This section is from the "Henley's Twentieth Century Formulas Recipes Processes" encyclopedia, by Norman W. Henley and others.
Dissolve 1 ounce of gum arabic in 6 ounces water, and strain. This is the mucilage. For Black Color use drop black, powdered, and ground with the mucilage to extreme fineness; for Blue, ultramarine is used in the same manner; for Green, emerald green: for White, flake white; for Red, vermilion, lake, or carmine; for Yellow, chrome yellow. When ground too thick they are thinned with a little water. Apply with a small brush.
Triturate together 1 pint pine soot and 2 pints Prussian blue with a little glycerine, then add 3 pints gum arabic and sufficient glycerine to form a thin paste.
The basis of the stencil inks commonly used varies to some extent, some preferring a mixture of pigments with oils, and others a watery shellac basis. The basis:
Shellac............ 2 ounces
Borax............. 1.5 ounces
Water............. 10 ounces
Boil together until 10 ounces of solution is obtained. The coloring:
Prussian blue...... 1 ounce
China clay......... 0.5 ounce
Powdered acacia. .. 0.5 ounce Mix thoroughly and gradually incorporate the shellac solution.
Prussian blue...... 2 ounces
Lampblack........ 1 ounce
Gum arabic........ 3 ounces
Triturate together the dry powders and then make into a suitable paste with glycerine.
Varnish such as is used for ordinary printing ink, 1 pound; black sulphuret of mercury, 1 pound; nitrate of silver, 1 ounce; sulphate of iron, 1 ounce; lampblack, 2 tablespoonfuls. Grind all well together; thin with spirits turpentine as desired.
Sulphate of manganese, 2 parts; lampblack, 1 part; sugar, 4 parts; all in fine powder and triturated to a paste in a little water.
Nitrate of silver, 1/4 ounce; water, 3/4 ounce. Dissolve, add as much of the strongest liquor of ammonia as will dissolve the precipitate formed on its first addition. Then add of mucilage, 1.5 drachms, and a little sap green, syrup of buckthorn, or finely powdered indigo, to color. This turns black on being held near the fire, or touched with a hot iron.