SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Rudolf Ludwig Carl Virchow (1821-1902), German pathologist. Virchow was a skilful pathologist who was the first to recognise leukaemia, and also described many other conditions such as thrombosis, embolism and inflammations. In the 1850s he applied Schwann and Schleiden's cell theory to pathology. He believed that diseases originated within cells, and saw disease as a continuous change in the cells rather than as a result of an invasive agent as proposed by the germ theory of Pasteur. Artwork from the ninth volume (first period of 1892) of the French popular science weekly 'La Science Illustree'.
Model release not required. Property release not required.