The course of evolution: by differentiation or divergent mutation rather than by selection.
Cambridge: Cambridge University Press, 1940. Octavo, Publisher's cloth, labelled 'Author's copy' and author's inscription. John Christopher Willis (1868-1958) was an English botanist known for his Age and Area hypothesis (now very much out of favour) and criticism of natural selection; he was posthumously awarded the Darwin–Wallace Medal by the Linnean..... More