Black Printing Ink.

To make a good, permanent black printing ink, take

Balsam copaiva 9 oz.
Best lampblack 3 oz.
Prussian blue 1½ oz.
Indian red 0¾ oz.
Turpentine soap, dried 3 oz.

Grind on a stone until extreme fineness has been obtained. This ink will work clear and sharp, and can easily be removed from the type.