An encyclopedia entry on dyers'-weed (weld, Reseda luteola), describing the plant, its habitat, and its use as the fastest and brightest yellow dye for wool, cotton, mohair, silk and linen. It gives M. Gadd's mordanting and dyeing proportions using alum, cream of tartar, bran and potash, and a second process, from Tilloch's Philosophical Magazine, for making a yellow water-colour pigment from weld seeds with whiting and alum.