GRAHAM, GEORGE, a distinguished mechanician and clockmaker, was born in 1675 at Horsgills, in the parish of Kirkintan, and county of Cumberland. His inventions in science are numerous and valuable. He invented and constructed with his own hands the sector with which Bradley discovered two new movements in the so-called fixed stars. He also executed the superb mural arch in the observatory of Greenwich, on the pattern of which the best instruments of this kind are still made. The French Academy selected him to make the necessary instruments for their expedition to the north, undertaken for the purpose of determining the figure of the earth. Some of Graham's horological inventions are no less remarkable than those already alluded to. It is to him that we owe the mercurial compensation pendulum, the dead escapement for clocks, and the horizontal or cylinder escapement for watches, which are all detailed under CLOCK AND WATCH WORK. Graham was a Quaker, and a man of almost proverbial probity and veracity. His published works are limited to his contributions to the Royal Society, of which he was a member. He died in 1751, and was buried in Westminster Abbey.