Common Ink
To one gallon boiling Soft Water add three-fourths ounce
Extract of Logwood; boil two minutes; remove from the fire and stir in
forty-eight grains Bichromate of Potash and eight grains Prussiate of
Potash. For ten gallons use six and one-half ounces Logwood Extract,
one ounce Bichromate of Potash, and eighty grains Prussiate Potash;
strain. Six cents should buy the former and twenty-five cents the
latter.