Licence: Public Domain Mark
Credit: Sir Edwin Ray Lankester. Photograph by Elliott & Fry Ltd, 1918. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0026676/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Sir Edwin Ray Lankester. Photograph by Elliott & Fry Ltd, 1918. Wellcome Collection. Source: Wellcome Collection.