Born, 1618 or 1619; educated: the free school of Thame, Oxfordshire; Trinity College, Oxford, 1635-1639; fellow of Merton College, 1640; studied medicine at Leiden, 1642-1645; incorporated his Leiden MD at Oxford, 1647; Professor of Geometry at Gresham College, 1648-1656; fellow of the College of Physicians, 1649; cared for seamen, wounded in the Dutch war, at Ipswich, Harwich, and possibly London, 1653-1654; physician to Bulstrode Whitelocke's embassy to Sweden, 1653; practised in London, 1654-; served twelve terms as censor of the College of Physicians between 1657 and 1680; College of Physicians registrar, 1674-1682; College of Physicians elect from 1676; College of Physicians treasurer, 1682; College of Physicians president, 1683; died, 1684.