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.

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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. Public Domain Mark. Source: Wellcome Collection.