philipp August Haeckel. Photogravure after F. Haack.
- Reference:
- 12852i
Licence: Public Domain Mark
Credit: Ernst Heinrich Philipp August Haeckel. Photogravure after F. Haack. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: Ernst Heinrich Philipp August Haeckel. Photogravure after F. Haack. Wellcome Collection. Source: Wellcome Collection.