1. Best ground Brazil wood 4 oz., diluted acetic acid a pint, alum 1/2 oz. Boil them slowly in a covered tinned copper or enamelled saucepan, for an hour; strain, and add 1/2 oz. gum. Some direct the Brazil wood to infuse for 2 or 3 days before boiling.

2. Weber's Red Ink. Boil 4 oz. of Pernambuca wood with 16 oz. of dilute acetic acid and an equal quantity of water, until 24 oz. remain. Add an ounce of alum, and evaporate again to 16 oz.; add gum arabic 1 oz., strain: and to the cold liquid add, lastly, 1 dr. of proto-chloride of tin. (Said to be of a finer colour, and more permanent, than cochineal ink.)

3. Boil 2 oz. of good Brazil wood, 1/2 oz. of alum, and 1/2 oz. of cream of tartar, in 16 oz. of rain water, till reduced to half; strain, and dissolve in it 1/2 oz. of gum arabic, and add a tincture made with 1 1/2 drs. of cochineal in 1 1/2 oz. of spirit of wine. - Henseler.

4. Brazil 4 oz., alum 2 oz., water a quart. Boil for an hour, and strain; then add 1 oz. of gum.

5. Triturate 1 dr. of cochineal and 1 dr. of carbonate of potash, with a little boiling water; then add 1 dr. of burnt alum and 2 drs. of cream of tartar, and water to bring it to the desired colour. [Not so permanent as the Brazil ink.]

6. Carmine Ink. Heat a scruple of carmine with 3 oz. of water of ammonia for some minutes, a little below boiling, and add 15 to 20 grs. of gum. (The inkstand must be kept well closed.)

7. Stephen's Red Ink. (Patent). Take some common soda, potash, or carbonate of ammonia, and add to it, at intervals, twice its weight of crude argol in powder. When effervescence has ceased, pour off the solution, or filter it from insoluble matter. Add to it next, by measure, half the quantity of oxalate of alumina, prepared by adding to precipitated alumina in a damp state as much oxalic acid as will dissolve it. Into this mixture, when cold, put as much powdered cochineal as will give it a fine red colour, and, after letting it stand for 48 hours, strain it for use.