"[[w:Chlorine|[C]hlorine]] possesses the singular power of removing the of certain bodies, replacing it atom for atom. This law of nature, this law or theory of substitutions... I propose to call... metalepsy, from μετάληψις, which expresses... that the body... has taken one element in place of another, chlorine in place of hydrogen, for example. Thus is formed by substitution, or by metalepsy; it is one of the maleptic products of alcohol. ...acetic ether, , are maleptic products of alcohol."