Abstract My area of speciality is the history of ideas in late-seventeenth-century England, on which I have published various books; my research has focused on the Royal Society in its early years, and on such thinkers as John Aubrey, John Evelyn, Robert Hooke, and Samuel J eake. Though in the past I have attempted a general survey of the ideas of the period in my Science and Society in Restoration England (1981), I have come to feel that such surveys almost inevitably involve undue simplification. Instead, it has increasingly been my conviction that the ideas of a period like this can only be properly understood by intensive study of the ideas of individual thinkers, preferably involving close scrutiny of the archival remains that they have left us. For that reason, I am myself committed to a sustained programme of research on Robert Boyle, whose extensive papers I am trying to understand and exploit, in conjunction with a new edition of his writings for the ‘Pickering Masters’ series, which I am currently preparing in collaboration with Antonio Clericuzio and Edward B. Davis.