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Black Printing Ink

Boil 1½ gallons old clear linseed oil to the consistence of a thick varnish; whilst hot, add to it, during constant stirring, first 6 pounds powdered resin, and next 14 pounds dry brown soap shavings; then mix in it 24 ounces indigo blue, 24 ounces Paris blue, and 5 pounds best lampblack. After standing for a week it should be ground. at a time, 2 parts shellac, stirring it in constantly; put the vessel on the fire again until the mass is kindled, or nearly so. Put out the flame and allow it to cool a little, and then run it into the moulds. Ink thus made will make as fine or coarse lines as are desired, and its traces will remain unchanged for years before being transferred. When suet enters into the composition of lithographic crayons, it does not keep long, and requires immediate transferring to the stone.