The art of anaesthesia . -Ether by tho semi-open drop method. Second position. Second towel in placecovering upper third of 1 ma Fio. 69.—Ether by the semi-open drop Fig. 70:—Ether by the semi-open drop method Third position. Third towel in method Fourth position The free end ofplace covering lower third of mask. the third towel is being laid over the exposed third of the mask.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanesthe, bookyear1919