From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
When a Child is Attacked.
Cut three corners of a table edge from below, of every edge a chip and a grain of salt, and a bit of bread, also a little of buck's beard. All this do noiselessly, and suspend on the child's neck, with a little unbleached yarn during an uneven hour, and with these N. N. words call the child's name, viz.: This I suspend for ransom sake, in the name of God the Father, the Son, and the Holy Spirit.
The grimoire Egyptian Secrets of Albertus Magnus lists this spell.