2-364-933 - The Print Collector/Heritage Images

Joseph Louis Gay-Lussac, French physicist and chemist, 1848. Gay-Lussac (1778-1850) made balloon ascents to investigate terrestrial magnetism and composition and characteristics of the atmosphere at different altitudes. He determined that the same volume of any gas will expand equally in response to the same increase in temperature. Amongst his achievements in chemistry were recognising iodine as a chemical element, and being one of the discoverers of the element boron. A photograph from Album de Photographies, Dans L'Intimite de Personnages Illustres, 1850-1950, Editions MD, 22 Rue de L'Arcade, Paris 8, 1850-1950.