1-152-854 - Ann Ronan Picture Library/Heritage-Images

Avicenna (Ibn Sina) (980-1037), Arab physician and philosopher, 1493. An interpreter of Aristotle to Islam, Avicenna compiled an encyclopaedia of medical knowledge. He is seen here performing an uroscopy, the practice of diagnosing illnesses by a visual examination of a sample of urine. From Liber chronicarum mundi (Nuremberg Chronicle) by Hartmann Schedel. (Nuremberg, 1493).