Mathieu ORFILA (1787-1853) physician and chemist. L.A.S., Paris October 9, 1818; 1 page in-4. He accepts, after the flattering reception he has received, to continue to give the chemistry course at the Athénée for the year, "on Mondays and Thursdays of each week", at 3 o'clock in the afternoon or 9 o'clock in the evening; "I will be forced to give a lesson every evening in the vicinity of the Ecole de Médecine". He wants the Athénée to "acquire some indispensable instruments to give a course worthy of the establishment", for the sum of 300 fr. 4 letters (including 3 l.a.s.) from doctors : Frédéric Dubois d'Amiens (2), Henri Mondor, Armand Trousseau ; and a card from Jacques Tréfouel.