Complex sentence: He worked as a physician at St. Thomas's Hospital, London, visited Barbados, Montserrat, Antigua and St. Kittsin the West Indies and settled as physician in Jamaica in in 1746.
Split into simpler sentences: He worked as a physician at St. Thomas's Hospital, London. He visited Barbados, Montserrat, Antigua and St. Kittsin the West Indies and settled as physician in Jamaica in in 1746.