From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
When a Horse becomes Scabby.
Take agrimonium and flee herbs and lard, of one as much as of the other. Put all these things into a new pot and cover well, so that no fumes evaporate. Expose to a strong flame and burn it to powder. Put of native alum and sulphur, an even quantity, pulverize and mix these altogether. Whenever you wish to use this, take for one horse a handful of the alum and sulphur powder, and an equal part of the powder made of the burned herbs, also white rosin, three cents, pound of butter or lard, one pound of bacon. Put all these articles into a pan, melt together as long as is necessary to cook a mush. Apply this as warm to the horse as your hand will bear it, rub it well into the skin. But before applying stir all thoroughly, otherwise the best will remain upon the bottom. Keep the horse dry, but do not cover it. Continue this until the horse is healed. The herbs should be gathered on the thirtieth day of the month.
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)