English physician, born in Essex on the 6th of May 1712; settled at Hertford, and, having become famous by reason of his advocacy of inoculation for smallpox, visited Russia by invitation in 1768, and became court physician, with the title of baron. The Empress Catherine and the Grand Duke Paul were inoculated by him. After returning to England he became a banker, was twice elected to Parliament, and died at Hertford on the 30th of December 1800. He published treatises on Inoculation in 1767 and 1776.
