Glaisher-Coxwell balloon flight. 19th-century illustration of one of the balloon flights made by English meteorologist and aeronaut James Glaisher (1809-1903) and English aeronaut Henry Tracey Coxwell (1819-1900). Several sets of scientific measuring instruments are in the basket with them. Between 1862 and 1866, Glaisher and Coxwell made numerous ascents in order to measure the temperature and humidity of the atmosphere as high as they could safely ascend. Artwork from 'Aerostation - Aviation' (1911) by French civil engineer Max de Nansouty (1854-1913), part of the 'Les merveilles de la science' series of 1867-1891 by Louis Figuier.