Oil of turpentine 6 oz.
Sulphuric acid 2 oz.
Mix cautiously in the open air, or in a chimney, in a vessel large
enough to hold one pound and a half; stir the mixture, and, when they
are perfectly combined, add one pound and half of hogs’ lard: continue
stirring until cold. By the addition of cantharides, this ointment forms
a strong blister, and with sulphur vivum, finely powdered, or flower of
sulphur and train oil, it becomes a good mange ointment.