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Sympathetic Inks (Which about oz are sufficient)

of which about 24 oz. are sufficient for 16 oz. of the prepared oil. The oil loses by the boiling about of its weight, and emits very offensive fumes. Several other additions are made to the oil during the boiling, such as crusts of bread, onions, and sometimes turpentine. These are kept secret by the preparers. The intention of them is more effectually to destroy part of the unctuous quality of oil, to give it more body, to enable it to adhere better to the wetted paper, and to spread on the types neatly and uniformly.

Besides these additions, others are made by the printers, of which the most important is a little fine indigo in powder, to improve the beauty of the color.

Another Method.

One pound of lampblack ground very fine or run through a lawn sieve; 2 oz. of Prussian blue ground very fine; 4 oz. of linseed-oil, well boiled and skimmed; 4 oz. of spirit of turpentine, very clear; 4 oz. of soft varnish, or neat's-foot oil. To be well boiled and skimmed; and while boiling the top burned off by several times applying lighted write with a quill pen. Writings made on zino with this ink will keep many years.

Indian-ink.

Let ivory or lampblack be mixed with a small portion of Prussian blue or indigo, for a blueblack, and let the same blacks be united with raw or burnt umber, bistre, vandyke or any other brown, instead of the blue, for a brown-black.

These should be mixed together in a weak gumwater (perhaps matt-work would answer the purpose better), first levigating them very fine, in common water, on a marble slab. When dried to the consistence of a paste, let the glutinous matter be well mixed with them; that will be found sufficiently strong, which binds the composition, so as to prevent rubbing off by the touch. Indianink drawings should be handled as lightly as possible. Too much gum in the composition will create an offensive gloss.

Another Method.

Isinglass, 6 oz., and 12 oz. of soft water; make into size; add 1 oz. of refined liquorice, ground paper. Let these be well mixed; then put the up with 1 oz. of genuine ivory-black, and stir the whole in a jug, place that in a pan, and boil them very carefully 1 hour.

A Fine Black Printing-Ink. whole well. Evaporate the water in balneum mariæ, and form the sticks or cakes. A Substitute for Indian-ink.

Boil parchment slips or cuttings of glove-leather Less turpentine and oil, without Prussian blue, in water till it forms a size, which, when cool, befor common ink. Best Printing-Ink.

In a secured iron pot (fire outside when possible), boil 12 galls. of nut or linseed-oil; stir with iron ladle, long handle; while boiling put an iron cover partly over, set the vapor on fire by lighted paper often applied; keep stirring well, and on the fire 1 hour at least (or till the oily particles are burnt); then add 1 lb. of onions cut in pieces, and a few crusts of bread, to get out the residue of oil; also varnish, 16 oz.; fine lampblack, 3 oz.; ground indigo, oz. Boil well 1 hour.

Good Common Printing-Ink.

Take 16 oz. of varnish, 4 oz. of linseed-oil well boiled, 4 oz. of clear oil of turpentine, 16 oz. of fine lampblack, 2 oz. of Prussian blue, fine, 1 oz. of indigo, fine. Boil 1 hour.

Printers' Red Ink.

Soft varnish and vermilion with white of eggs not very thick. Common varnish, red lead and orange. Colcothar is indelible.

Blue.

Prussian blue and a little ivory-black with varnish and eggs very thick. Common indigo and varnish; then wash off with boiling lees.

Green.

Sesquioxide of chromium (chrome green). This is the ink used in printing Greenbacks. It is indestructible, and cannot be photographed. Perpetual Ink for Inscriptions on Tombstones, Marbles, etc.

This ink is formed by mixing about 3 parts of pitch with 1 part of lampblack, and making them incorporate by melting the pitch. With this composition, used in a melted state, the letters are filled, and will, without extraordinary violence, endure as long as the stone itself. Ink for Writing on Zinc Labels.