The nature of man : studies in human optimism / by Élie Metchnikoff ; the English translation edited by Sir P. Chalmers Mitchell ; revised and brought up to date by C.M. Beadnell.

Licence: Public Domain Mark

Credit: The nature of man : studies in human optimism / by Élie Metchnikoff ; the English translation edited by Sir P. Chalmers Mitchell ; revised and brought up to date by C.M. Beadnell. Source: Wellcome Collection.