Galvanism: 25 figures illustrating experiments and instruments, including the galvanism of a frog's legs and a cow's head, as discovered by Luigi Galvani. Engraving, 1790/1820?.

Licence: Public Domain Mark

Credit: Galvanism: 25 figures illustrating experiments and instruments, including the galvanism of a frog's legs and a cow's head, as discovered by Luigi Galvani. Engraving, 1790/1820?. Wellcome Collection. Source: Wellcome Collection.