Photogravure after a painting or photograph, of du Bois-Reymond (1818-1896), discoverer of neuroelectricity. As profesor of physiology at Berlin he investigated the physiology of muscles and nerves, demonstrating that an impulse travels along a stimulated nerve, and that this impulse can be measured electronically. From a collection of portraits of scientists, Berlin, 1910. Dimensions: 460mm x 340mm.
© Science Museum / Science & Society Picture Library