"Table of the quantity of the vapour of ether "

London Medical Gazette
(29 January 1847): 219-220

By John Snow, M.D.

Table of the quantity of vapour of ether in 100 cubic inches of air, saturated with it at various temperatures.--

At about 45° the weights of vapour of ether and of air are equal, and at a little above 70° the volumes are equal. The weights are calculated with the barometer at 30.

* * * From this it will be seen that the quantity of ether administered with air varies materially with the temperature.