Licence: Public Domain Mark
Credit: Thomas Allen. Etching by J. Bretherton. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0000132/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Thomas Allen. Etching by J. Bretherton. Wellcome Collection. Source: Wellcome Collection.