To Prevent the Milk from being Taken from a Cow (Spell)

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

To Prevent the Milk from being Taken from a Cow.

When a cow has calved, press a whole egg into her throat, and during this same year no one can take her milk clan­destinely.

The grimoire Egyptian Secrets of Albertus Magnus lists this spell.

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