"Table of the quantity of the vapour of ether in one hundred cubic inches of air, saturated with it at various temperatures"

View this document as a PDF

PDF from photocopy; Taubman Medical Library, University of Michigan.

By John Snow, M.D.

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 thirty.

[The mixture of the vapour of ether with atmospheric air being highly explosive, surgical operations ought never to be performed under its influence by candlelight. The result of an explosion under such circumstances would be dreadful.--Ed.]