Important: Safety Warning
This page presents medical treatment from an era before modern medicine. The remedies described are ineffective against the conditions named, and some of the ingredients or doses are harmful. Do not use them to treat any illness; consult a qualified medical professional.
This information has been left in for historical purposes but should not be acted upon.
Verdigris
or VERDEGRIS, in chemistry, a green pigment prepared in the the S. of France, by by exposing thin plates of copper for some time to the action of the refuse of the grape from which wine has been made. In the United States it is sometimes prepared by placing copper plates in contact with woolen cloths, which have been soaked in pyroligneous acid. It is soluble in VERDUN dilute sulphuric acid, and is very poisonous. In pharmacy, verdigris is occasionally used externally, in powder or mixed with honey and vinegar, as an escharotic.