George Young (1692–1757) was an Edinburgh surgeon, physician, philosopher and empiric. As a young man he was a member of the Rankenian Club, a group of intellectuals who were to go on to become some of the most influential figures of the Scottish Enlightenment. Young's lecture notes (1730–31) give a clear account of contemporary medical and surgical practice and are characterised by the empirical approach to the advancement of medical knowledge, especially in the evolving understanding of nerve and muscle function. His Treatise on Opium (1753) was a practical guide for physicians in the use of the drug which emphasises its complications. It was the longest, most balanced and most comprehensive English language account yet written. Young's legacy is also apparent in the work of his pupil Ro