101. A Substitute for Greenish-Blue color

In place of greenish-blue color, take scoria of iron, crush it with care until reduced to the appearance of smegma, and boil it with some vinegar until it becomes stiff. Immerse the wool, previously cleaned with heavy fullers herb, and you will find it dyed in purple. Dye in this way with the colors that you have.

Citation Type  Fabric Dye Recipe
Citation Year 300