From Grand Grimoire:
Take a green frog, cut off its head and his four feet. Then on a Friday with a full Moon put them in an elder tree and keep them there for twenty-one days, removing them on the twenty-first day precisely at midnight.
Then expose the parts of the frog to the light of the Moon for three nights. Afterwards, dry the frog parts in a new earthernware pot that has never been used. Take the dried frog parts, and grind to a powder. Mix the powder in equal measure with earth taken from a cemetery, if possible from the grave of someone in your family.
Carry the powder mixture with you, it will help you succeed in any undertaking.
The grimoire The Grand Grimoire lists this spell.
Timeline of related events
1821Publication of the Grand Grimoire (lists this spell)