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Beautiful Blue Writing Fluid
the decoction, and dissolve in it by agitation Dissolve basic or soluble Prussian blue in 20 grains yellow chromate of potash; it will pure water. This is the most permanent then be fit for use. and beautiful ink known. It is not affected 2484. Shellac Ink, or Coathupe's by the addition of alcohol, but is immediately Writing Fluid. To 18 ounces water add 1 precipitated by saline matter. The precipi-ounce powdered borax and 2 ounces bruised tate, however, still possesses the property of shellac, and boil them in a covered vessel, dissolving in pure water. stirring them occasionally till dissolved. Fil-