From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
The Usefulness of Black Snails.
They cure withered limbs and warts on hands and feet, corns on feet, heels, ruptures and other hurts. Put the snails into a pot, add a good deal of salt and keep it nine days in the ground. After this distil in a glass in the sun.
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)