When a Cow has lost her Milk (Spell)

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

When a Cow has lost her Milk.

Milk the cow upon the bottom of the tub, put the tub in a safe place, so that nothing can be added to its contents, take a knife wherewith to draw a cross through the milk, and dip it three times into the milk. Keep the tub with the milk in safety. Continue this for several days in succession.

The grimoire Egyptian Secrets of Albertus Magnus lists this spell.

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