Frederic Hewitt's apparatus for administering gas and ether, showing mouth-piece, Clover's ether chamber and a gas bag. From Dudley Wilmot Buxton Anaesthetics Their Uses and Administration, London, 1900.

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Photo credit: © World History Archive / Alamy / Afripics
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Keywords: 1900, administering, administration, anaesthesia, anaesthetics, apparatus, bag, buxton, chamber, clovers, dudley, ether, frederic, gas, hewitts, london, medicine, mouth-piece, showing, wilmot