John Bell

Fatal aneurysmal sac from the broken leg of a man, 1815. The sailor died of gangrene before the leg could be amputated. Drawing of Mr. Harkness's case of aneurism. Femoral vein 1, femoral artery 2, lacerated femoral artery 3, popliteal artery 4, ragged end of the bone 5, aneurysmal sac 6, condyle of the thigh bone 7, putella 8, mucous ligament 9, semimembranosus 10, semilendinosus 11, gastroenemii 12. Handcoloured copperplate engraving by after an illustration by John Bell from his own Principles of Surgery, as they Relate to Wounds, Ulcers and Fistulas, Longman, Hurst, Rees, Orme and Brown, London, 1815. . (photo by: Florilegius/ Universal Images Group via Getty Images)