Table illustrating the 'laws of variation', a fold out illustration after p.168, Chapter V of The Origin of the Species, by Charles Darwin, Imp: London: John Murray, 1859

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Table illustrating the 'laws of variation', a fold out illustration after p.168, Chapter V of The Origin of the Species, by Charles Darwin, Imp: London: John Murray, 1859. Wellcome Collection. Source: Wellcome Collection.