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Black or Colored Printing Ink
Balsam copaiba, 9 ounces; lampblack, 3 ounces; Paris blue, 14 ounces; Indian red, ounes; dry resin soap, 3 ounces. These will produce a superior black ink. By employing 2550. To Test the Quality of Lithowhite soap instead of yellow, and a sufficiency graphic Ink. Lithographic ink of good quality ought to be susceptible of forming an emulsion so attenuated that it may appear to be dissolved when rubbed upon a hard body of some coloring pigment instead of the black, blue, and red mixture, a good colored ink will be obtained.