A very good application, when black Bryony cannot be procured, is the Hydrochlorate of Ammonia in solution, mixed with bread or linseed, so as to form a soft poultice. (Tyrrell.*) It tends to prevent subsequent discoloration in all cases of bruises and sprains.
* Glassow Med. Journ., 1856. Cooper's Surg. Dict. 7th Ed.
Cyc. Pract Med. vol. i. p 26. § Brit. and For. Med. Rev. 1839