Licence: Public Domain Mark
Credit: Sir Humphry Davy Rolleston. Photograph by J. Russell & Sons, 1916. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0027095/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Sir Humphry Davy Rolleston. Photograph by J. Russell & Sons, 1916. Wellcome Collection. Source: Wellcome Collection.