Claude Joseph Rouget de Lisle adoption by the Provençal volunteers whom Barbaroux introduced into Paris and who were prominent in the storming of the Tuileries Palace on 10 August 1792. After the war, Rouget de Lisle wrote a few other songs of the same kind as the "Marseillaise" and in 1825 he published "Chants français" ("French Songs") in which he set to music fifty songs by various authors. His "Essais en vers et en prose" ("Essays in Verse and Prose", 1797) contains the "Marseillaise"; a prose tale "Adelaide et Monville" of the sentimental kind; and some occasional poems. He returned to public life after the
Emile Armet de Lisle de Lisle focused his studies on chemistry, and eventually he returned to work under his father in the family quinine business. For some time, Armet de Lisle worked as a consultant for Marie and Pierre Curie. The Curies had developed a method for extracting radium compounds from pitchblende (a radioactive ore), but the outlook of the procedure, called "fractional crystallization," was poor. Even with an abundance of pitchblende, only very minute amounts of usable radium could realistically be harvested through the tedious procedure. In 1904, de Lisle, realizing that such a process would likely benefit considerably from an industrial scale-up