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Logwood Blue

Dye first a light blue with the vat (see No. 130), then soak the goods for several hours in a hot decoction of 2 pounds sumach; then work for 15 minutes in water containing 1 pint red liquor (see No. 100) and 1 pint iron liquor (see No. 118); wash in two waters, hot; then work for 20 minutes in a decoction of 2 pounds logwood; lift, and add 1/2 pint red liquor, and work again for 10 minutes; wash and dry.