Sir Joseph Dalton Hooker, head and shoulders, oval.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Sir Joseph Dalton Hooker, head and shoulders, oval. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Sir Joseph Dalton Hooker, head and shoulders, oval. Wellcome Collection. Source: Wellcome Collection.