Licence: Public Domain Mark
Credit: James Prescott Joule. Etching by C. H. Jeens, 1882. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0003138/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: James Prescott Joule. Etching by C. H. Jeens, 1882. Wellcome Collection. Source: Wellcome Collection.