Note B — Chapter XV

If not kept prepared, the remedy may be speedily got ready in any chemist’s shop in the following way: Mix together the contents of the bottles containing tincture of the muriate of iron (the liquor ferri perchloridi does as well) and liquor ammoniæ fortior. Run the mixture through a loose filter, saving the precipitate; turn filtering paper or tow, if that has been used, and all into a vessel containing water, agitate well, and use the precipitate by spoonfuls as it falls to the bottom.