Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Sir Humphry Davy. Stipple engraving, 1824. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Sir Humphry Davy. Stipple engraving, 1824. Wellcome Collection. Source: Wellcome Collection.