Clover's nitrous oxide/ether inhaler 1876.
Ball
C
C
D000769:Anesthesia, Inhalation / Q000266:history* / Q000295:instrumentation; D004986:Ether / Q000266:history*; D049672:History, 19th Century; D006801:Humans; D008131:London; D009609:Nitrous Oxide / Q000266:history*
D004986:Ether; D009609:Nitrous Oxide