(see also Hectograph)

T.—Black.—Methyl violet, 10 parts; nigrosin, 20 parts; glycerine, 30 parts; gum arabic, 5 parts; alcohol, 60 parts. II.—Blue. — Resorcin blue M, 10 parts. Dissolve by means of heat in a mixture of:

Dilute acetic acid .... 1 part

Distilled water....... 85 parts

Glycerine........... 4 parts

Alcohol, 90 per cent. . 10 parts

III

Green. —Aniline green, water solution, 15 parts; glycerine, 10 parts; Water, 50 parts; alcohol, 10 parts.

Paste Ink to Write with Water

I

Black. —Take 4 parts of bichromate of potash, pulverized, and mixed with 25 parts of acetic acid; 50 parts of liquid extract of logwood; J part of picric acid; 10 parts of pulverized sal sorrel; 10 parts of mucilage; and 1/2 part of citrate of iron, and mix well. The liquid extract of logwood is prepared by mixing 3 parts of an extract of common commercial quality with 2 parts of water.

II

Red.—Take 1 part of red aniline mixed with 10 parts of acetic acid; 5 parts of citric acid, and 25 parts of mucilage, all well mixed. For use, mix 1 part of the paste with 16 parts of water.

III

Blue.—Take 2 parts of aniline blue mixed with 10 parts of acetic acid; 5 parts of citric acid, and 40 parts of mucilage, all well mixed. For use, mix 1 part of the paste with 8 parts of water.

IV

Violet.—Use the same ingredients in the same proportions as blue, with the difference that violet aniline is used instead of blue aniline.

V

Green.—Take 1 part of aniline blue; 3 parts of picric acid, mixed with 10 parts of acetic acid; 3 parts of citric acid, and 80 parts of mucilage. For use, 1 part of this paste is mixed with 8 parts of water.

VI

Copying.—Take 6 parts of pulverized bichromate of potash, mixed with 10 parts of acetic acid and 240 parts of liquid extract of logwood, and add a pulverized mixture of 35 parts of alum, 20 parts of sal sorrel, and 20 parts mucilage. Mix well. For use, 1 part of this paste is mixed with 4 parts of hot water.

Purple Ink

I

A strong decoction of logwood, to which a little alum or chloride of tin has been added.

II. (Normandy)

To 12 pounds of Campeachy wood add as many gallons

of boiling water. Pour the solution through a funnel with a strainer made of coarse flannel, or 1 pound of hydrate, or acetate of deutoxide of copper finely powdered (having at the bottom of the funnel a piece of sponge); then add immediately 14 pounds of alum, and for every 340 gallons of liquid add 80 pounds of gum arabic or gum Senegal. Let these remain for 3 or 4 days, and a beautiful purple color will be produced.

Red Ink

Brazil wood, ground, 4 ounces; white wine vinegar, hot, 1.25 pints. Digest in a glass or a well-tinned copper or enamel saucepan, until the next day; then gently simmer for half an hour, adding toward the end gum arabic and alum, of each, J ounce.