A celebrated English physician, born at Folkestone, in Kent; graduated at Cambridge, and in 1602 received his medical diploma at Padua; settling in London, he in a few years became physician to St. Bartholomew's Hospital, and subsequently lecturer at the College of Physicians; in 1628 he announced in a published treatise his discovery of the circulation of the blood; for many years he was Court physician, and attended Charles I. at the battle of Edgehill (1578-1657).