Dissolve the aniline in the alcohol and add the other ingredients.
Marking Ink.
FOR PACKAGES AND BOXES.
| Extract of Logwood8 | ounces. |
| Bichromate of potash1 | ounce. |
| Hydrochloric acid 3/4 | ounce. |
| Dextrine4 | ounces. |
| Water 1/2 | gallon. |
Boil the logwood with the water, add the acid and potash, and lastly the dextrine.
Indelible Ink.
FOR MARKING LINEN, ETC.
Dissolve 5 parts of lunar caustic in 10 parts of spirit of sal ammoniac. Add to the solution 7 parts of pure soda, 5 of gum Arabic, and 12 of water.