Keywords: Emil DuBois-Reymond BNF Gallica.jpg w Emil du Bois-Reymond 1818-1896 German physician and physiologist the discoverer of nerve action potential and one of the fathers of experimental electrophysiology w Emil du Bois-Reymond fr 1818-1896 Physiologiste allemand l'un des fondateurs de l'électrophysiologie ARK-BNF Haase phot Berlin Upload stitch and restoration by Jebulon 1870 http //gallica bnf fr/ark /12148/btv1b8436413r/f15 item cleaning of dust spots tears and scratches due to age Reduction of saturation increasing of contrasts With GIMP Emil du Bois-Reymond photograph 00 20 4 April 2013 UTC Emil DuBois-Reymond BNF Gallica jpg PD-art-100 Emil DuBois-Reymond 19th-century portrait photographs of standing men at full length 1870c Black and white photographic portraits of male scientists Crossed legs Curtains in art Drapery in portrait photographs 1870c Men with beards Tables in portrait photographs 1870c Valued images by Jebulon |