Violet Inks

1. Boil 8 oz. of logwood in 3 pints of rain or distilled water to 1 1/2 pints. Strain, and add 1 1/2 oz. of clean gum, and 2 1/2 oz. of alum in fine power. Agitate frequently till dissolved.

2. Cudbear 1 oz., pearlash 1 1/2 oz., mucilage 2 oz., soft water to make a pint. Pour the water hot on the cudbear and pearlash, allow the mixture to stand for twelve hours, then strain, and add the mucilage; 1 oz. of rectified spirit may also be added.

Purple Inks

1. Add a little muriate (chloride) of tin to a strong decoction of logwood. A little gum may be added.

2. Dr. Normandy's Purple Ink. To 12 lbs. of Cam-peachy wood add as many gallons of boiling water, pour the solution through a funnel, with a strainer made of coarse flannel, or 1 lb. 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 lbs. of alum, and for every 340 gallons of liquid add 80 lbs. of gum arabic or gum Senegal. Let these remain for 3 or 4 days, and a beautiful purple colour will be produced.

Proton Ink

1. Boil 1/2 oz. of catechu with 8 oz. of water until dissolved, and strain. Dissolve 60 grains of bichromate of potash in 1 1/2 oz. of water, and add it gradually to the solution of catechu until the desired shade is obtained. It requires no gum.

2. By adding to the violet ink finely powdered bichromate of potash, in the proportion of from 15 to 30 grains to an ounce, various shades of brown and snuff colour are obtained.

Yellow Ink

1. Gamboge triturated with water, and a little alum added.

2. Boil 8 oz. of French berries with 1 oz. of alum in a quart of water; strain, and add 1 oz. of gum.

Green Ink

1. Dissolve 3 drs. of bichromate of potash in 1 oz. of water; add to the hot solution 1/2 oz. of alcohol, and decompose the mixture by a little strong sulphuric acid till it assumes a brown colour. Evaporate the liquid to half, let it cool, dilute with a sufficient quantity of water, and filter; add to the filtered liquid 4 drs. of alcohol, decompose with a few drops of sulphuric acid, and let it rest. After some time it assumes a fine green colour.

A little gum may be added

[There is danger of the paper and steel pens suffering from an excess of sulphuric acid.] - Winckler.

2. Distilled verdigris 2 oz., cream of tartar 1 oz., water 8 oz.; boil to half and filter. - Klaproth.

3. Add to the yellow ink No. 2 sufficient sulphate of indigo.

4. Dissolve sap green in water with a little alum.

5. Rub 3 1/2 drs. of Prussian blue, and 3 drs. of gamboge, with 2 oz. of mucilage, and add 1/2 pint of water.

Gold and Silver Ink

Fine bronze powder, or gold or silver leaf, ground with a little sulphate of potash, and washed from the salt, is mixed with water and a sufficient quantity of gum. Or, the gold leaf may be ground on a slab with honey, which is afterwards washed away.

Ink for writing on Zinc Labels

- Horticulwral Ink: - 1. Dissolve 100 grs. of chloride of platinum in a pint of water. A little mucilage and lamp-black may be added.

2. Sal ammoniac 1 dr., verdigris 1 dr., lamp-black 1/2 dr., water 10 drs.; mix.

Ink for writing on Steel or Tin Plate, or Sheet Zinc. 1. Mix 1 oz. of powdered sulphate of copper and 1/2 oz. of powdered sal ammoniac with 2 oz. of diluted acetic acid; adding- lamp-black or vermilion.

2. Dissolve 1 part of copper in 10 of nitric acid, and dilute with 10 parts of water.