Arago1786-1853, La Jeunesse de la Science.

Paris:: Belin, (1987)., 1987. Series: Un Savant, Un Epoque. 8vo. 303 pp. Illus., index. Black printed wrappers. Fine. RARE. Dominique Francois Jean Arago, known simply as Francois Arago, was a French mathematician, physicist, astronomer, freemason, supporter of the Carbonari revolutionaries and politician. "Arago's earliest physical researches were on the pressure of steam at different temperatures, and the velocity of sound, 1818 to 1822. His magnetic observations mostly took place from 1823 to 1826. He discovered rotatory magnetism, what has been called Arago's rotations, and the fact that most bodies could be magnetized; these discoveries were completed and explained by Michael Faraday." – Wikip.