On the safe abolition of pain in labour and surgical operations by aneasthesia with mixed vapours

absolute alcohol administered agent alcohol and ether alcohol vapour amount anæs anæsthetic fluids anæsthetic process anesthesia anesthetic mixtures aperture appa apparatus arrangement bottle breathing cent centimetres chloro Chloroform Committee chloroform vapour combination compartment considerable contained cotton wick danger degree depressing influence dilution distilled water dose of chloroform Eau de Cologne effect employed ether and chloroform ether vapour evaporating surface experiments face-piece fact given grains half heart heart's action impregnation impurities inches index finger induced inhalation insensibility instance instrument labour less liquid mercurial column method methyl minims minutes mixed vapours nearly necessary observed obstetric obtained odour ordinary pain parturition patient potash poured practice probably procure produce proportion pulse pure chloroform quantity of chloroform ratus respiration result roform sample simple smell specific gravity stimulant substances sufficient sulphuric ether surgical operations temperature tion tube valve vapour of alcohol vapour of ether volatility