GLAISHER, JAMES (1809-1903), English meteorologist and aeronaut, was born in London on April 7, 1809. After serving for a few years on the ordnance survey of Ireland, he acted as an assistant at the Cambridge and Greenwich observatories succes sively, and when the department of meteorology and magnetism was formed at the latter, he was entrusted with its superintend ence, which he continued to exercise for thirty-four years, until his retirement from the public service. In 1845 he published his well-known dew-point tables, which have gone through many editions. In 1850 he established the Meteorological Society, act ing as its secretary for many years, and in 1866 he assisted in the foundation of the Aeronautical Society of Great Britain. He made a series of balloon ascents between 1862 and 1866, mostly in company with Henry Tracey Coxwell, with the object of carrying out observations on the temperature, humidity, etc., of the at mosphere at high elevations. He died on Feb. 7, 1903, at Croydon.