The development of inhalation anaesthesia : with special reference to the years 1846-1900... / [Barbara M. Duncum].
- Duncum, Barbara M.
- Date:
- 1947
Licence: In copyright
Credit: The development of inhalation anaesthesia : with special reference to the years 1846-1900... / [Barbara M. Duncum]. Source: Wellcome Collection.
393/664 page 373
![then investigating the problem of the correct dosage of anaes- thetics—whose researches have proved of lasting importance, drew the attention of the Society of Anaesthetists 1 to Bert's work, in February 1896. He pointed out that the conclusion reached by Bert that the lethal dose of chloroform was double the minimum anaesthetic Fig. 105.—ADMINISTRATION WITH DUBOIS'S 'ANAESTHETIZING MACHINE' dose had already been reached many years earlier by John Snow (see p. 190). He further pointed out that the amount of chloroform which each had determined by experiment as being necessary fully to saturate the body tissues was identical, namely 2 per cent, by volume of chloroform vapour in the body fluids (cf. p. 189). ' The coincidence ', Waller is reported in the Transactions to have said, ' was veiled by the fact that different units [of measurement] had been used '. Waller explained that according to Snow the greatest amount of chloroform which the See footnote, p. 461.](https://iiif.wellcomecollection.org/image/b20457200_0397.jp2/full/800%2C/0/default.jpg)
