From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
To Prevent Children having Measles from becoming Blind.
As soon as the children get sick from measles, hang on their necks the roots of purnellac, and your sorrows may cease. Probatum.
Timeline of related events
1725Publication of Egyptian Secrets of Albertus Magnus (lists this spell)
1869English-language translation of Egyptian Secrets (lists this spell)