Belgian chemist, industrialist, and philanthropist (1838–1922). Rare ALS in French, three pages on two adjoining sheets, 4.5 x 7.25, Chateau de La Hulpe letterhead, September 10, 1909. Untranslated letter to an unidentified gentleman. In fine condition, with a blue pencil notation to first page. Solvay, who made a fortune with chemicals, created the famous ‘Solvay conferences’ where Einstein, Marie Curie, Bohr, Heisenberg, Born, Paule, Broglie and other physics luminaries would meet and exchange discoveries. RRAuction COA.
