| Guillaume-Amant Duchenne de Boulogne The facial expression of fear on the human face being induced by electrical currents. 1862 Book illustration Wellcome Collection Wellcome Library, London (L0040111, Library reference no.: GC XWM) LL/36755 Guillaume Benjamin Amand Duchenne de Boulogne Mécanisme de la physionomie humaine, ou, Analyse électro-physiologique de l'expression des passions (Paris: Renouard, 1862), Plate 7, Image 62
| |