Rudolph Virchow, German pathologist, 1902. Virchow (1829-1902) specialised in cellular pathology. He was also a Liberal member of the Reichstag and an opponent of Bismarck. Illustration from The Process Year Book, A Review of the Illustrated Arts. published by AW Penrose & Co, (London, 1901). (Photo by The Print Collector/Print Collector/Getty Images)
