From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
Remedy against all Injuries and Diseases of Horses.
Take arsenic, the size of a small pea, and oil lard, the size of a walnut. These two articles mix well together. Take a piece of leather the size of the rough or bristly part. Do not apply the plaster too thick, and .let it remain upon the sore for three days and three nights. On the fourth day, take a quart of larget, and wash it out in fresh water. Take the white of one or two eggs. Mix all these things well, so that they make an ointment. Put it where the former plaster was, until the leather falls off, as it had been before. Then take the salve, with the albumen, and put a large plaster upon the other. Boil a water of heart's-ease herb and attlic, and wash, it out. Then take the dry powder, and heal therewith the sore, and no rough spot will appear thereafter. Probatum! The first plaster, however, should not he left on any longer than three days and three nights, as it will eat in too deeply.
The grimoire Egyptian Secrets of Albertus Magnus lists this spell.
Timeline of related events
1725Publication of Egyptian Secrets of Albertus Magnus (lists this spell)
1869English-language translation of Egyptian Secrets (lists this spell)