William Harvey, English physician, 17th century.

Engraving by T Cook. The English physician William Harvey MD, FRCP (1578-1657), was attached to St Bartholomew's Hospital, and was physician to both James I and Charles I. Best known for discovering the circulation of the blood, made public in 1616, Harvey also superintended the physical examination of women accused of witchcraft and built a library for the Royal College of Physicians.the foreground is the physicians' symbol, a snake entwined around a staff.