When a Horse Leans its Head to One Side it is an Indication of the Worm in the Ear (Spell)

From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:

When a Horse Leans its Head to One Side, it is an Indication of the Worm in the Ear.

Take fresh bacon, add wine and vinegar, let this boil well, and put it into the horse's ear lukewarm.

The grimoire Egyptian Secrets of Albertus Magnus lists this spell.

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