Richardson's ether spray
= Richardson's ether spray
{c}
A historical <local anaesthesia> method described by <Benjamin Ward Richardson> in 1866: an atomizer distributes <diethyl ether>, whose rapid <vaporization> cools the surface. The physical cooling mechanism and the author's historical account of <nerve> signalling should be distinguished.<On a New and Ready Mode of Producing Local Anæsthesia by Benjamin Ward Richardson>[1866, apparatus and mechanism]{ref}