Licence: Public Domain Mark
Credit: R.G. Sheldon. Drawing by W. Rattray, 1866. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0018058/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: R.G. Sheldon. Drawing by W. Rattray, 1866. Wellcome Collection. Source: Wellcome Collection.