Charles Sherrington (left), Leon Fredericq (seated) and Paul Grützner (right) outside the Institute of Physiology in Liège. Copy photograph (1940?) after the 1898 original.

Licence: Public Domain Mark

Credit: Charles Sherrington (left), Leon Fredericq (seated) and Paul Grützner (right) outside the Institute of Physiology in Liège. Copy photograph (1940?) after the 1898 original. Wellcome Collection. Source: Wellcome Collection.