A column from the "From Woods & Fields" series on natural dyes in Minnesota Weaver, in which Connie Magoffin explains how to dye wool with natural indigo. She gives Mary Frances Davidson's indigo vat recipe from The Dye-Pot (sodium carbonate, powdered indigo, hydrosulphite). Numbered notes follow on sourcing chemicals, preparing and storing the vat in a glass jar, judging when the vat is ready, making a stock solution, and dipping and airing the fiber.