John Mellanby. Photograph by J. Russell & Sons.
Licence: Public Domain Mark
Credit: John Mellanby. Photograph by J. Russell & Sons. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/M0016636/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: John Mellanby. Photograph by J. Russell & Sons. Wellcome Collection. Source: Wellcome Collection.