.
- Cut potato tops when in flower, and express the juice; steep articles in this for forty-eight hours.
- Dip in a strong solution of weld after boiling in an aluminous mordant. Turmeric, fustic, anatto, &c., will answer the same as weld.
2690. Cloth (Black)
Impregnate the material with the acetate of iron mordant, and then boil in a decoction of madder and logwood.
2691. Cloth (Madder Red)
Boil the cloth in a weak solution of pearlash—an ounce to a gallon of water,—wash, dry, and then steep in a decoction of bruised nutgalls. After drying it is to be steeped twice in dry alum water, then dried, and boiled in a decoction made of three quarters of a pound of madder to every pound of the article. It should then be taken out and dried, and steeped in a second bath in the same manner. When dyed, the articles should be washed in warm soap and water, to remove a dun-coloured matter given out by the madder.