Note 5 — SECTION I. Of Gunpowder.
Reading edition
From pyr, fire, and lignum, wood; the acid obtained from the partial combustion of wood; this acid is used in calico printing as mordants for dark-coloured patterns.
Reading edition
From pyr, fire, and lignum, wood; the acid obtained from the partial combustion of wood; this acid is used in calico printing as mordants for dark-coloured patterns.