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Deep Blue Dye for Woolen Goods

To dye 5 pounds woolen goods, add to the requisite quantity of water, 2 pints chloride of iron and 1 pint chloride of tin; work in this for half an hour; lift, and work half an hour and work the silk in it for 30 minutes; lift, and add 1 pint of the alum in solution, to the weld liquor; work the silk 10 minutes longer, wring out and dry.

This gives a rich lemon yellow; deeper shades are made by using more weld: straw and amber tints are obtained by the use of a little annotto.