Caption:
Medicine / Anaesthesia:. Chloroform marks after Curt Schimmelbusch (1860-1895), c. 1890. (bottom and top right), H. Stoeckel Collection, Bonn. Anaesthesia mask after Theodor Kocher (1841-1917), c. 1895. (top left). Collection of the Department of Medical History, University of Zurich.