[FROM LOGWOOD.]
A good black ink can be made by boiling 3 pounds of logwood with sufficient water to leave a residue of 5 quarts. When cold add 3 drachms of yellow bichromate of potash and stir thoroughly. To prevent thickening add a few drops of solution of mercury salt. It flows freely from the pen. Its color at first is of a dark indigo-blue tint, changing soon into a permanent black. A beautiful gloss may be given to this or any other black ink by adding a strong solution of shellac and borax.
Fine Black Ink.
[FROM ANILINE.]
| Black aniline crystals (negrosine)1 1/2 | ounces. |
| Dextrine1 | ounce. |
| Corrosive sublimate5 | grains. |
| Water2 | quarts. |
Dissolve the negrosine in a quart of hot water; dissolve the corrosive sublimate and dextrine in the remaining quart, and pour all together. This is a splendid ink, flows freely from the pen, and will keep well.
In making ink use care in buying the best anilines and other ingredients. This is important.
Fine Red Ink.
| Eosine aniline100 | grains. |
| Water1 | pint. |
Simply dissolve the aniline in the water. No better bright, fiery red ink can be made.