Portrait of Sir John MacAlister [1856 - 1925], Secretary and librarian of the Royal Society of Medicine, London, holding a pipe.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Portrait of Sir John MacAlister [1856 - 1925], Secretary and librarian of the Royal Society of Medicine, London, holding a pipe. Wellcome Collection. Source: Wellcome Collection.