Chromolithograph by Vincent Brooks Day & Son of a caricature by Leslie Ward, better known as Spy, for 'Vanity Fair' magazine. Sir Richard Douglas Powell (1842-1925) was President of the Royal College of Physicians from 1905-1910. The subtitle 'Chests' suggests he may have been a thoracic consultant. Dimensions: 400mm x 270mm.
© Science Museum / Science & Society Picture Library