EditorialRhas?s in his chemistry laboratory, Baghdad, Rases (Al Razi) in his laboratory for chemistry in Baghdad, plate 4, after p. 42 (Bd. 2), Laplante, C. (sc.); Verhas, Jan, 1867, Louis Figuier: Savants du moyen ?ge. Geber, Mesu?, Rhas?s, Avicenne, Averro?s,...