[The Braun apparatus for mixed ether-chloroform anesthesia. A contribution to the early history of combination anesthesia]

The Braun ether-chloroform vaporiser was very frequently used during the first fifty years of the 20th century, mainly in the German speaking region. This primacy was principally involved by the simple management, the universal possibilities of application and the "expedient" combination of ether and chloroform: this term means the differential employment of these two substances for conducting individual anaesthesia. Heinrich Braun had published his method after extensive experimental studies, here briefly referred to; further reasons for the considerable success of the apparatus are discussed.