Note 273 — SYMPATHETIC INK.
William Johnston translation
[Inks formed of solutions of the following salts, and washed with solutions of become
Muriate of antimony, tincture of galls, yellow.
Green vitriol, tincture of galls, black.
Nitrate of cobalt, oxalic acid, blue.
Subacetate of lead, hydriodic acid, yellow.
Arseniate of potash, nitrate of copper, green.
Nitrate of copper, prussiate of potash, brown.
Solution of gold, muriate of tin, purple.
Perchloride of mercury, hydrochlorate of tin, black.]