II. (In White Bottle.)
| Pyrogallic acid | 15 grains. |
| Alcohol of 40% | 1 pint. |
Tannin Hair Dye.
I. (In White Bottle.)
| Powdered nut-galls | 14 oz. |
| Water | 1 pint. |
| Rose water | 1 pint. |
Boil the nut-galls in the water, strain the boiling liquid through a thick cloth into the rose water, and fill the still hot mixture into bottles which must be immediately closed. (It is essential that the liquid be hot during the filling, to guard against the development of mould.)
II. (In Dark Bottle.)
| Silver nitrate | 5½ oz. |
| Distilled water | 1 qt. |
Add ammonia water to the silver solution until the precipitate first formed is again dissolved.